Re: 8-Update
From: Anders Nelson via cctalk: Saturday, February 16, 2019 10:58 AM Oh boy, how did I miss that someone has created a front panel PCB layout for a PDP-8/e? Can you ask Vince to share that design please? Took me a bit of hunting to see how my name came up, as the thread is from a while back, and I had forgotten about it :-). I gather you are responding to: From: Rod G8DGR via cctalk: Saturday, December 15, 2018 11:36 PM A friend has been able to 3D print toggle switch leavers that fit and work. Vince Sylngstat has done a console board PCB layout. (Slyngstad) In which case, switch handles can be found here: http://www.so-much-stuff.com/pdp8/cad/3d.php (The FP end is facing you, so you may not instantly recognize it.) and the PCB can be found here: http://svn.so-much-stuff.com/svn/trunk/Eagle/projects/DEC/8ePanel/ or by searching for "8/e front panel" on http://www.so-much-stuff.com/pdp8/cad/boards.php and those have been out there for quite a while. Enjoy! Vince
Re: 8-Update
Oh boy, how did I miss that someone has created a front panel PCB layout for a PDP-8/e? Can you ask Vince to share that design please? On Tue, Dec 18, 2018, 6:08 PM Paul Birkel via cctalk >I have an .slt for the PDP-8/e lever > >Rod > > Please publish/share? > > paul > >
Re: OT - CNC - Re: 3D printer $179.99 (today ONLY) (Was: 8-Update
On 2018-12-19 5:32 PM, Zane Healy wrote: > >> On Dec 19, 2018, at 1:22 PM, Toby Thain via cctalk >> wrote: >> >> Since talk has drifted to CNC, you can easily use this cheap North >> American unit (Waterloo, Canada) for plotting -- it's one of their >> demos. I'm tempted to get one for PCBs and other things. >> >> I'm not affiliated but the people behind this are great (and sometimes >> hiring): >> >> https://sienci.com/product/sienci-mill-one-kit-v3/ >> >> --Toby > > Now we’re talking! In many ways, this would be more useful, for me than a 3D > printer. I need to spend some time reading their website. > Agreed. Looks like I wasn't the only one curious about putting a laser on it: https://twitter.com/SienciLabs/status/1075902435942653954 --Toby > Zane > > > >
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
On Wed, 19 Dec 2018, Fred Cisin via cctalk wrote: On Wed, 19 Dec 2018, Jay West wrote: Some are casting metal parts by 3d printing molds. Besides printing molds, I have heard that there is now a filament available that can be melted out/away, for a variant of lost-wax [sandbox?] casting. Hit YouTube and search for "Lost PLA casting". People are making some pretty cool things that way. You can also print with machinable wax: https://www.machinablewax.com/product.php?product=52 and do the same thing. g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!
Re: OT - CNC - Re: 3D printer $179.99 (today ONLY) (Was: 8-Update
On Wed, 19 Dec 2018, Toby Thain via cctalk wrote: Since talk has drifted to CNC, you can easily use this cheap North American unit (Waterloo, Canada) for plotting -- it's one of their demos. I'm tempted to get one for PCBs and other things. I'm not affiliated but the people behind this are great (and sometimes hiring): https://sienci.com/product/sienci-mill-one-kit-v3/ These guys were at MRRF (Midwest RepRap Festival - if you're interested in 3D printing, you MUST go! It's a free event) last year or the year before. Nice bunch. The company name is pronounced the same way you'd say "CNC" (SeeEnSee) :) g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
There’s a lot to be said for the Navy manuals because we (22 years in my case), as all of the branches of the military and, increasingly, industry, have had to educate our enlisted people in STEM principles, concepts, practices, and skills. That’s because the K-12 “education” system has largely punted on doing this because it’s largely run by people with humanities degrees and teaching experience. Kids are more likely to be asked how something feels about being oppressed by gravity and jackbooted thugs that walk on them, rather than calculating the force of gravitational attraction, per g*M1*M2/(r^2). I know this because, following my Navy and SillyCon Valley careers, I’ve been teaching 6 - 12 grade STEM and Computing in multiple districts in four states and have been continually battling to get equitable funding and administrator/board support everywhere, all the time. One school district thought nothing about spending three million dollars for an AstroTurf football field with a state-of-the-art scoreboard and stadium bleachers, but my annual budget was a whole $200 for equipment, materials, books, software, etc. STEM textbooks were upwards of 12 years old - the periodic tables in chemistry books didn’t contain the 10 most recently fabricated elements (atomic numbers 109 - 118). The Earth and Space Science books had nothing more recent about planetary probes/landers/rovers since the Voyagers were launched in 1977 (which I witnessed). On-line/optical-digital companion material didn’t exist for any of the STEM textbooks at any price. I could have taught at universities and colleges, but I discovered that none of the students were from the local region because they just didn’t have strong enough STEM academic performance to be able to succeed at the post-secondary level. I suspect that the administrators of these institutions were also swayed by foreign students whose authoritarian governments are more than happy to pay full freight in tuition, etc., because it’s not their money, anyway. The result is that tuitions, fees, etc., are rising even faster than they had been due to loan guarantees, grants, and scholarships. I’m doing as much as I can as a lone voice in the wilderness. The humanities types are complaining that my incessant howling is oppressing the snail darters, though ...
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
> On Dec 19, 2018, at 5:34 PM, Paul Koning wrote: > > > >> On Dec 19, 2018, at 8:07 PM, Zane Healy via cctalk >> wrote: >> >> >>> On Dec 19, 2018, at 4:32 PM, Jim Manley via cctalk >>> wrote: >>> >>> BTW, he cited his source for all of his knowledge as the WW-II era U.S. >>> Navy manual for casting metal, from back when sailors just made whatever >>> parts were needed. ... > > Another nice resource for casting, especially for aluminum and for amateurs, > is the famous series by Dave Gingery on how to build machinery (lathe, mill, > shaper) from cast aluminum (recycled aluminum scrap). I have a couple of his > books; the full series starts with how to make a foundry using charcoal for > fuel, and goes on to making a lathe, then a shaper, then a mill, and more. > Neat stuff. > > Lindsay Publications used to print these, but Lindsay retired and that > company closed down. I did see Gingery's books still in print via some other > path more recently, though. > > paul INTERESTING! These books sound like a great resource! http://gingerybooks.com Zane
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
> On Dec 19, 2018, at 8:07 PM, Zane Healy via cctalk > wrote: > > >> On Dec 19, 2018, at 4:32 PM, Jim Manley via cctalk >> wrote: >> >> BTW, he cited his source for all of his knowledge as the WW-II era U.S. >> Navy manual for casting metal, from back when sailors just made whatever >> parts were needed. ... Another nice resource for casting, especially for aluminum and for amateurs, is the famous series by Dave Gingery on how to build machinery (lathe, mill, shaper) from cast aluminum (recycled aluminum scrap). I have a couple of his books; the full series starts with how to make a foundry using charcoal for fuel, and goes on to making a lathe, then a shaper, then a mill, and more. Neat stuff. Lindsay Publications used to print these, but Lindsay retired and that company closed down. I did see Gingery's books still in print via some other path more recently, though. paul
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
> On Dec 19, 2018, at 4:32 PM, Jim Manley via cctalk > wrote: > > BTW, he cited his source for all of his knowledge as the WW-II era U.S. > Navy manual for casting metal, from back when sailors just made whatever > parts were needed. They had well-equipped and stocked shops on larger > ships and tenders, with furnaces for casting all the way through lathes, > milling machines, and drill presses for final machining. Those manuals are > on-line and contain a wealth of industrial technical information about > every facet of metalworking, electricity and electronics, radio, steam and > diesel engineering, etc., but in language that boys off the farm could > understand quickly and comprehensively. I sure hope that there are copies > stashed in that critical human history document vault, that the Long Now > Foundation (LongNow.org) is building, with a mechanical clock that will be > able to run for 10,000 years with no maintenance, to be installed > underground in a remote part of West Texas (kinda redundant, I know!). I’m not sure the quality of Navy Manuals now, but I do know that the ones from the 70’s and 80’s were for the most part fantastic. I think the only ones I have that are WW II era (technically Korea) would be for Photography. The NEETS series which crossed several ratings is definitely worth while, though by now it’s likely pretty dated (and I’m not sure if it’s been updated. While the Frigate I was on lacked a furnace, it had the rest of the stuff you mention above. That was on one of the smallest ships. Zane
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
On Wed, Dec 19, 2018 at 3:31 PM Fred Cisin via cctalk wrote: > On Wed, 19 Dec 2018, Jay West wrote: > > Some are casting metal parts by 3d printing molds. > > Besides printing molds, I have heard that there is now a filament > available that can be melted out/away, for a variant of lost-wax > [sandbox?] casting. PLA (polylactic acid) will easily evaporate/burn if you pour molten metal into a sand mold packed tightly around a 3-D printed positive (pattern) made of that material. Be aware that you need to allow for the pattern's dimensions being about 4% larger than those of the final part's, for aluminum after it cools, due to its high thermal expansion coefficient (or contraction, in this case). The coefficients for other metals/alloys have to be looked up, but will generally be less than aluminum's, which also has one of the higher melting points. There's a YouBoob video from a few years ago somewhere that I can't find any more, made by a crazy guy in Idaho. He shows the whole process for making a large CNC lead screw bearing mounting part, from a 3-D printed pattern, including mixing plaster with sand using an electric hand mixer in a stainless steel bowl in his kitchen (obviously a confirmed bachelor, or he has the most awesome wife _ever_!). He also shows how to use small pieces of cut-up rigid insulating foam to form channels (where molten metal enters) and chimneys (where gases from pattern/channel/chimney materials evaporating/burning escape). Best of all, he's in his fuzzy slippers outside on snow with an aluminum high-temperature firefighters pants, jacket, and hood on, pouring molten aluminum (with pieces of copper pipe melted in to improve pourability) into a sand mold from a crucible heated in a homemade furnace. The latter was made from a 20-gallon steel barrel found in the dump ... I mean, "recycling center", into which he had poured a cylinder of firebrick mortar formed by a smaller steel barrel placed in the center of the larger one as a form, which was removed from the inside after the mortar had hardened. He referenced a website that shows how to make awesome propane burners from cut and drilled iron pipe, then showed how he cut tangential holes through the barrels and had inserted a pipe through the holes before pouring the mortar, the same diameter as the burner. The combustion gases would then swirl up around the crucible inside the mortar cylinder for the fastest melting of the metal, when the burner was inserted through the tangential holes and where the placeholder pipe had been. The money shot is when his Husky/Malamut keeps walking back and forth, in and out of frame behind him during the video, restrained by a chain attached to an elevated wire line, and then at the end the dog sits down. The dog is looking at him with this priceless, straight-man expression with narrowed eyes and appears to be thinking something akin to, "Are you done with this foolishness yet, so we can go inside to get some chow and warm up?" BTW, he cited his source for all of his knowledge as the WW-II era U.S. Navy manual for casting metal, from back when sailors just made whatever parts were needed. They had well-equipped and stocked shops on larger ships and tenders, with furnaces for casting all the way through lathes, milling machines, and drill presses for final machining. Those manuals are on-line and contain a wealth of industrial technical information about every facet of metalworking, electricity and electronics, radio, steam and diesel engineering, etc., but in language that boys off the farm could understand quickly and comprehensively. I sure hope that there are copies stashed in that critical human history document vault, that the Long Now Foundation (LongNow.org) is building, with a mechanical clock that will be able to run for 10,000 years with no maintenance, to be installed underground in a remote part of West Texas (kinda redundant, I know!).
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
There are also filaments that can be dissolved - they're mainly used for support structures, but could also be used for 'lost-wax' casting. From: "cctalk" To: "cctalk" Sent: Wednesday, December 19, 2018 2:31:02 PM Subject: Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update On Wed, 19 Dec 2018, Jay West wrote: > Some are casting metal parts by 3d printing molds. Besides printing molds, I have heard that there is now a filament available that can be melted out/away, for a variant of lost-wax [sandbox?] casting.
Re: OT - CNC - Re: 3D printer $179.99 (today ONLY) (Was: 8-Update
> On Dec 19, 2018, at 1:22 PM, Toby Thain via cctalk > wrote: > > Since talk has drifted to CNC, you can easily use this cheap North > American unit (Waterloo, Canada) for plotting -- it's one of their > demos. I'm tempted to get one for PCBs and other things. > > I'm not affiliated but the people behind this are great (and sometimes > hiring): > > https://sienci.com/product/sienci-mill-one-kit-v3/ > > --Toby Now we’re talking! In many ways, this would be more useful, for me than a 3D printer. I need to spend some time reading their website. Zane
Re: OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
On Wed, 19 Dec 2018, Jay West wrote: Some are casting metal parts by 3d printing molds. Besides printing molds, I have heard that there is now a filament available that can be melted out/away, for a variant of lost-wax [sandbox?] casting.
RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
> -Original Message- > From: cctalk On Behalf Of geneb via cctalk > Sent: 19 December 2018 22:17 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Re: 3D printer $179.99 (today ONLY) (Was: 8-Update > > On Wed, 19 Dec 2018, Fred Cisin via cctalk wrote: > > > On Wed, 19 Dec 2018, emanuel stiebler via cctalk wrote: > >> That's the one you recommended for my microfiche scanning ;-) They > >> just lowered the price ... > > > > In addition, how hard would it be to 3D print some parts to turn it > > into a PLOTTER? > That's actually a pretty common modification for existing 3D printers. > > > 3D print brackets for mounting a dremel, and have a cheap (crappy) CNC > mill. > > > 3D printer chassis make lousy CNC router chassis. The frame stiffness just > isn't there. (and it shouldn't be) > No I tried using my Maplin/Velleman/3Drag to route and it was pants. Some folks have allegedly used them to make PCBs but I can't believe it works well. I did use it to drill the switch holes for the Baby Baby... https://www.youtube.com/watch?v=OGcAmrFoRrY but the bed flexing didn't matter for that, but it wouldn't mill the triangle trunnions that keep the uprights upright. Dave > g. > > > -- > Proud owner of F-15C 80-0007 > http://www.f15sim.com - The only one of its kind. > http://www.diy-cockpits.org/coll - Go Collimated or Go Home. > Some people collect things for a hobby. Geeks collect hobbies. > > ScarletDME - The red hot Data Management Environment A Multi-Value > database for the masses, not the classes. > http://scarlet.deltasoft.com - Get it _today_!
Re: 3D printer $179.99 (today ONLY) (Was: 8-Update
On Wed, 19 Dec 2018, Fred Cisin via cctalk wrote: On Wed, 19 Dec 2018, emanuel stiebler via cctalk wrote: That's the one you recommended for my microfiche scanning ;-) They just lowered the price ... In addition, how hard would it be to 3D print some parts to turn it into a PLOTTER? That's actually a pretty common modification for existing 3D printers. 3D print brackets for mounting a dremel, and have a cheap (crappy) CNC mill. 3D printer chassis make lousy CNC router chassis. The frame stiffness just isn't there. (and it shouldn't be) g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!
OT RE: 3D printer $179.99 (today ONLY) (Was: 8-Update
Fred wrote... In addition, how hard would it be to 3D print some parts to turn it into a PLOTTER? --- I have not seen or done the below myself. But I have heard that there are plenty of conversion kits out there for 3d printers to do: As fred asked... https://tinyurl.com/y9d7sbwt Also... PCB creation. Some are doing pcb's by adding a small laser module to the hotend and exposing photoresist plates and then washing off all but the traces and pads. Others are mounting a conductive ink pen to the hot end and drawing the traces. Some are building thin channels for the traces, and filling them with conductive paint. Some are laser engraving or even cutting with a small (8000 mW continuous) CO2 laser, again, on the hot end. Some are casting metal parts by 3d printing molds. There are new filament materials coming out all the time. My new favorite is a wood filament. It's just wood particles in another medium, sure... but it can be sanded and will take stain. That's close enough for me! There's a reason getting a 3d printer took me away from vintage computers for a while ;) J
OT - CNC - Re: 3D printer $179.99 (today ONLY) (Was: 8-Update
On 2018-12-19 3:46 PM, Fred Cisin via cctalk wrote: > On Wed, 19 Dec 2018, emanuel stiebler via cctalk wrote: >> That's the one you recommended for my microfiche scanning ;-) >> They just lowered the price ... > > In addition, how hard would it be to 3D print some parts to turn it into > a PLOTTER? > Half a century ago, I wrote some trivial code to convert Calcomp > plotting software to Stromberg Carlson/Datagraphix. (Hint, don't > reqrite the high level functions, wait until they call the lowest level > primitives, and just write conversion for THOSE) It shouldn't be hard > to convert to STL. > > 3D print brackets for mounting a dremel, and have a cheap (crappy) CNC > mill. > Since talk has drifted to CNC, you can easily use this cheap North American unit (Waterloo, Canada) for plotting -- it's one of their demos. I'm tempted to get one for PCBs and other things. I'm not affiliated but the people behind this are great (and sometimes hiring): https://sienci.com/product/sienci-mill-one-kit-v3/ --Toby
RE: 3D printer $179.99 today ONLY (Was: 8-Update
On Wed, 19 Dec 2018, Jay West via cctalk wrote: Actually I misspoke when I said the ender 3 has design flaws. All of its flaws are in the execution of manufacturing, not in the design itself. Replace the extruder with an all-metal one instead of plastic (the plastic one cracked in a few weeks for me, so filament slippage) - cost is about $15. Drop in a borosilicate glass bed, so you can get better adhesion than the stock pad, easier removal, as well as more flexible choice of filament materials - that's about $20. Replace the z-axis rod coupler with one that actually doesn't slip - cost about $5. And while not necessary, it makes it a lot easier to get good parts if you add an automatic bed leveler - $70 (for the th3d one). THAT is useful information. One that I saw had a [3D printed] bracket for dial indicator added on for setting height.
Re: 3D printer $179.99 (today ONLY) (Was: 8-Update
On Wed, 19 Dec 2018, emanuel stiebler via cctalk wrote: That's the one you recommended for my microfiche scanning ;-) They just lowered the price ... In addition, how hard would it be to 3D print some parts to turn it into a PLOTTER? Half a century ago, I wrote some trivial code to convert Calcomp plotting software to Stromberg Carlson/Datagraphix. (Hint, don't reqrite the high level functions, wait until they call the lowest level primitives, and just write conversion for THOSE) It shouldn't be hard to convert to STL. 3D print brackets for mounting a dremel, and have a cheap (crappy) CNC mill.
RE: 3D printer $179.99 (Was: 8-Update
On Wed, 19 Dec 2018, Jay West via cctalk wrote: Gene wrote... For what you're going to use it for, that's a good choice. I wouldn't recommend it as a printer though. ;) (The design isn't bad, but it's not a very newbie-friendly printer.) - Gene, you're just sore that the $175 ender 3 is comparable to a Prusa i3 Mk3 that costs $800 (those words are from the all3dp.com reviews, not me) ;) Actually, I think you're spot on when you say it's not newbie-friendly because it requires some tinkering once it's out of the box to get great results. Another side of that is that perhaps it's the newbies that really SHOULD spend the time tinkering to get it right, so they understand what to do when their other 3d printers go awry. I suspect most of the people here are the tinkering type ;) I'm not sore at all. Out of the 12 printers I have, only one is a dirty little bed-flinger. ;) I recommended the original Prusa because it's a good design (for a dirty little bed flinger), it's a reasonably affordable choice if you can't join the Delta Hegemony, and it's newbie friendly. :) For Emmanuel's(sp?) case, the Ender 3 is a great choice because he's not going to print with it, he's just going to use it as a motion gantry for a CNC controlled microfiche imager. If I had the time (and a stack of fiche), I'd probably buy one for that purpose myself. g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!
RE: 3D printer $179.99 (Was: 8-Update
Gene wrote... For what you're going to use it for, that's a good choice. I wouldn't recommend it as a printer though. ;) (The design isn't bad, but it's not a very newbie-friendly printer.) - Gene, you're just sore that the $175 ender 3 is comparable to a Prusa i3 Mk3 that costs $800 (those words are from the all3dp.com reviews, not me) ;) Actually, I think you're spot on when you say it's not newbie-friendly because it requires some tinkering once it's out of the box to get great results. Another side of that is that perhaps it's the newbies that really SHOULD spend the time tinkering to get it right, so they understand what to do when their other 3d printers go awry. I suspect most of the people here are the tinkering type ;) Actually I misspoke when I said the ender 3 has design flaws. All of its flaws are in the execution of manufacturing, not in the design itself. Replace the extruder with an all-metal one instead of plastic (the plastic one cracked in a few weeks for me, so filament slippage) - cost is about $15. Drop in a borosilicate glass bed, so you can get better adhesion than the stock pad, easier removal, as well as more flexible choice of filament materials - that's about $20. Replace the z-axis rod coupler with one that actually doesn't slip - cost about $5. And while not necessary, it makes it a lot easier to get good parts if you add an automatic bed leveler - $70 (for the th3d one). J
Re: Off-Topic : RE: 3D printer $179.99 (Was: 8-Update
Also what drone did you buy? -Bob > On Dec 19, 2018, at 10:58 AM, emanuel stiebler via cctalk > wrote: > >> On 2018-12-19 11:35, Jay West via cctalk wrote: >> >> The 3d printer I got was the creality ender 3 that is mentioned above. >> First, you will not find a bad review for it, all the reviews are glowing. >> Most reviews also say it's print quality and print-features are on-par with >> $1000+ printers. That is correct, and I paid $175 for mine. I love it. That >> being said, the ender 3 has some design deficiencies. If you buy one, plan >> on spending maybe $50 to $100 on upgraded options right off the bat. Once >> you do that - it is a better printer than many of the big names people will >> likely recommend. > > So, would you share which upgrades you made?
Re: Off-Topic : RE: 3D printer $179.99 (Was: 8-Update
On 2018-12-19 11:35, Jay West via cctalk wrote: > The 3d printer I got was the creality ender 3 that is mentioned above. First, > you will not find a bad review for it, all the reviews are glowing. Most > reviews also say it's print quality and print-features are on-par with $1000+ > printers. That is correct, and I paid $175 for mine. I love it. That being > said, the ender 3 has some design deficiencies. If you buy one, plan on > spending maybe $50 to $100 on upgraded options right off the bat. Once you do > that - it is a better printer than many of the big names people will likely > recommend. So, would you share which upgrades you made?
Re: 3D printer $179.99 (Was: 8-Update
On Wed, 19 Dec 2018, emanuel stiebler via cctalk wrote: On 2018-12-19 10:05, geneb via cctalk wrote: On Tue, 18 Dec 2018, Fred Cisin via cctalk wrote: If you are seriously considering getting one, consider: https://www.woot.com/category/computers?ref=w_gh_cp_5 That offer is for 24 hours! Just be aware that you get what you pay for. If anyone here would like to get into 3D printing, I'd recommend one of two different printers: That's the one you recommended for my microfiche scanning ;-) They just lowered the price ... For what you're going to use it for, that's a good choice. I wouldn't recommend it as a printer though. ;) (The design isn't bad, but it's not a very newbie-friendly printer.) g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!
Off-Topic : RE: 3D printer $179.99 (Was: 8-Update
Fred wrote >> If you are seriously considering getting one, consider: >> https://www.woot.com/category/computers?ref=w_gh_cp_5 >> That offer is for 24 hours! I've had dual time-sinks the past year, a 3d printer and a high end drone :) The 3d printer I got was the creality ender 3 that is mentioned above. First, you will not find a bad review for it, all the reviews are glowing. Most reviews also say it's print quality and print-features are on-par with $1000+ printers. That is correct, and I paid $175 for mine. I love it. That being said, the ender 3 has some design deficiencies. If you buy one, plan on spending maybe $50 to $100 on upgraded options right off the bat. Once you do that - it is a better printer than many of the big names people will likely recommend. If you are wanting to get a printer and start producing production quality parts right out of the box, the ender 3 is not for you. If you are willing to tinker and upgrade just a tiny bit... you'll be really happy. J
Re: 3D printer $179.99 (Was: 8-Update
On 2018-12-19 10:05, geneb via cctalk wrote: > On Tue, 18 Dec 2018, Fred Cisin via cctalk wrote: > >> If you are seriously considering getting one, consider: >> https://www.woot.com/category/computers?ref=w_gh_cp_5 >> That offer is for 24 hours! >> > > Just be aware that you get what you pay for. If anyone here would like > to get into 3D printing, I'd recommend one of two different printers: That's the one you recommended for my microfiche scanning ;-) They just lowered the price ...
Re: 3D printer $179.99 (Was: 8-Update
On Tue, 18 Dec 2018, Fred Cisin via cctalk wrote: If you are seriously considering getting one, consider: https://www.woot.com/category/computers?ref=w_gh_cp_5 That offer is for 24 hours! Just be aware that you get what you pay for. If anyone here would like to get into 3D printing, I'd recommend one of two different printers: If you want a boring "cartesian", get a genuine Prusa i3 Mk3 from Prusa Research. If however, you want an amazing, fast, and sexy machine, get a Rostock MAX v3.2 or an Artemis 300 from SeeMeCNC. It's a "delta" configuration machine. Women will want you, men will want to BE you. (or vice versa, YMMV) ;) g. -- Proud owner of F-15C 80-0007 http://www.f15sim.com - The only one of its kind. http://www.diy-cockpits.org/coll - Go Collimated or Go Home. Some people collect things for a hobby. Geeks collect hobbies. ScarletDME - The red hot Data Management Environment A Multi-Value database for the masses, not the classes. http://scarlet.deltasoft.com - Get it _today_!
3D printer $179.99 (Was: 8-Update
If you are seriously considering getting one, consider: https://www.woot.com/category/computers?ref=w_gh_cp_5 That offer is for 24 hours! Woot is now an Amazon company; free shipping if you log in with Amazon Prime, otherwise, the shipping is $6 Amazon sells filament for them. Ender3 is apparently open source design, manufactured by numerous companies, some with enhancements. Can operate stand-alone from STL files on Micro-SD card. Assembly required. -- Grumpy Ol' Fred ci...@xenosoft.com On Mon, 17 Dec 2018, Zane Healy via cctalk wrote: Thanks Jay, I think this means I’m starting to seriously consider a printer. :-( Zane On Dec 17, 2018, at 1:31 PM, Jay Jaeger via cctalk wrote: Typically the files on Thingiverse are .STL format, which is portable 3D model. One feeds it into a slicer program (there are several to choose from) to produce GCode that uses the specifications of one's particular printer so that the right GCode gets spit out. On 12/17/2018 3:26 PM, Zane Healy via cctalk wrote: Are the files “platform independent”? I know very little about 3D printing, but have been tempted to get a printer for a while now. Though I’m worried about what my kids wanting to use it. :-) Zane -- Fred Cisin ci...@xenosoft.com XenoSofthttp://www.xenosoft.com PO Box 1236 (510) 234-3397 Berkeley, CA 94701-1236
RE: 8-Update
>I have an .slt for the PDP-8/e lever >Rod Please publish/share? paul
RE: 8-Update
Sent from Mail for Windows 10 From: Zane Healy via cctalk Sent: 17 December 2018 21:26 To: Torfinn Ingolfsen; General Discussion: On-Topic and Off-Topic Posts Subject: Re: 8-Update Are the files “platform independent”? I know very little about 3D printing, but have been tempted to get a printer for a while now. Though I’m worried about what my kids wanting to use it. :-) Zane On Dec 17, 2018, at 1:12 PM, Torfinn Ingolfsen via cctalk wrote: > > > FWIW, the easiest way to find out if somebody has made (or has tried > to make) replacement parts for anything that can be 3D-printed is to > go to thingiverse.com with your web browser. > And then search for whatever thing you need (search terms / words are > a separate subject, try as wide or as many as have time for. > When you find a part, look at pictures, comments, makes and so on to > try to figure out if this is a working part or just something somebody > has mad a 3D model of, and never tested. > Some relevant examples: > https://www.thingiverse.com/thing:360853 PDP-8 Panel Switch Toggle > https://www.thingiverse.com/thing:386762 DEC RL-02 Spindle Ground Brush > https://www.thingiverse.com/thing:2454690 PDP Stand - Mount > > HTH > On Sun, Dec 16, 2018 at 10:35 PM Al Kossow via cctalk > wrote: >> >> >> >> On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: >> >>> However I began to think would it be possible to create a close copy of an >>> 8/e out of modern parts. >> >> Redoing the CPU in obtanium TTL would be desirable. >> >> > > > -- > mvh > Torfinn I have an .slt for the PDP-8/e lever Rod
Re: 8-Update
Thanks Jay, I think this means I’m starting to seriously consider a printer. :-( Zane > On Dec 17, 2018, at 1:31 PM, Jay Jaeger via cctalk > wrote: > > Typically the files on Thingiverse are .STL format, which is portable 3D > model. One feeds it into a slicer program (there are several to choose > from) to produce GCode that uses the specifications of one's particular > printer so that the right GCode gets spit out. > > On 12/17/2018 3:26 PM, Zane Healy via cctalk wrote: >> Are the files “platform independent”? I know very little about 3D printing, >> but have been tempted to get a printer for a while now. Though I’m worried >> about what my kids wanting to use it. :-) >> >> Zane
Re: 8-Update
Typically the files on Thingiverse are .STL format, which is portable 3D model. One feeds it into a slicer program (there are several to choose from) to produce GCode that uses the specifications of one's particular printer so that the right GCode gets spit out. On 12/17/2018 3:26 PM, Zane Healy via cctalk wrote: > Are the files “platform independent”? I know very little about 3D printing, > but have been tempted to get a printer for a while now. Though I’m worried > about what my kids wanting to use it. :-) > > Zane > > > > > On Dec 17, 2018, at 1:12 PM, Torfinn Ingolfsen via cctalk > wrote: >> >> >> FWIW, the easiest way to find out if somebody has made (or has tried >> to make) replacement parts for anything that can be 3D-printed is to >> go to thingiverse.com with your web browser. >> And then search for whatever thing you need (search terms / words are >> a separate subject, try as wide or as many as have time for. >> When you find a part, look at pictures, comments, makes and so on to >> try to figure out if this is a working part or just something somebody >> has mad a 3D model of, and never tested. >> Some relevant examples: >> https://www.thingiverse.com/thing:360853 PDP-8 Panel Switch Toggle >> https://www.thingiverse.com/thing:386762 DEC RL-02 Spindle Ground Brush >> https://www.thingiverse.com/thing:2454690 PDP Stand - Mount >> >> HTH >> On Sun, Dec 16, 2018 at 10:35 PM Al Kossow via cctalk >> wrote: >>> >>> >>> >>> On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: >>> However I began to think would it be possible to create a close copy of an 8/e out of modern parts. >>> >>> Redoing the CPU in obtanium TTL would be desirable. >>> >>> >> >> >> -- >> mvh >> Torfinn > >
Re: 8-Update
Are the files “platform independent”? I know very little about 3D printing, but have been tempted to get a printer for a while now. Though I’m worried about what my kids wanting to use it. :-) Zane On Dec 17, 2018, at 1:12 PM, Torfinn Ingolfsen via cctalk wrote: > > > FWIW, the easiest way to find out if somebody has made (or has tried > to make) replacement parts for anything that can be 3D-printed is to > go to thingiverse.com with your web browser. > And then search for whatever thing you need (search terms / words are > a separate subject, try as wide or as many as have time for. > When you find a part, look at pictures, comments, makes and so on to > try to figure out if this is a working part or just something somebody > has mad a 3D model of, and never tested. > Some relevant examples: > https://www.thingiverse.com/thing:360853 PDP-8 Panel Switch Toggle > https://www.thingiverse.com/thing:386762 DEC RL-02 Spindle Ground Brush > https://www.thingiverse.com/thing:2454690 PDP Stand - Mount > > HTH > On Sun, Dec 16, 2018 at 10:35 PM Al Kossow via cctalk > wrote: >> >> >> >> On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: >> >>> However I began to think would it be possible to create a close copy of an >>> 8/e out of modern parts. >> >> Redoing the CPU in obtanium TTL would be desirable. >> >> > > > -- > mvh > Torfinn
Re: 8-Update
FWIW, the easiest way to find out if somebody has made (or has tried to make) replacement parts for anything that can be 3D-printed is to go to thingiverse.com with your web browser. And then search for whatever thing you need (search terms / words are a separate subject, try as wide or as many as have time for. When you find a part, look at pictures, comments, makes and so on to try to figure out if this is a working part or just something somebody has mad a 3D model of, and never tested. Some relevant examples: https://www.thingiverse.com/thing:360853 PDP-8 Panel Switch Toggle https://www.thingiverse.com/thing:386762 DEC RL-02 Spindle Ground Brush https://www.thingiverse.com/thing:2454690 PDP Stand - Mount HTH On Sun, Dec 16, 2018 at 10:35 PM Al Kossow via cctalk wrote: > > > > On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: > > > However I began to think would it be possible to create a close copy of an > > 8/e out of modern parts. > > Redoing the CPU in obtanium TTL would be desirable. > > -- mvh Torfinn
was...Re: 8-Update NOW I would like to get one of the little boards with the pdp 8 on a microprocessor that is a little single board computer too... for the museum but also to play
I would like to get one of the little boards with the pdp 8 on a microprocessor that is a little single board computer too... for the museum but also to play with... In a message dated 12/16/2018 12:38:35 PM US Mountain Standard Time, cctalk@classiccmp.org writes: On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: > However I began to think would it be possible to create a close copy of an > 8/e out of modern parts. Redoing the CPU in obtanium TTL would be desirable.
Re: 8-Update
On 12/16/18 1:14 AM, Paul Birkel via cctalk wrote: I don't have a 3D printer, Check out the "Ender3" series. Open source design, multiple manufacturers (some with enhancements), and starting at just over $200 ! Can connect to computer, or stand-alone, working from content on micro-SD card.
Re: 8-Update
On 12/15/18 11:36 PM, Rod G8DGR via cctalk wrote: > However I began to think would it be possible to create a close copy of an > 8/e out of modern parts. Redoing the CPU in obtanium TTL would be desirable.
Re: 8-Update
On 12/16/18 1:14 AM, Paul Birkel via cctalk wrote: I don't have a 3D printer, I've found that maker spaces and some computer stores (notably Microcenter) have 3D printers and seem quite happy to help people use them. (Membership, training, feeds not withstanding.) I've also heard of some 3D printer owners printing things and mailing them to people. I know a guy who knows people. If you want help. -- Grant. . . . unix || die
RE: 8-Update
>-Original Message- >-From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rod G8DGR >via cctalk >-Sent: Sunday, December 16, 2018 2:36 AM >-To: General Discussion: On-Topic and Off-Topic Posts >-Subject: 8-Update > >Sheesh!! >Well what a response. >This stems from my (so far) successful major over haul of my PDP-8/e. >I found one failed 7474 and one failed 8881 – replaced and now working. >I think I have the rim loader toggled in and will attempt to send a paper tape >image from Hyperterm >Strangely I do have at least three genuine complete 4k memory sets. > >The eightstoration will continue. > >However I began to think would it be possible to create a close copy of an >8/e out of modern parts. >As you all know I make front panels so that’s not a problem. >I did manage to copy my (distorted) bezel in resin. >A friend has been able to 3D print toggle switch leavers that fit and work. >... Could you (or your fried) tell us more about "A friend has been able to 3D print toggle switch leavers that fit and work"? I have need to do the same :-<. And I don't have a 3D printer, either. paul
8-Update
Sheesh!! Well what a response. This stems from my (so far) successful major over haul of my PDP-8/e. I found one failed 7474 and one failed 8881 – replaced and now working. I think I have the rim loader toggled in and will attempt to send a paper tape image from Hyperterm Strangely I do have at least three genuine complete 4k memory sets. The eightstoration will continue. However I began to think would it be possible to create a close copy of an 8/e out of modern parts. As you all know I make front panels so that’s not a problem. I did manage to copy my (distorted) bezel in resin. A friend has been able to 3D print toggle switch leavers that fit and work. Vince Sylngstat has done a console board PCB layout. Power supply clearly not a problem. So what’s left? Case? Well I have one of those and I suspect a sheet metal shop would not have a problem Finally the big one – Omnibus and the connectors its made from. A 3D printing candidate? I’m going to autopsy a busted connector and see how they are constructed inside. Objectives The basic board set as original. M8300, M8310, M8320 etc. Same form factor Plug compatible – but board contents can differ from original The idea is replace one item at time until you no longer have any DEC parts. Yup a FAKE-8 I may even need a label “No part in this PDP-8/e computer was manufactured by digital equipment corporation” Rod Smallwood digital equipment corporation 1975-1985 Sent from Mail for Windows 10
PDP-8/ update
Well I got there in the end. HyperTerm on an old DEC Celebris running W95 Thanks for all the input Now to move some diags. over and see if we can load them Rod Sent from Mail for Windows 10
