Re: [kicad-users] Re: Toaster oven soldering
oops, meant to reply direct ... sorry!Tracy- Original Message From: Tracy Markham <[EMAIL PROTECTED]>To: kicad-users@yahoogroups.comSent: Saturday, May 13, 2006 12:00:59 PMSubject: Re: [kicad-users] Re: Toaster oven solderingI am replying direct.Thank youfor your response - I've been on another project and haven't checked the responses, sorry I took so long and tHANK YOU for your offer!!You can send it to this email address, and if you would give me aa very brief direction to add it to the library, or where in the manual I can find instructions.Thank you again, these are the exact chips I want to play with!! AD9959, 18F4550 etc.Have you looked at the chips from Skyworks? GREAT stuff!!! I found a 5 bit 32db attenuator from DC-2GHz -http://www.skyworksinc.com/products_detailpop2.asp?pid=1457Thank you again and I look forward to seeing if I can make a board that is basically going to be a signal generator for aligningg radio receivers. I've figured out how to get it down to -150 dbm, and I think I've got it isolated so there is less than one db 'blow by' on each stage.Tracy Markham- Original Message From: Dan Andersson <[EMAIL PROTECTED]>To: kicad-users@yahoogroups.comSent: Sunday, May 7, 2006 7:06:52 AMSubject: Re: [kicad-users] Re: Toaster oven soldering On Sunday 07 May 2006 11:17, Danilo Uccelli wrote: > 2006/5/6, Tracy <[EMAIL PROTECTED]>: > > I still can't find a TQFP44 footprint for pcbnew. > > Tracy N4LGH > > You can try this one, I have reduced the TQFP64_08 that I use but I have > no 44pins body at home to check it. > > The file is an export (.EMP), you can use the "Kicad module editor" to > import it, an place it into your favorite module library. > > Let me know if is suitable and I will put it on my site > http://kicadlib.site.voila.fr > > HTH > -- > Danilo Uccelli > CH-2400 Le Locle > [EMAIL PROTECTED] I have a number of new modules that I use, mostly Analog Devices chips. AD9851 AD9951 AD9954 AD9854 AD9858 AD8302 AD8343 MMIC PIC16F877A ( TQFP44 ) PIC16F877 ( 40 DIP ) Some coils/transformers from CoilCraft I have not bothered with any 3D drawings of these. If there are any interest, tell me where and how to send these lib modules. There will be some more modules generated during the next few weeks, mostly RF and PC oriented as I'm starting up a couple of new designs. Cheers Dan Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software
Re: [kicad-users] Re: Toaster oven soldering
I am replying direct.Thank youfor your response - I've been on another project and haven't checked the responses, sorry I took so long and tHANK YOU for your offer!!You can send it to this email address, and if you would give me aa very brief direction to add it to the library, or where in the manual I can find instructions.Thank you again, these are the exact chips I want to play with!! AD9959, 18F4550 etc.Have you looked at the chips from Skyworks? GREAT stuff!!! I found a 5 bit 32db attenuator from DC-2GHz -http://www.skyworksinc.com/products_detailpop2.asp?pid=1457Thank you again and I look forward to seeing if I can make a board that is basically going to be a signal generator for aligningg radio receivers. I've figured out how to get it down to -150 dbm, and I think I've got it isolated so there is less than one db 'blow by' on each stage.Tracy Markham- Original Message From: Dan Andersson <[EMAIL PROTECTED]>To: kicad-users@yahoogroups.comSent: Sunday, May 7, 2006 7:06:52 AMSubject: Re: [kicad-users] Re: Toaster oven soldering On Sunday 07 May 2006 11:17, Danilo Uccelli wrote: > 2006/5/6, Tracy <[EMAIL PROTECTED]>: > > I still can't find a TQFP44 footprint for pcbnew. > > Tracy N4LGH > > You can try this one, I have reduced the TQFP64_08 that I use but I have > no 44pins body at home to check it. > > The file is an export (.EMP), you can use the "Kicad module editor" to > import it, an place it into your favorite module library. > > Let me know if is suitable and I will put it on my site > http://kicadlib.site.voila.fr > > HTH > -- > Danilo Uccelli > CH-2400 Le Locle > [EMAIL PROTECTED] I have a number of new modules that I use, mostly Analog Devices chips. AD9851 AD9951 AD9954 AD9854 AD9858 AD8302 AD8343 MMIC PIC16F877A ( TQFP44 ) PIC16F877 ( 40 DIP ) Some coils/transformers from CoilCraft I have not bothered with any 3D drawings of these. If there are any interest, tell me where and how to send these lib modules. There will be some more modules generated during the next few weeks, mostly RF and PC oriented as I'm starting up a couple of new designs. Cheers Dan Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
Dan Andersson wrote: > To bring KiCad forward I think it's useful to sit down and really make up a > couple of sets of footprints , a variant for each soldering methodology if > special requirements are needed for max reliability. Perhaps the next step would be to find a good source for footprint specifications. A good source should probably have at least the following characteristics: - the material is readily available and understandable (downloadable from the Internet, no registration or such, PDF or similar, English) - obviously, the quality of the material should be trustworthy and it should be properly classified (so I wouldn't just go and convert some random footprint library) - the collection should be comprehensive (this should also help to get some uniformity into the specifications) - ideally, the collection of specifications would be archivable or have very long-lived URLs, so that questionable footprints can be verified Another pitfall is that some components in standard packages have non-standard footprints. Here's a fun example: http://rocky.digikey.com/WebLib/Littelfuse/Web%20Data/ML%20Series.pdf Similarly, a set of specifications for the actual packages would be useful, to produce the 3D images. > As KiCad is a GPL package, I think it's important to give the homebrewers a > decent possibility to use cheaper soldering tools than the reflow systems > widely used for commercial purposes. Yes, please :-) There's a lot more possible with household means than most people seem to believe. Then there's the question of the most useful representation. While graphical tools, such as the module editor, are great for ah hoc design and for inspection, a tool that takes textual specifications (probably in the form of equations or maybe some simple program/script) and produces the corresponding list of rectangles may be more suitable for this task. - Werner -- _ / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] / /_http://www.almesberger.net// Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
Javier Alberola wrote: > You are right. I suppose that there is no problem with thru-hole modules, For manually produced boards, there might be. E.g., manual drilling often needs relatively large holes/pins. In Pcb, I had to enlarge most pins by 10-20 mil to get something usable. I have hardly used through-hole components with Kicad, but they generally seem to have more copper than in Pcb. > but the SMD modules of Kicad, are they for reflow soldering or for wave > soldering? I think it's a colorful mixture :-) If you place a component, particularly one with few pins (< 8), and you have lots of pad left around it/its legs, you have a wave footprint. If the pads only leave little space around the legs, it's probably reflow. I don't know what happens if you solder a board designed for the respective "other" technology, but I would expect wave soldering to be considerably less forgiving than reflow soldering. - Werner -- _ / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] / /_http://www.almesberger.net// Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
You are right. I suppose that there is no problem with thru-hole modules, but the SMD modules of Kicad, are they for reflow soldering or for wave soldering? I'm concerned about that becouse we are going to produce the board soon... Original Message Follows From: Werner Almesberger <[EMAIL PROTECTED]> Reply-To: kicad-users@yahoogroups.com To: kicad-users@yahoogroups.com Subject: Re: [kicad-users] Re: Toaster oven soldering Date: Mon, 8 May 2006 09:15:36 -0300 Dan Andersson wrote: > I might have tweaked the pads a bit to increase the ease of soldering I'm wondering if it wouldn't make sense to also classify components (modules) by the soldering technique assumed for their footprints. E.g., wave soldering footprints tend to look very different from reflow soldering ones, and manual soldering can introduce other constraints. Here's a random example for how much footprints for the same package can differ: http://www.standardics.philips.com/support/documents/logic/pdf/an248.pdf - Werner -- _ / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] / /_http://www.almesberger.net// Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
On Monday 08 May 2006 13:15, Werner Almesberger wrote: > Dan Andersson wrote: > > I might have tweaked the pads a bit to increase the ease of soldering > > I'm wondering if it wouldn't make sense to also classify > components (modules) by the soldering technique assumed > for their footprints. E.g., wave soldering footprints > tend to look very different from reflow soldering ones, > and manual soldering can introduce other constraints. > > Here's a random example for how much footprints for the > same package can differ: > http://www.standardics.philips.com/support/documents/logic/pdf/an248.pdf > > - Werner > > -- > > Werner, I agree with what you write about the footprints. I normally avoid any tweaking of footprints unless I'm lacking the exact variant I require. During my 25 years in microelectronics I have always tried to explain to engineers about components and their datasheets when they attempt to create variants of - for example, footprints. // The microelectronics industry have been spending a fortune in creating packages and the footprints for both commercial, domestic and high rel use. It have to be areal genius to come up with any improvements on these thoroughly tested and specified footprints. As up today, I have not meet this genius... // To bring KiCad forward I think it's useful to sit down and really make up a couple of sets of footprints , a variant for each soldering methodology if special requirements are needed for max reliability. As KiCad is a GPL package, I think it's important to give the homebrewers a decent possibility to use cheaper soldering tools than the reflow systems widely used for commercial purposes. With a "pure" high priced commercial package I don't think it's necessary but both KiCad and LINUX GEDA are widely used by hobbyists. I don't like to name Eagle here because of the limited hobby version of theirs plus a stupid price in the UK. This reason alone might call for a set of "tweaked" footprints... Without wanting to go further downwards the path to the bellybutton studies, I still think it's due time to spend some philosofical moments on the package issue... Cheers Dan Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
RE: [kicad-users] Re: Toaster oven soldering
I'm sorry I may be late on this but the TQFP package can be found in the Xilinx library as a VQFP44. The layout is the same the difference is the physical package is thinner. AndyE From: kicad-users@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Dan AnderssonSent: Saturday, May 06, 2006 12:40 PMTo: kicad-users@yahoogroups.comSubject: Re: [kicad-users] Re: Toaster oven soldering There are also problems with some components. If you get samples from some suppliers of chips, you might get samples taken before the final burn-in procedure. This means you might have moisture in the chips. These chips need to be "baked" in 125C for 24 hours before reflow soldering.The simplest and yet safest ( also cheapest ) way to solder SMD is by using a hit air soldering iron. You can rather easily build these yourself from an old 40 - 60 W soldering iron, an aquarium air pump and some tubing materials.Some use a modifyed desoldering iron from Radio Shack - 10.49 $ worth of soldering iron and then adding the airflow.This works absolutely wonderful in combination of pre-heating the PCB to 100C or so.CheersDan / M0DFIOn Saturday 06 May 2006 18:19, Tracy wrote:> --- In kicad-users@yahoogroups.com, "Ehlers, William \(ES\)">> <[EMAIL PROTECTED]> wrote:> > Before you do this I would go back to the datasheet. You will end up> > destroying the device if not the board.>> Have anyone here actually done this? I have searched and a lot of> robotics guys do it this way. I checked the data sheets of all the> components I am planning on using and they can handle wayyy higher> heat than I plan to use.>> Moisture in the board, good precaustion, I can see where that might be> a problem in home etched boards on suplus board material.>> I still can't find a TQFP44 footprint for pcbnew.> Tracy N4LGH>>>>>>>>> Please read the Kicad FAQ in the group files section before posting your> question. Please post your bug reports here. They will be picked up by the> creator of Kicad. Please contribute your symbols/modules to the library> folder in the group files section. For building Kicad from source and other> development questions visit the kicad-devel group at> http://groups.yahoo.com/group/kicad-devel>>>>> SPONSORED LINKS> Open source software Symbol software Symbols> Open source>>> YAHOO! GROUPS LINKS>>> Visit your group "kicad-users" on the web.> > To unsubscribe from this group, send an email to:> [EMAIL PROTECTED]> > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
Dan Andersson wrote: > I might have tweaked the pads a bit to increase the ease of soldering I'm wondering if it wouldn't make sense to also classify components (modules) by the soldering technique assumed for their footprints. E.g., wave soldering footprints tend to look very different from reflow soldering ones, and manual soldering can introduce other constraints. Here's a random example for how much footprints for the same package can differ: http://www.standardics.philips.com/support/documents/logic/pdf/an248.pdf - Werner -- _ / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] / /_http://www.almesberger.net// Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[kicad-users] Re: Toaster oven soldering
Yahoo strips attachments from messages that are read on the web. I understand that people receiving individual emails or digests do get them. Those of us who don't never see them. Regards, Bob --- In kicad-users@yahoogroups.com, "Danilo Uccelli" <[EMAIL PROTECTED]> wrote: > > > You can try this one, I have reduced the TQFP64_08 that I use but I have no > 44pins body at home to check it. > > The file is an export (.EMP), you can use the "Kicad module editor" to > import it, an place it into your favorite module library. > > Let me know if is suitable and I will put it on my site > http://kicadlib.site.voila.fr > > HTH > -- > Danilo Uccelli > CH-2400 Le Locle > [EMAIL PROTECTED] > Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
On Sunday 07 May 2006 11:17, Danilo Uccelli wrote: > 2006/5/6, Tracy <[EMAIL PROTECTED]>: > > I still can't find a TQFP44 footprint for pcbnew. > > Tracy N4LGH > > You can try this one, I have reduced the TQFP64_08 that I use but I have > no 44pins body at home to check it. > > The file is an export (.EMP), you can use the "Kicad module editor" to > import it, an place it into your favorite module library. > > Let me know if is suitable and I will put it on my site > http://kicadlib.site.voila.fr > > HTH > -- > Danilo Uccelli > CH-2400 Le Locle > [EMAIL PROTECTED] Here is my AD9951 footprint. It's an Analoge Devices DDS with TQFP44. I might have tweaked the pads a bit to increase the ease of soldering but it works OK for the AD9951 and AD9954 chips and they are both TQFP44. Also, try the VQFP44, might be the same measures? Dan / M0DFI TQFP44.emp - Snip here --- PCBNEW-LibModule-V1 7/5/2006-10:52:18 $INDEX IC3 $EndINDEX $MODULE IC3 Po 0 0 0 15 43AC4F53 445DD13D ~~ Li IC3 Sc 445DD13D Op 0 0 0 T0 98 -3642 600 600 0 120 N V 21 "IC3" T1 197 3543 600 600 0 120 N V 21 "AD9954" DC -1181 -1181 -1280 -1280 39 21 DS -1378 -1378 1378 -1378 39 21 DS 1378 -1378 1378 1378 39 21 DS 1378 1378 -1378 1378 39 21 DS -1378 1378 -1378 -1378 39 21 $PAD Sh "1" R 87 787 0 0 900 Dr 0 0 0 At SMD N 00888000 Ne 18 "N-19" Po -1772 -1083 $EndPAD Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
On Sunday 07 May 2006 11:17, Danilo Uccelli wrote: > 2006/5/6, Tracy <[EMAIL PROTECTED]>: > > I still can't find a TQFP44 footprint for pcbnew. > > Tracy N4LGH > > You can try this one, I have reduced the TQFP64_08 that I use but I have > no 44pins body at home to check it. > > The file is an export (.EMP), you can use the "Kicad module editor" to > import it, an place it into your favorite module library. > > Let me know if is suitable and I will put it on my site > http://kicadlib.site.voila.fr > > HTH > -- > Danilo Uccelli > CH-2400 Le Locle > [EMAIL PROTECTED] I have a number of new modules that I use, mostly Analog Devices chips. AD9851 AD9951 AD9954 AD9854 AD9858 AD8302 AD8343 MMIC PIC16F877A ( TQFP44 ) PIC16F877 ( 40 DIP ) Some coils/transformers from CoilCraft I have not bothered with any 3D drawings of these. If there are any interest, tell me where and how to send these lib modules. There will be some more modules generated during the next few weeks, mostly RF and PC oriented as I'm starting up a couple of new designs. Cheers Dan Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
2006/5/6, Tracy <[EMAIL PROTECTED]>: I still can't find a TQFP44 footprint for pcbnew.Tracy N4LGH You can try this one, I have reduced the TQFP64_08 that I use but I have no 44pins body at home to check it. The file is an export (.EMP), you can use the "Kicad module editor" to import it, an place it into your favorite module library. Let me know if is suitable and I will put it on my site http://kicadlib.site.voila.fr HTH-- Danilo UccelliCH-2400 Le Locle[EMAIL PROTECTED] Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. TQFP44_08.emp Description: Binary data
Re: [kicad-users] Re: Toaster oven soldering
There are also problems with some components. If you get samples from some suppliers of chips, you might get samples taken before the final burn-in procedure. This means you might have moisture in the chips. These chips need to be "baked" in 125C for 24 hours before reflow soldering. The simplest and yet safest ( also cheapest ) way to solder SMD is by using a hit air soldering iron. You can rather easily build these yourself from an old 40 - 60 W soldering iron, an aquarium air pump and some tubing materials. Some use a modifyed desoldering iron from Radio Shack - 10.49 $ worth of soldering iron and then adding the airflow. This works absolutely wonderful in combination of pre-heating the PCB to 100C or so. Cheers Dan / M0DFI On Saturday 06 May 2006 18:19, Tracy wrote: > --- In kicad-users@yahoogroups.com, "Ehlers, William \(ES\)" > > <[EMAIL PROTECTED]> wrote: > > Before you do this I would go back to the datasheet. You will end up > > destroying the device if not the board. > > Have anyone here actually done this? I have searched and a lot of > robotics guys do it this way. I checked the data sheets of all the > components I am planning on using and they can handle wayyy higher > heat than I plan to use. > > Moisture in the board, good precaustion, I can see where that might be > a problem in home etched boards on suplus board material. > > I still can't find a TQFP44 footprint for pcbnew. > Tracy N4LGH > > > > > > > > > Please read the Kicad FAQ in the group files section before posting your > question. Please post your bug reports here. They will be picked up by the > creator of Kicad. Please contribute your symbols/modules to the library > folder in the group files section. For building Kicad from source and other > development questions visit the kicad-devel group at > http://groups.yahoo.com/group/kicad-devel > > > > > SPONSORED LINKS > Open source software Symbol software Symbols > Open source > > > YAHOO! GROUPS LINKS > > > Visit your group "kicad-users" on the web. > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[kicad-users] Re: Toaster oven soldering
--- In kicad-users@yahoogroups.com, "Ehlers, William \(ES\)" <[EMAIL PROTECTED]> wrote: > > Before you do this I would go back to the datasheet. You will end up > destroying the device if not the board. Have anyone here actually done this? I have searched and a lot of robotics guys do it this way. I checked the data sheets of all the components I am planning on using and they can handle wayyy higher heat than I plan to use. Moisture in the board, good precaustion, I can see where that might be a problem in home etched boards on suplus board material. I still can't find a TQFP44 footprint for pcbnew. Tracy N4LGH Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[kicad-users] Re: Toaster oven soldering
--- In kicad-users@yahoogroups.com, hiroshi <[EMAIL PROTECTED]> wrote: > > It's intersting ! I googled "Reflow Soldering Oven toaster" and got many > pages how to do with pictures with out any pay. > I printed those pages and now start to read those pages. > Another resource can be found here: http://groups.yahoo.com/group/E-Z_Bake It's a very inactive group but the message archive and other sections of it have quite a bit of information. Regards, Bob Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] Re: Toaster oven soldering
It's intersting ! I googled "Reflow Soldering Oven toaster" and got many pages how to do with pictures with out any pay. I printed those pages and now start to read those pages. Remy wrote: >Maybe something interesting there? >http://www.elektor-electronics.co.uk/Default.aspx?tabid=27&year=2006&month=-1&art=52955&PN=On > > > > > >--- In kicad-users@yahoogroups.com, "Ehlers, William \(ES\)" ><[EMAIL PROTECTED]> wrote: > > >>Before you do this I would go back to the datasheet. You will end up >>destroying the device if not the board. My suggestion would be to find a >>local company in your area (if one exists) and give one of the >>assemblers a few bucks to do it for you. If not there are a few >>prototype assembly houses out there for just that purpose and will >>probably cost you the same as going through the boards and / or parts >>your going to destroy in an oven. Although in theory it sounds good, in >>application your asking for trouble. >> >>AndyE >> >> >> > > > > > >Please read the Kicad FAQ in the group files section before posting your question. >Please post your bug reports here. They will be picked up by the creator of Kicad. >Please contribute your symbols/modules to the library folder in the group files section. >For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel >Yahoo! Groups Links > > > > > > > > > > Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[kicad-users] Re: Toaster oven soldering
Maybe something interesting there? http://www.elektor-electronics.co.uk/Default.aspx?tabid=27&year=2006&month=-1&art=52955&PN=On --- In kicad-users@yahoogroups.com, "Ehlers, William \(ES\)" <[EMAIL PROTECTED]> wrote: > > Before you do this I would go back to the datasheet. You will end up > destroying the device if not the board. My suggestion would be to find a > local company in your area (if one exists) and give one of the > assemblers a few bucks to do it for you. If not there are a few > prototype assembly houses out there for just that purpose and will > probably cost you the same as going through the boards and / or parts > your going to destroy in an oven. Although in theory it sounds good, in > application your asking for trouble. > > AndyE > Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [kicad-users] RE: Toaster oven soldering
Hiroshi, I tend to agree with Andy on this. A reflow oven is an intelligent convection zone oven where you have pre heating phase, reflow phase and a coling phase. Good reflow ovens continuously measure the surface temp of the tinned PCB for a quality solder process. Still, the chips needs special treatment before the reflow process and you will also need a good quality FR4 PCB base material WITHOUT any embedded moisture. This is partly why you need to pre heat the parts. I still think it's a good idea to have the parts mounted/assembled by a proto assembly house - even if you have to send the parts away. Shipping from Japan to Taiwan should not endanger any reexport regs but watch out before you ship something clever to China as you might need an export license from the US, if the chips are slightly exotic that is! Dan On Thursday 27 April 2006 16:56, Ehlers, William (ES) wrote: > Before you do this I would go back to the datasheet. You will end up > destroying the device if not the board. My suggestion would be to find a > local company in your area (if one exists) and give one of the > assemblers a few bucks to do it for you. If not there are a few > prototype assembly houses out there for just that purpose and will > probably cost you the same as going through the boards and / or parts > your going to destroy in an oven. Although in theory it sounds good, in > application your asking for trouble. > > AndyE Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[kicad-users] RE: Toaster oven soldering
Before you do this I would go back to the datasheet. You will end up destroying the device if not the board. My suggestion would be to find a local company in your area (if one exists) and give one of the assemblers a few bucks to do it for you. If not there are a few prototype assembly houses out there for just that purpose and will probably cost you the same as going through the boards and / or parts your going to destroy in an oven. Although in theory it sounds good, in application your asking for trouble. AndyE Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please contribute your symbols/modules to the library folder in the group files section. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-devel SPONSORED LINKS Open source software Symbol software Symbols Open source YAHOO! GROUPS LINKS Visit your group "kicad-users" on the web. To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
