I was just going to comment that if you have to circular mill then the
initial use of a drill might be faster and safer.
Dave
On 4/14/20 4:03 PM, John Dammeyer wrote:
So if I don't have a center cutting end mill then it's probably a good idea to
drill a hole so that the overlap criteria can
So if I don't have a center cutting end mill then it's probably a good idea to
drill a hole so that the overlap criteria can be met? I guess plan the hole in
the CNC part drawing?
> -Original Message-
> From: dave engvall [mailto:dengv...@charter.net]
> Sent: April-14-20 11:37 AM
> To:
Yikes.
> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: April-14-20 12:05 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>
> Or... Thinking the mill is carbide but it isn't...
>
>
On 04/14/2020 12:48 PM, John Dammeyer wrote:
Thanks. The last bit of LinuxCNC milling with a 6mm carbide plunging into HRS
broke two of them. I'm really not doing this right yet. So any examples of
feeds, speeds and coolant are really helpful.
If the end mill is center-cutting, then you
Or... Thinking the mill is carbide but it isn't...
http://electronicsam.com/images/KandT/huh_not_carbide.jpg
On Tue, Apr 14, 2020, 1:44 PM dave engvall wrote:
> IIRC a full dia plunge with a non-center cutting end mill is an
> experiment in friction welding. ;-)
>
> Dave
>
> On 4/14/20 11:31
IIRC a full dia plunge with a non-center cutting end mill is an
experiment in friction welding. ;-)
Dave
On 4/14/20 11:31 AM, andy pugh wrote:
On Tue, 14 Apr 2020 at 19:26, John Dammeyer wrote:
And I don't think one should plunge into HRS with a 4 flute mill.
Was it a centre-cutting mill?
I've never had much luck with plunging end mills full dia. Probably
works better with HSS , not so brittle. However, I plunge cut at 40%
overlap and 15 - 18 ipm at 2200 with .25 carbide. Get fair life doing
that. On the same rather flexible mill using a 1/2" rougher I'm good for
.1" radial
On Tue, 14 Apr 2020 at 19:26, John Dammeyer wrote:
> And I don't think one should plunge into HRS with a 4 flute mill.
Was it a centre-cutting mill? 4-flute ones often are not.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical
> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
>
> we have various forms of these type calculators that seem to work well
>
> https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-
>
we have various forms of these type calculators that seem to work well
https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M
On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer
wrote:
> Thanks. The last
Thanks. The last bit of LinuxCNC milling with a 6mm carbide plunging into HRS
broke two of them. I'm really not doing this right yet. So any examples of
feeds, speeds and coolant are really helpful.
John Dammeyer
> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
>
sorry - forgot a few things.. The mill was a resharpened at about .47".
(why it took 2 tries to get the size where I wanted it) the timing gear
was aluminum.
On Tue, Apr 14, 2020 at 12:26 PM Ed wrote:
> On 4/14/20 9:53 AM, Sam Sokolik wrote:
> > now to upgrade the spindle encoder...
> >
> >
On 4/14/20 9:53 AM, Sam Sokolik wrote:
now to upgrade the spindle encoder...
https://youtu.be/VmWeXS6y-lg
On Fri, Apr 10, 2020 at 9:00 PM andy pugh wrote:
On Sat, 11 Apr 2020 at 02:50, Ed wrote:
I'm thinking gear hobs or single cutters.
I have been thinking of making gear hobs this way
Doing one off things like this I am very conservative.. It was a spiral
plunge at 6ipm at 2000rpm. 4 flute hhs (The k maxes out at 3000rpm)
(it originally maxed out at 2400rpm)
On Tue, Apr 14, 2020, 12:17 PM John Dammeyer wrote:
> Nice job so far. I was wondering how you were going to add
Nice job so far. I was wondering how you were going to add higher res to the
mill.
What feed, what size mill bit (looked like 3 flute carbide?) and what spindle
rpm did you use to mill the hole? Was it steel or aluminium?
Thanks
John Dammeyer
> -Original Message-
> From: Sam Sokolik
On Tue, 14 Apr 2020 at 12:02, andrew beck wrote:
> I don't quite understand if the carousel component can interlock the motors
> so I don't turn both fwd and rev contactors on at the same time for
> example. I have been told that the contactors make a quite nice BOOM when
> that happens lol. I
now to upgrade the spindle encoder...
https://youtu.be/VmWeXS6y-lg
On Fri, Apr 10, 2020 at 9:00 PM andy pugh wrote:
> On Sat, 11 Apr 2020 at 02:50, Ed wrote:
>
> > I'm thinking gear hobs or single cutters.
>
> I have been thinking of making gear hobs this way for a while. What
> holds me back
just checked out that carousel component that you wrote andy. It looks
very usefull and I will probably use it for my slant bed cnc lathe that I
am going to retrofit next. At this stage I would still like to use classic
ladder for my toolchanger as I have most of it sussed now and I think it is
oops sorry Andy!
I made that big email replying to you guys and referencing the wiki page
but didn't link it lol.
here it is..
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ToolChange
regards
Andrew
On Tue, Apr 14, 2020 at 10:47 PM andrew beck
wrote:
> I saw the Hal component that you wrote
I saw the Hal component that you wrote Andy. My toolchanger doesn't
require Z axis movements to work the toolchanger which is why I thought I
would use classic ladder.. But I'm fine with whatever works.. I'm
starting to like classic ladder now and it's easy to interlock all my
motors and
On Tue, 14 Apr 2020 at 05:10, andrew beck wrote:
> To actually get this to work, my classic ladder would have a counter set up
> triggering as each pocket goes past the sensor.
I will get back to your main points later, but there is a HAL
component that can do much of the work here:
On Tue, 14 Apr 2020 at 05:10, andrew beck wrote:
> here is what is in the wiki
Which Wiki page?
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution
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