Search found 47 matches

by jhllt67
Fri Oct 04, 2013 11:05 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Large Format Fabric Cutter
Replies: 15
Views: 15159

Re: Large Format Fabric Cutter

Wow that is a beautiful machine. Very nice design.
Good idea on the old PC case for the electronics too.
by jhllt67
Tue May 28, 2013 12:14 pm
Forum: Discussion
Topic: Pockets > Some »rounds «a little bit too deep
Replies: 10
Views: 1701

Re: Pockets > Some »rounds «a little bit too deep

Changing $5 won't affect your steps/ mm, so as long they were correct before you won't need to change them ( I don't remember the settings off hand but they seem to be in the right range)
by jhllt67
Tue May 28, 2013 12:43 am
Forum: Discussion
Topic: Pockets > Some »rounds «a little bit too deep
Replies: 10
Views: 1701

Re: Pockets > Some »rounds «a little bit too deep

I meant the speed set by "default seek" ($5) in grbl. That controls the G0 speed when your Z axis raises up after a cut (you can't directly control it from Cambam). Unfortunately the current grbl uses the same speeds and accelerations for all axes as Will said. I think I used to have my "default see...
by jhllt67
Mon May 27, 2013 3:57 pm
Forum: Discussion
Topic: Pockets > Some »rounds «a little bit too deep
Replies: 10
Views: 1701

Re: Pockets > Some »rounds «a little bit too deep

My guess is you are loosing steps on your Z axis, probably when it retracts. This would lead to the next cut being deeper than it is supposed to be. Slowing down the rapid speeds should help if that is culprit.
by jhllt67
Mon May 06, 2013 2:33 am
Forum: Discussion
Topic: Aluminum
Replies: 20
Views: 6152

Re: Aluminum

I have been cutting a lot of 1/4" 6061 lately and have had good results with the standard 1/8" 2 flute carbide end mills that I use for everything else (the ones from eBay seller drillman1). I did buy one of the Destiny Viper end mills that I.C. mentioned but it didn't really seem to be any better t...
by jhllt67
Fri Mar 29, 2013 1:34 am
Forum: Design Ideas
Topic: Is this thing even a Shapeoko anymore?
Replies: 42
Views: 14079

Re: Is this thing even a Shapeoko anymore?

Very nice design, looks really rigid. Fast too.
by jhllt67
Sun Feb 10, 2013 1:29 am
Forum: Design Ideas
Topic: Hand adjusting Z
Replies: 7
Views: 1370

Re: Hand adjusting Z

I use the tap handle for the M5 tap used when building the Shapeoko. I got the idea from someone on these forums, can't remember who. Works really well and chances are you already have one.
by jhllt67
Tue Jan 29, 2013 1:46 am
Forum: Design Ideas
Topic: Acme thread Z axis with a zero backlash nut
Replies: 5
Views: 5196

Re: Acme thread Z axis with a zero backlash nut

Hi, I chose the 3/8 - 8 thread per inch simply because it was the coarsest thread I could get in a reasonable size (theoretically this would give more speed). It does work well enough though I wouldn't go much steeper without a motor upgrade. It seems like the weight of the z axis becomes the major ...
by jhllt67
Sun Nov 25, 2012 9:12 pm
Forum: Member Projects
Topic: Electronic Enclosure
Replies: 12
Views: 8099

Re: Electronic Enclosure

Wow that is awesome, did you do the wireless with an Xbee or similar? That would be a very handy mod.
by jhllt67
Wed Oct 10, 2012 9:19 pm
Forum: Discussion
Topic: Current recommendations for electronics
Replies: 6
Views: 3882

Re: Current recommendations for electronics

Does the DM542A do microstepping? I can't tell from the description.