Search found 38 matches

by glendresser
Mon Feb 11, 2013 3:46 am
Forum: Discussion
Topic: Totaly lost Need Direction
Replies: 4
Views: 862

Re: Totaly lost Need Direction

I think all of us feels like an idiot at some point during our foray into something like this! My 2 cents: I found that the sketchup plugin didn't produce particularly good g-code. You can't customize it very well. If you're comfortable in Sketchup, then by all means use it for doing your 3D drawing...
by glendresser
Sun Feb 10, 2013 7:29 pm
Forum: Rotary Tools (like dremel)
Topic: Pushing my Dremel too hard?
Replies: 3
Views: 1762

Re: Pushing my Dremel too hard?

Thanks, that's what I suspected. I found a beat-up old Dewalt 660 at a garage sale for $20 today. Seems to run fine but needs new collets. Hopefully it'll be the solution I'm looking for.
by glendresser
Fri Feb 08, 2013 8:22 pm
Forum: Rotary Tools (like dremel)
Topic: Pushing my Dremel too hard?
Replies: 3
Views: 1762

Pushing my Dremel too hard?

Yesterday, my Dremel shut down in the middle of a big job, and in opening it up, it seems like the brushes got jammed inside. When I pulled out the springs, the carbon blocks were stuck inside and I had to use tweezers tro scrape away and extract them. So now I'm wondering if that was just bad luck,...
by glendresser
Mon Feb 04, 2013 5:46 am
Forum: Software - CAD, CAM, Workflow Help
Topic: DXF to 3D milled object (via CamBam)
Replies: 1
Views: 999

Re: DXF to 3D milled object (via CamBam)

I often use the method that you mention: I have the top of my stock as 0, and then use just use a combination of profiles and pockets to cut out the shapes. On a complex job, I try to know when I'm working in illustrator what all my cuts are going to be, then I can just divide it into various layers...
by glendresser
Wed Jan 30, 2013 7:47 am
Forum: Design Ideas
Topic: Acme thread Z axis with a zero backlash nut
Replies: 5
Views: 4970

Re: Acme thread Z axis with a zero backlash nut

Thanks, I went ahead and set this up using the spare ACME parts I had lying around, and it works great! I had a few of the dumpsterCNC delrin anti-backlash nuts on hand, and making an adapter to fit it onto the plate was the only really tricky part. Well, that and the math of trying to tweak my new ...
by glendresser
Mon Jan 28, 2013 7:18 pm
Forum: Design Ideas
Topic: Acme thread Z axis with a zero backlash nut
Replies: 5
Views: 4970

Re: Acme thread Z axis with a zero backlash nut

For anyone who's done this mod, what pitch is your rod? Is there an ideal pitch? I've got some 1/2" acme rod kicking around from a previous project and I'm thinking about using it for this. I believe it's 8 TPI. Just eyeballing yours, it looks like it's a similar TPI. (I see in IC's explanation on t...
by glendresser
Wed Sep 12, 2012 4:21 am
Forum: GRBL
Topic: G2/G3 (CW/CCW Arc Mode) Codes
Replies: 2
Views: 1880

Re: G2/G3 (CW/CCW Arc Mode) Codes

I can't get any movement out of a G3 XYIJ line either, glad to know it's not just me.
by glendresser
Tue Sep 11, 2012 6:14 pm
Forum: Discussion
Topic: Prototype Calibration Pattern (with G-Code)
Replies: 25
Views: 25556

Re: Prototype Calibration Pattern (with G-Code)

This is a great idea. My one suggestion would be to maybe break it into a bunch of smaller patterns. What I found, running it through, was that there were some parts that my machine did well on, and some that it sucked at (particularly the concentric circles). Overall it completely butchered the pat...