Search found 272 matches

by Hans
Tue Sep 08, 2015 4:34 pm
Forum: Discussion
Topic: What if surface the ShapeOko3 sits on isn't level?
Replies: 11
Views: 1493

Re: What if surface the ShapeOko3 sits on isn't level?

If you push down on the corner of the machine and it doesn't rock, then either both machine and surface are dead flat (unlikely), or the machine's weight is enough to bend it down to match the surface's minute curvature. This deflection is probably small enough that we don't care (made up numbers, ....
by Hans
Wed Sep 02, 2015 5:17 pm
Forum: Discussion
Topic: Upgraded to 9mm wide belts
Replies: 52
Views: 16601

Re: Upgraded to 9mm wide belts

Cool. Semantics point, "mill finish" usually means "the finish it had when it left the steel mill" vs. "milled finish". Of course, depending on how you milled a part, it could have a whole range of surface quality so "milled finish" really just means "we didn't anodize/media blast/paint/polish or wh...
by Hans
Wed Sep 02, 2015 1:34 pm
Forum: Discussion
Topic: Upgraded to 9mm wide belts
Replies: 52
Views: 16601

Re: Upgraded to 9mm wide belts

Just found these posts. Congrats on the upgrade, Will. The biggest worry with the pulley overhanging is that it won't align well. If you can't wiggle it by hand and it doesn't wobble visibly when you make the motor spin, you should be all set in that department. The distance to belt centerline is th...
by Hans
Mon Aug 31, 2015 9:01 pm
Forum: Mini Spindles - Purchased
Topic: Thoughts on the Wolfgang Engineering WW-650?
Replies: 8
Views: 2047

Re: Thoughts on the Wolfgang Engineering WW-650?

You could probably get tighter runout from a handheld router if you replaced the bearings with angular contacts. Drop-in replacement sizes are 708 and 7002 for the DWP611. I can't seem to find dual-sealed ones for individual sale though, and that's no good for how much dust gets sucked through those...
by Hans
Mon Aug 31, 2015 4:21 pm
Forum: Electronics
Topic: NEMA14 motors?
Replies: 8
Views: 805

Re: NEMA14 motors?

I prefer waterline roughing and scallop finishing for wings, though I used a plain raster strategy for an early topo map of a section of the Li river in China. That was when I found out that grbl goes the wrong way around for arcs in the XZ plane :?. If you want small stepover with waterline milling...
by Hans
Mon Aug 31, 2015 2:42 pm
Forum: Electronics
Topic: NEMA14 motors?
Replies: 8
Views: 805

Re: NEMA14 motors?

I see. Z speed is important to me because most of what I've done is 3D surfacing. That load path you're shortening definitely does make a difference, my first modified Z had a lot of distance between screw and slide, and it would flap about in a stiff breeze.
by Hans
Mon Aug 31, 2015 1:05 pm
Forum: Electronics
Topic: NEMA14 motors?
Replies: 8
Views: 805

Re: NEMA14 motors?

Why would you want to do dual-leadscrew? IMO you're asking for slower performance and potential binding.
by Hans
Thu Aug 27, 2015 1:20 pm
Forum: Software - CAD, CAM, Workflow Help
Topic: AutoDesk Inventor supposed to be easy?
Replies: 9
Views: 1173

Re: AutoDesk Inventor supposed to be easy?

I've observed that AutoCAD experience doesn't do one any favors in trying to learn Inventor. I'm the de facto Inventor instructor at work, and everyone who was hired for AutoCAD experience has had to start from scratch learning Inventor. If you expect that, I think you're better off than if you thin...
by Hans
Thu Aug 20, 2015 4:57 pm
Forum: Software - CAD, CAM, Workflow Help
Topic: Scan to toolpaths ideas
Replies: 14
Views: 1384

Re: Scan to toolpaths ideas

I don't have a toolchest to do, but I gave it a try with an example image. The main speedups are going to be automating outline generation, and batching a drawer at a time. With Photoshop, you can create Action scripts that go through most of the steps for you but Gimp is free so I've used it for my...
by Hans
Thu Aug 20, 2015 12:42 pm
Forum: Discussion
Topic: SO3 under a workbench
Replies: 2
Views: 357

Re: SO3 under a workbench

I would just consider how much of a pain it might be to work with the machine at that height, especially with it covered by a tabletop. My Shapeoko lives at knee height, and after a while it hurts your back. I don't see a problem with the hammering, if anything make sure you use the loctite to keep ...