Search found 87 matches

by tbfleming
Fri Sep 26, 2014 2:45 am
Forum: Discussion
Topic: When is a circle not a circle?
Replies: 38
Views: 7173

Re: When is a circle not a circle?

Oh, I'm not sure if you're aware of this one but I do have to edit all of my jscut generated gcode files. Something about the way you close out your file LinuxCNC doesn't like. I just grab the last few lines from another file and replace your last line and all is well. I can add that as a bug if yo...
by tbfleming
Fri Sep 26, 2014 2:08 am
Forum: tinyG
Topic: tinyG Regret...
Replies: 8
Views: 1865

Re: tinyG Regret...

Universal G-code sender runs on Mac and has beta support for TinyG (1.0.8 unreleased). There's also http://chilipeppr.com/tinyg ; this runs on Mac. I received a TinyG recently to test; I plan to give it a try as part of my next round of hardware testing. I'm on PC though.
by tbfleming
Fri Sep 26, 2014 1:58 am
Forum: Discussion
Topic: When is a circle not a circle?
Replies: 38
Views: 7173

Re: When is a circle not a circle?

Oh, and I'm not using GRBL if it matters. I'm on LinuxCNC using a Probotix PBX-2 which is Xylotex based best I can tell Right now jscut produces gcode which should work on any CNC controller. My original idea for Z tool-height probing just flew out the window; LinuxCNC doesn't use gcode to change c...
by tbfleming
Thu Sep 25, 2014 8:53 pm
Forum: Discussion
Topic: When is a circle not a circle?
Replies: 38
Views: 7173

Re: When is a circle not a circle?

I believe you hit multiple weak areas in jscut. Enter / Exit points: jscut picks these; they can't be controlled. It uses a greedy closest-point algorithm. Flat spots on curves: an unfortunate side effect of curve-to-line conversion. You can reduce it by increasing Minimum Segments or decreasing Min...
by tbfleming
Mon Sep 22, 2014 10:59 pm
Forum: Design Ideas
Topic: Y-Axis gantry flip (gain +/- 1-1/2")
Replies: 4
Views: 2370

Re: Y-Axis gantry flip (gain +/- 1-1/2")

Wow I like this. It would have simplified my coverings and made the covered mechanics more accessable.
by tbfleming
Sat Sep 20, 2014 6:24 pm
Forum: Build Logs
Topic: Kirigami Shapeoko
Replies: 20
Views: 11035

Re: Kirigami Shapeoko

What appeared to be lost steps turned out to be something much much worse. Both my Y pulleys were slipping. Man I wish these steppers had flats milled on them. I was so frustrated that I set it aside for several weeks because I knew I'd have to do this: IMG_0466.JPG At least it's clean down there! A...
by tbfleming
Sat Sep 13, 2014 11:29 pm
Forum: Software - CAD, CAM, Workflow Help
Topic: A few jscut questions
Replies: 5
Views: 1588

Re: A few jscut questions

If you turn off the checkbox by the operation, it will disappear allowing you to select the objects under it. Unfortunately outside will also cut out a hole where the rounded rectangle is. I didn't realize you need to cut that part. You need 2 copies of your outer rectangle in the SVG: one by itself...
by tbfleming
Sat Sep 13, 2014 10:43 pm
Forum: Software - CAD, CAM, Workflow Help
Topic: A few jscut questions
Replies: 5
Views: 1588

Re: A few jscut questions

Thanks! It doesn't have drilling yet. You're heading in the right direction for the workaround: pocket a circle which is slightly larger than the cutter. The problem happens at the curve-to-line conversion; its default settings create too few line segments, which ends up shrinking the circle below t...
by tbfleming
Sat Sep 13, 2014 10:11 pm
Forum: Discussion
Topic: BlocksCAD front-end for OpenSCAD on Kickstarter
Replies: 2
Views: 540

Re: BlocksCAD front-end for OpenSCAD on Kickstarter

That is so cool! I dislike the "we'll opensource it when it's ready" philosophy.
by tbfleming
Sat Sep 13, 2014 1:03 pm
Forum: Discussion
Topic: I am considering a plug and play CNC mill
Replies: 12
Views: 2274

Re: I am considering a plug and play CNC mill

My guess is the Roland is the easiest to get started with.