Search found 16 matches

by dcartier
Sat Apr 26, 2014 11:07 am
Forum: Discussion
Topic: Openbuilds opinions
Replies: 9
Views: 2756

Re: Openbuilds opinions

No experienced here, but I watched the build video about a week ago and it does look like a pretty impressive machine. The use of solid v-wheels should be less prone to compression, the quantity of wheels used, and the belt positioning using the solid wheets as the idlers is also a neat idea. The Z ...
by dcartier
Thu Apr 24, 2014 10:35 am
Forum: Discussion
Topic: Plans Forward
Replies: 10
Views: 1565

Re: Plans Forward

Hi g2ktcf, I have been there, except from the other direction. I have some servo motors that I assumed had 1/4" (6.35mm) shafts and ordered expensive couplers only to find out the servos have 8mm shafts! To Edwards point, Nema 23 motors have 1/4" (6.35mm) shafts. You can get affordable GT2 couplers ...
by dcartier
Wed Apr 23, 2014 10:41 am
Forum: Discussion
Topic: What is the Future of the opensource CNC Toolchain?
Replies: 22
Views: 4696

Re: What is the Future of the opensource CNC Toolchain?

I also have been somewhat disappointed at the state of opensource Cad/Cam. However what I think needs to be done is slightly different. My suggestion on how to address the situation would be to improve the existing 2D and 3D solutions (E.g. makercam and pycam) to expand their capabilites and remove ...
by dcartier
Sun Apr 20, 2014 3:20 am
Forum: Discussion
Topic: DW660 Dust Shoe Generator
Replies: 2
Views: 1864

DW660 Dust Shoe Generator

I recently cut a bunch of acrylic and was suprised at how the swarf got everywhere, including the keyboard on my notebook 5 ft away. I decided that I needed a dustshoe to be able tocut anything this messy again.. After searching I found that Improbable Construct was kind enough to make the files for...
by dcartier
Sat Apr 19, 2014 2:35 am
Forum: Design Ideas
Topic: Hall Effect Home / Limit Switches
Replies: 4
Views: 5071

Re: Hall Effect Home / Limit Switches

As they say, a picture is worth a thousand words, so here is a photo of what I was trying to describe. https://lh3.googleusercontent.com/-SVjDMOjlMZI/U1HftEeFFsI/AAAAAAAAByo/CCgtKyKy5Zg/s640/IMG_20140418_222818.jpg My next project tomorrow is a dust shoe because that single flute bit chucked acrylic...
by dcartier
Sat Apr 19, 2014 2:24 am
Forum: Design Ideas
Topic: Hall Effect Home / Limit Switches
Replies: 4
Views: 5071

Re: Hall Effect Home / Limit Switches

Thanks Edward. I put a home switch on X,Y and Z, and limit switches on X & Y. For the Z home sowitch I used one of the existing holes about mid way down the Z plate with a standoff and a rectangular magnet body that forms a T and runs along the side Tslot. I thought the Z might be more complicated t...
by dcartier
Sat Apr 19, 2014 12:45 am
Forum: Design Ideas
Topic: Hall Effect Home / Limit Switches
Replies: 4
Views: 5071

Re: Hall Effect Home / Limit Switches

I finished up my home/limit switches today. However the original design that I posted above proved problematic. I was cutting it from the side of the body, so it required flipping the material to cut the undercuts. It was my first attempt at cutting acrylic, and the results were less than spectacula...
by dcartier
Sun Mar 23, 2014 5:50 pm
Forum: Design Ideas
Topic: Hall Effect Home / Limit Switches
Replies: 4
Views: 5071

Hall Effect Home / Limit Switches

Now that I have my SO2 assembled I am looking forward to adding some home / limit switches to help with repeatability. I can hardly wait to know where "here" is between machining sessions. :) For a few years I have been following a thread on cnczone from Roman Black (Romanlini) for some DIY open sou...
by dcartier
Mon Mar 17, 2014 10:35 am
Forum: Design Ideas
Topic: Spindle Control
Replies: 6
Views: 5890

Re: Spindle Control

When screwing in the brass standoffs that attach the Z stepper to the bearing plate, I somehow managed to strip out the threads for the screws that hold the stepper halves together. I think this was due to the threaded ends of the brass standoffs being too long, but not 100% sure. At any rate, the ...
by dcartier
Mon Mar 17, 2014 2:38 am
Forum: Design Ideas
Topic: Spindle Control
Replies: 6
Views: 5890

Re: Spindle Control

Just curious, in the photo it looks like you have 2 C-clamps on your Z stepper? Are they on the motor or the peg board? If they are on the motor what are they being used for?

Dennis