Search found 22 matches

by skipmcdonald
Thu May 22, 2014 3:09 pm
Forum: Design Ideas
Topic: Shapeoko 2 geared z-axis design
Replies: 1
Views: 1566

Shapeoko 2 geared z-axis design

I have been playing with a z-axis design that moves the motor and allows for more clearance for the spindle. It is still a work in progress and has NOT been adequately tested. Here is a link with a rendering of the assembly from OpenSCAD. https://github.com/skipmcdonald/GearboxZaxis/blob/master/asse...
by skipmcdonald
Wed May 07, 2014 11:32 pm
Forum: Build Logs
Topic: Edward's S2 Enclosure
Replies: 21
Views: 6559

Re: Edward's S2 Enclosure

I was going to purchase some foam egg crate material to line mine, but bubble wrap is a great idea!! and probably a lot cheaper and easier to clean/replace.

Besides bubble wrap is cool....pop.......pop.....pop.....pop.........pop.....pop.......
by skipmcdonald
Wed May 07, 2014 10:23 pm
Forum: Build Logs
Topic: Edward's S2 Enclosure
Replies: 21
Views: 6559

Re: Edward's S2 Enclosure

Llamas wrote:I'll be decoupling my noisemakers from the enclosure structure using compartmentalized pneumatic shock absorption panels.
Sorry, Use some rubber washers to keep the outside from getting shook-up by the buzzy do-hicky inside and making more noise... :lol:
by skipmcdonald
Wed May 07, 2014 6:42 pm
Forum: Build Logs
Topic: Edward's S2 Enclosure
Replies: 21
Views: 6559

Re: Edward's S2 Enclosure

I also hate to bring this up but any significant vibration transferred into the 2020's during the milling process may make your panels into resonators since they are mechanically coupled together. You might look at putting some kind of mechanical dampener between anything that vibrates and the outsi...
by skipmcdonald
Wed May 07, 2014 6:31 pm
Forum: 3D Printing
Topic: RAMPS board and NEMA23s
Replies: 7
Views: 1633

Re: RAMPS board and NEMA23s

Over the years I have built 5 different 3d printer designs and rebuilt a couple of those into improved models. If you are using relatively small (lower amperage) nema23's and a ramps 1.4 you can get marginal performance with the 4988 drivers and a 12v 400+watt PC power supply printing PLA at 185C on...
by skipmcdonald
Sat Apr 26, 2014 10:11 pm
Forum: Build Logs
Topic: Edward's S2 Buildlog (rebuild log)
Replies: 23
Views: 6259

Re: Edward's S2 Buildlog (rebuild log)

I like that Z axis design. I tried making a similar one with herringbone printed gears, it required 3 gears but I'm not satisfied with it yet. A belt is the way to go. I also posted the New bracket files over in my buildlog. It's lucky I tested it, the spec on the Misumi site is misleading or someth...
by skipmcdonald
Sat Apr 26, 2014 9:11 pm
Forum: Build Logs
Topic: Skip's Shapeoko 2 #3181
Replies: 13
Views: 11362

Re: Skip's Shapeoko 2 #3181

New bracket design inspired by Edward. Here are the files: https://dl.dropboxusercontent.com/u/30110380/shapeoko15250plate2.scad https://dl.dropboxusercontent.com/u/30110380/shapeoko15250plate2.stl https://dl.dropboxusercontent.com/u/30110380/shapeoko15250plate2.dxf and a picture of the bracket prin...
by skipmcdonald
Fri Apr 25, 2014 7:37 pm
Forum: Build Logs
Topic: Edward's S2 Buildlog (rebuild log)
Replies: 23
Views: 6259

Re: Edward's S2 Buildlog (rebuild log)

Edward - thank you so much for your wonderful creations and ideas! I would be very interested in a laser cut steel precision bracket. If we linked up 4 (15250) extrusion holes in the new bracket instead of just 2 it might take out the c-clamp and flat edge assembly steps I used to make sure the two ...
by skipmcdonald
Thu Apr 24, 2014 10:18 pm
Forum: Build Logs
Topic: Edward's S2 Buildlog (rebuild log)
Replies: 23
Views: 6259

Re: Edward's S2 Buildlog (rebuild log)

That looks very nice. Your design is amazing and I am happy to contribute to the cause. Please don't take the following as criticism in any way. Aesthetics are a very subjective and personal thing. I didn't feel the need to have a 550mm bed because the 500mm of just the two extrusions covers everyth...
by skipmcdonald
Tue Apr 22, 2014 8:22 pm
Forum: Software - CAD, CAM, Workflow Help
Topic: Work around for G83 canned cycles.
Replies: 0
Views: 970

Work around for G83 canned cycles.

When GRBL ignores the holes you wanted peck drilled what do you do? Well I wrote a quick and dirty work around in perl that post process converts g83 g80 blocks into code that GRBL does understand. A series of G0 G1 and G4 commands are substituted for the blocks. It processes most g-code files that ...