Search found 102 matches

by bjbsquared
Wed Jun 26, 2013 11:13 am
Forum: Build Logs
Topic: Zerblatt's build
Replies: 22
Views: 13801

Re: Zerblatt's build

Great Build!

Another thing to consider adding the next iteration is LEDs to show switch position. That way you can read the switch status across the room.

Perhaps none = off, blue = auto, read = on. I do this with the test equipment we design at work.
by bjbsquared
Tue Jun 25, 2013 10:02 am
Forum: Software - CAD, CAM, Workflow Help
Topic: Octoprint for CNC / Grbl
Replies: 9
Views: 7845

Re: Octoprint for CNC / Grbl

This or something like this is on my to do list. I'm not a software/system admin type. I tread water with python so something like this seems like a big time sync if it didn't work the first time. But, I am headed in that direction. I've been looking at the raspberry pie AlaMode but haven't committe...
by bjbsquared
Tue Jun 25, 2013 9:47 am
Forum: Build Logs
Topic: ShapeOko #457 - from Canada *UPDATED*
Replies: 13
Views: 4558

Re: ShapeOko #457 - from Canada *UPDATED*

Now, I need to collect some additional M5 screws in various 5mm increments so I don't have as much screw poking out everywhere, and more metal spacers.
My solution has been to buy longer screws and cut them with a rotary tool + cut off wheel. Then bevel the cut end with a grinder.
by bjbsquared
Sun Jun 23, 2013 10:47 pm
Forum: Discussion
Topic: Control board that requires no programing, no soldering
Replies: 30
Views: 7451

Re: Control board that requires no programing, no soldering

Can I submerge my drivers in a container with mineral oil to dissipate heat naturally without fans? This way I don't have to worry about many elements. I have seen this done but what people don't realize is that you need a pump or a bubbler to move the oil around. Mineral Oil doesn’t conduct heat t...
by bjbsquared
Sun Jun 23, 2013 4:47 pm
Forum: Other - (etchers, drag knifes, lasers)
Topic: Vinyl Cutting Blade
Replies: 37
Views: 28543

Re: Vinyl Cutting Blade

It seems to me that this would not be too hard to make. Even 3d printed and use common razor blades. All you really need to know is the offset and the software.
by bjbsquared
Fri Jun 21, 2013 1:26 am
Forum: 3D Printing
Topic: RepStrapOko
Replies: 42
Views: 13654

Re: RepStrapOko

I'm not familiar with Teacup but some firmwares require the extruder temperature to be in a certain range before it starts printing. Perhaps it could be fooled with a switch and some resistors or overridden with a gcode command.
by bjbsquared
Thu Jun 20, 2013 12:15 pm
Forum: Design Ideas
Topic: Stationary y-Axis motors
Replies: 4
Views: 1724

Re: Stationary y-Axis motors

BJBSquared has done this, now I don't feel so clever. I'm sure you are still clever. :D The biggest advantage I think is that routing the wires for the Y motors was easy. Direct to the shield. Weight difference = 2* (motor +motorPlate -carriagePlate) Cost was more: An extra idler on each side and A...
by bjbsquared
Wed Jun 19, 2013 4:49 pm
Forum: Design Ideas
Topic: #1016, Conversion 1M x1M for Hobby Panels
Replies: 27
Views: 9640

Re: Y Belt Details of#1016, Conversion 1M x1M for Hobby Pane

I'm not grasping exactly how you have your y-axis belt setup. Could you provide more pictures? (BTW awesome setup!) This photo shows what I call the motor buttress. It mounts the motor and Idler pulley and also gives a mounting point for the Y rail. Originally, the pulley was mounted with a whole b...
by bjbsquared
Tue Jun 18, 2013 8:46 pm
Forum: Electronics
Topic: Not Understanding AC Circuits
Replies: 12
Views: 4059

Re: Not Understanding AC Circuits

Does that switch light up? Perhaps when it is on?

If so, it could be the source of leakage.
by bjbsquared
Tue Jun 18, 2013 10:01 am
Forum: 3D Printing
Topic: kit for qubd extruder that works
Replies: 8
Views: 3701

Re: kit for qubd extruder that works

Bart's mod is a derivative of yet another mod (but Bart's is simpler). These mods fix the QU-BD for ABS, but, as far as I can tell from the reviews, not always for PLA. PLA is trickier because it has very different flow properties (less viscous) and a sharp transition temperature (unlike ABS, which...