Search found 55 matches

by ksevcik
Sat Nov 05, 2016 2:52 am
Forum: Tech Support
Topic: Fan connections... variable speed fan not working
Replies: 10
Views: 4653

Re: Fan connections... variable speed fan not working

There is no way to control a BLDC motor with the PWM found in RepRap-style firmware. Use 100% all the time and be done with it. I've been thinking about hacking together a proper 12V supply + pins to make it possible to use actual PWM controlled fans. 2A DC-DC converter for $15, teeny perf board fo...
by ksevcik
Wed Nov 02, 2016 11:39 pm
Forum: Tech Support
Topic: Bowed Gantry?
Replies: 5
Views: 1493

Re: Bowed Gantry?

I had something similar. Diagnosed it with a taper gauge between the nozzle and a pretty flat MIC6 plate. I just shimmed the middle of the X rail by however much the bed was "high" and that got everything flat. I tried not to loosen all the hardware, though. Left a screw on each end mostly tight so ...
by ksevcik
Sat Oct 29, 2016 11:55 pm
Forum: General Discussion
Topic: PTFE Liner
Replies: 2
Views: 2147

Re: PTFE Liner

I bought this PTFE tube for a slightly smoother feed tube and it looked exactly the same as the V4 liner: http://www.amazon.com/gp/product/B01CUPV90M/ I only had occasion to notice the liner when clearing a pretty terrible jam. I'll note I didn't use it to replace the liner, since the liner has a sl...
by ksevcik
Sat Oct 22, 2016 4:01 am
Forum: Filament
Topic: Polyethylene filament?
Replies: 5
Views: 3196

Re: Polyethylene filament?

PETG is good stuff, but if you don't want to needlessly buy a roll, you might test your glue on some straight PET first. Most soft drink bottles are PETE (#1 in the little recycle triangle), which should be pretty similar to PETG as far as glue is concerned. Polystyrene (PS #6) should be similar to ...
by ksevcik
Fri Oct 21, 2016 9:57 pm
Forum: General Discussion
Topic: Collaboration Opportunity with MakerGear
Replies: 19
Views: 6908

Re: Collaboration Opportunity with MakerGear

So it's a weird first post, but I've been running/upgrading a kit-M2 for a school robotics team for a couple years, and lurking the forum for about that long, so.. Automation engineer with C# skills (mostly for HMIs), plus various experience in machining and electronics necessary to get said machine...