Search found 1076 matches

by ednisley
Mon May 05, 2014 12:04 am
Forum: General Discussion
Topic: What's the smallest/finest bolt you can print on an M2?
Replies: 11
Views: 5310

Re: What's the smallest/finest bolt you can print on an M2?

what standard threads you can reasonably print on an M2 From what I've read, 1/4-20 is about as small as you can expect. A 0.20 mm layer thickness gives only 6.3 layers per turn, so each layer occupies a 60° angle: the "thread" won't be very smooth. Of course, you can reduce the layer thickness to ...
by ednisley
Wed Apr 30, 2014 12:56 pm
Forum: General Discussion
Topic: Printer Enclosure
Replies: 7
Views: 4325

Re: Printer Enclosure

the switches were not printing well Have you tried printing the bases as separate parts, with sockets / alignment pins for the switches & knobs, then gluing them together? A hole with a glue gutter works well: http://softsolder.com/2013/11/12/improved-alignment-pin-hole-for-split-3d-prints/ You cou...
by ednisley
Sun Apr 27, 2014 8:51 pm
Forum: Tech Support
Topic: Problems feeding flexible filament
Replies: 17
Views: 11557

Re: Problems feeding flexible filament

winding around the gear Back in the day, several folks made dual-sided drives that gripped the filament on both sides, rather than mashing it against a smooth bearing. Stacking the two drive splines: http://www.thingiverse.com/thing:27654 probably isn't any better than a single spline, but somewher...
by ednisley
Fri Apr 25, 2014 11:47 pm
Forum: Modifications
Topic: Automated Z-offset and/or Bed Leveling
Replies: 8
Views: 4925

Re: Automated Z-offset and/or Bed Leveling

How would it work? Those likely have an oscillator inside that's detuned by the presence of a ferromagnetic target. The gibberish that passes for specifications says: Response Frequency : 100Hz Detect Object : Iron Detecting Distance : 5mm/ 0.2'' A possibly related datasheet ( http://www.chinahwe.n...
by ednisley
Wed Apr 16, 2014 1:51 am
Forum: Modifications
Topic: Automated Z-offset and/or Bed Leveling
Replies: 8
Views: 4925

Re: Automated Z-offset and/or Bed Leveling

you could detect contact electrically with the nozzle Remember that the nozzle may be covered with a thin layer of insulating plastic that prevents dependable electrical contact. Depending on electrical continuity may work most of the time, but when it fails, the nozzle will attempt to punch a hole...
by ednisley
Mon Apr 14, 2014 12:57 pm
Forum: General Discussion
Topic: Bed drops quickly after print finishes
Replies: 12
Views: 10955

Re: Bed drops quickly after print finishes

whatever works
A pair of silicone rubber baby buggy bumpers atop the original Z-axis stepper worked pretty well:
http://softsolder.com/2013/04/06/makerg ... g-bushing/

The upgraded stepper didn't let the bed fall freely, so it didn't need the bumpers.