Search found 117 matches

by bam
Thu Oct 17, 2013 9:52 am
Forum: Hardware
Topic: Problems with larger prints on TAZ
Replies: 14
Views: 5202

Re: Problems with larger prints on TAZ

If it seems like the printer isn't extruding enough, a good first step is to check the teeth of the hobbed bolt for embedded plastic. Even if only a few teeth are clogged, it'll extrude quite a bit less than it should and create the kinds of parts that you're seeing. Over-tightening the extruder scr...
by bam
Thu Oct 17, 2013 9:28 am
Forum: Hardware
Topic: Printed Parts "shifting"???
Replies: 17
Views: 5309

Re: Printed Parts "shifting"???

Heyo Shifting or skipping is unfortunately a pretty common problem in the 3D printing world. More often than not, it's caused by the x-carriage binding on the rails. This can be caused by worn bushings, dirty rails or bearing misalignment. I recommend installing our stabilized x-carriage, this upgra...
by bam
Fri Sep 27, 2013 4:03 am
Forum: AO-101 & AO-100
Topic: Wierd Y axis doubleing width issue
Replies: 2
Views: 868

Re: Wierd Y axis doubleing width issue

Woo, that is strange. Did it print multiple layers at the double length or just the one? It sounds like the steps per unit calibration (firmware) went haywire; but I've never heard of that happening before, especially in the middle of a print. Strange things can happen if you start the print before ...
by bam
Fri Sep 27, 2013 3:50 am
Forum: Hardware
Topic: AO-10x x-carriage mod
Replies: 23
Views: 9377

Re: AO-10x x-carriage mod

Sounds cool, I'll try to fab one up when I can find some time. Is this the style of quick fit you're talking about?
http://www.thingiverse.com/thing:19590

How's it deal with high speed printing? It seems like it would introduce a bit of slop.

-brent
by bam
Wed Sep 25, 2013 4:15 am
Forum: Hardware
Topic: AO-10x x-carriage mod
Replies: 23
Views: 9377

Re: AO-10x x-carriage mod

4 bushings over-constrains the x plane; it's fine if they're all perfectly aligned but it can cause the carriage to catch and skip if the bearings wear unevenly. I think this is a big part of the reason that we've never had a TAZ skip or produce serious rippling on part surfaces. I've got an earlier...
by bam
Mon Sep 23, 2013 1:19 pm
Forum: Hardware
Topic: AO-10x x-carriage mod
Replies: 23
Views: 9377

Re: AO-10x x-carriage mod

I haven't tried a fan yet, although I expect not. The belt mount holes are farther apart than on the original, it's a quick change if anyone is interested in trying. Make sure you turn the x endstop upwards to clear the rear bearing before starting printing, the x home position shouldn't change much...
by bam
Mon Sep 23, 2013 4:26 am
Forum: Hardware
Topic: AO-10x x-carriage mod
Replies: 23
Views: 9377

AO-10x x-carriage mod

Here's a stabilized x carriage redesign that we're testing out at AOHQ. It's a direct replacement for the stock X-carriage on the AO-100 and AO-101, and it reuses the stock hardware - no vitamins needed. The redesign stretches the x-carriage by 40mm without compromising print volume, and should keep...