Does anybody know where I could order some of the Ultimaker parts from? I'm looking for: Timing belt from the Nema 17 to the shaft (X&Y) Open ended timing belt (600mm +) Timing pulley they use for the motor Timing pulley they use for the 8mm shaft Bushing for all the bars. Any help is better than no help :-) Extra question, does moving to T2.5 instead of T5 increase resolution in the print? Cheers, Mark https://reprap.org/forum/read.php?1,82067,82067#msg-82067 Mon, 07 Sep 2026 11:34:18 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,82067,105729#msg-105729 https://reprap.org/forum/read.php?1,82067,105729#msg-105729 Nick F. General Fri, 11 Nov 2011 12:13:04 -0500 https://reprap.org/forum/read.php?1,82067,100346#msg-100346 https://reprap.org/forum/read.php?1,82067,100346#msg-100346 NewPerfection General Thu, 06 Oct 2011 22:59:28 -0400 https://reprap.org/forum/read.php?1,82067,100345#msg-100345 https://reprap.org/forum/read.php?1,82067,100345#msg-100345
I don't.

In theory, 1.75mm is more consistantly sized while a spool of 3mm can vary in diameter more.. Maybe it's 2.85mm in some parts and 2.90 or 2.82 in others while 1.75 sticks pretty close to 1.75. I don't know that anybody's actually tested this but I believe it.

Also, since you get less volume per extruder step with 1.75, you should be able to do finer extruder control. If you do one step (or microstep.. whatever) with 3mm, you'll get like 3x as much volume as with one step of 1.75. This sounds great but I don't think anybody in this crowd actually has a machine that can benefit from such added resolution on the extruder; we're talking tiny, tiny numbers here - numbers smaller than the tolerances of the rest of the machine.

> why is makerbot and others offering this now?

I haven't seen them mention why it's better but haven't really looked either...]]> Dave Durant General Thu, 06 Oct 2011 22:54:35 -0400 https://reprap.org/forum/read.php?1,82067,100337#msg-100337 https://reprap.org/forum/read.php?1,82067,100337#msg-100337 AEC General Thu, 06 Oct 2011 20:36:59 -0400 https://reprap.org/forum/read.php?1,82067,100312#msg-100312 https://reprap.org/forum/read.php?1,82067,100312#msg-100312
They only ship with 3mm at the moment. I'm not sure if the diameter really matters much.]]> Andrew Diehl General Thu, 06 Oct 2011 17:01:51 -0400 https://reprap.org/forum/read.php?1,82067,100294#msg-100294 https://reprap.org/forum/read.php?1,82067,100294#msg-100294 -------------------------------------------------------
> Hi, I would like to know if the Ultimaker uses
> 1,75mm or 3mm filament, or if it could use both.

They ship a 3mm rig but I think it should be able to make it work (with parts) with 1.75mm, as long as the Bowden setup is ok with it.

I continue to be unconvinced that 3mm vs 1.75mm makes any real difference for +99% of us..

> I would use the machine to make prototypes of
> injection molded parts, so I need at least 0,015mm
> max tolerance

That's a reeeeally small number. I'm not sure any FDM-type machine, home or commercial, can promise doing that on a regular & repeatable basis.]]> Dave Durant General Thu, 06 Oct 2011 14:23:18 -0400 https://reprap.org/forum/read.php?1,82067,100293#msg-100293 https://reprap.org/forum/read.php?1,82067,100293#msg-100293 I would use the machine to make prototypes of injection molded parts, so I need at least 0,015mm max tolerance
I would appreciate any info
Thanks
Adrian]]> AEC General Thu, 06 Oct 2011 13:53:43 -0400 https://reprap.org/forum/read.php?1,82067,100179#msg-100179 https://reprap.org/forum/read.php?1,82067,100179#msg-100179 stcredzero General Wed, 05 Oct 2011 17:03:50 -0400 https://reprap.org/forum/read.php?1,82067,100174#msg-100174 https://reprap.org/forum/read.php?1,82067,100174#msg-100174
The pulley material takes to the tapping surprisingly well and never stripped on me.

Did you contact the ultimaker guys and see if they would sell you just the pulleys?]]> Andrew Diehl General Wed, 05 Oct 2011 16:01:51 -0400 https://reprap.org/forum/read.php?1,82067,100171#msg-100171 https://reprap.org/forum/read.php?1,82067,100171#msg-100171 -------------------------------------------------------
> I drilled and tapped a very low profile 8-32 set
> screw right through the teeth of the pulley, so it
> did not interfere with the belt mesh. Not the
> ideal situation, but it did work.

Wow. That's *very* low profile. How much thread do you have in there, like 2mm? A colleague has suggested that I get 6mm bore aluminum timing screws and that he could use the edge detectors on the CNC router to automatically find the exact center of the piece and rebore the holes to 8mm. I'm not entirely convinced yet, though.

I suppose I could also have the laser cut holes made larger, get larger bearings, and just epoxy the pulleys in place with the bushings already in between. If the bearing holes are large enough to pass the pulleys through, then we should be fine.]]> stcredzero General Wed, 05 Oct 2011 15:46:08 -0400 https://reprap.org/forum/read.php?1,82067,100166#msg-100166 https://reprap.org/forum/read.php?1,82067,100166#msg-100166 Andrew Diehl General Wed, 05 Oct 2011 15:10:04 -0400 https://reprap.org/forum/read.php?1,82067,100155#msg-100155 https://reprap.org/forum/read.php?1,82067,100155#msg-100155
The part I have in mind (A 6M16M020DF60 at SDP/SI) is this one:
[sdp-si.com]

[attachment 5538 ScreenShot2011-10-05at1.13.10PM.png]

How about epoxying one of those to the side of a brass sleeve, which I drill and tap for set screws? I am also open to other suggestions.]]> stcredzero General Wed, 05 Oct 2011 14:16:49 -0400 https://reprap.org/forum/read.php?1,82067,100126#msg-100126 https://reprap.org/forum/read.php?1,82067,100126#msg-100126 -------------------------------------------------------
> Where did you get them?

These, from SDP/SI.]]> Dale Dunn General Wed, 05 Oct 2011 08:49:49 -0400 https://reprap.org/forum/read.php?1,82067,100031#msg-100031 https://reprap.org/forum/read.php?1,82067,100031#msg-100031 evilb General Tue, 04 Oct 2011 13:32:32 -0400 https://reprap.org/forum/read.php?1,82067,100030#msg-100030 https://reprap.org/forum/read.php?1,82067,100030#msg-100030 Dale Dunn General Tue, 04 Oct 2011 13:13:41 -0400 https://reprap.org/forum/read.php?1,82067,99970#msg-99970 https://reprap.org/forum/read.php?1,82067,99970#msg-99970
[us.misumi-ec.com]]]> jbayless General Tue, 04 Oct 2011 00:14:34 -0400 https://reprap.org/forum/read.php?1,82067,99953#msg-99953 https://reprap.org/forum/read.php?1,82067,99953#msg-99953
[sdp-si.com]]]> Andrew Diehl General Mon, 03 Oct 2011 19:50:06 -0400 https://reprap.org/forum/read.php?1,82067,99936#msg-99936 https://reprap.org/forum/read.php?1,82067,99936#msg-99936 stcredzero General Mon, 03 Oct 2011 17:03:28 -0400 https://reprap.org/forum/read.php?1,82067,82166#msg-82166 https://reprap.org/forum/read.php?1,82067,82166#msg-82166
Would be nice if the country of origin showed up next to our names, huh?]]> jcabrer General Wed, 27 Apr 2011 16:57:31 -0400 https://reprap.org/forum/read.php?1,82067,82072#msg-82072 https://reprap.org/forum/read.php?1,82067,82072#msg-82072
I couldn't find a good source for stock brass/graphite bushings, but using an O (as in Orange) drill bit makes a perfect slip fit on 8mm shaft, so you can make your bushings out of whatever you want. Plastic works almost as well as brass for this, as there is very little dynamic loading. If you go this route, be warned the bushings will bind occasionally until the belts are attached, so don't be too worried in testing before the belts are on.]]> Andrew Diehl General Tue, 26 Apr 2011 23:55:04 -0400 https://reprap.org/forum/read.php?1,82067,82069#msg-82069 https://reprap.org/forum/read.php?1,82067,82069#msg-82069 Greg Frost General Tue, 26 Apr 2011 23:24:30 -0400 https://reprap.org/forum/read.php?1,82067,82067#msg-82067 https://reprap.org/forum/read.php?1,82067,82067#msg-82067
Timing belt from the Nema 17 to the shaft (X&Y)
Open ended timing belt (600mm +)
Timing pulley they use for the motor
Timing pulley they use for the 8mm shaft
Bushing for all the bars.


Any help is better than no help :-) Extra question, does moving to T2.5 instead of T5 increase resolution in the print?

Cheers,
Mark]]> Anonymous User General Tue, 26 Apr 2011 23:06:40 -0400