Design idea - fixation and tightening of the y-drive belt
Posted by markbee
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Re: Design idea - fixation and tightening of the y-drive belt January 16, 2014 11:09AM |
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Re: Design idea - fixation and tightening of the y-drive belt January 16, 2014 11:38AM |
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Re: Design idea - fixation and tightening of the y-drive belt January 16, 2014 02:14PM |
Below is the improved results after correct Y belt tension has been acheived
Left/orange part is the RRP supplied original, Right/Blue is my print
Edited 1 time(s). Last edit at 01/16/2014 03:19PM by iamburny.
Limited Edition Red RS Ormerod 1 #144 of 200 - RRP 1.09fw
iamburnys Ormerod Upgrades Github
Follow me on ThingiVerse My Designs
Left/orange part is the RRP supplied original, Right/Blue is my print
Edited 1 time(s). Last edit at 01/16/2014 03:19PM by iamburny.
Limited Edition Red RS Ormerod 1 #144 of 200 - RRP 1.09fw
iamburnys Ormerod Upgrades Github
Follow me on ThingiVerse My Designs
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Re: Design idea - fixation and tightening of the y-drive belt January 16, 2014 02:29PM |
Perfect!
Dario
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Re: Design idea - fixation and tightening of the y-drive belt January 16, 2014 03:23PM |
"Ping!" as they should be Paul 
The problems that a slack belt can cause were only evident in the more intricate of my prints, especially parts with small sticky out bits and sharp angles, one particular culprit that gave me problems was the Z Gear for the Ormerod, which is now not a problem.
It is also very important if you plan on ramping up the print speed, fast direction changes are extremely prone to cause stepping.
Matt
Edited 1 time(s). Last edit at 01/16/2014 03:25PM by iamburny.
Limited Edition Red RS Ormerod 1 #144 of 200 - RRP 1.09fw
iamburnys Ormerod Upgrades Github
Follow me on ThingiVerse My Designs
The problems that a slack belt can cause were only evident in the more intricate of my prints, especially parts with small sticky out bits and sharp angles, one particular culprit that gave me problems was the Z Gear for the Ormerod, which is now not a problem.
It is also very important if you plan on ramping up the print speed, fast direction changes are extremely prone to cause stepping.
Matt
Edited 1 time(s). Last edit at 01/16/2014 03:25PM by iamburny.
Limited Edition Red RS Ormerod 1 #144 of 200 - RRP 1.09fw
iamburnys Ormerod Upgrades Github
Follow me on ThingiVerse My Designs
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Re: Design idea - fixation and tightening of the y-drive belt January 16, 2014 03:34PM |
@iamburny
Yeah LOL, it was very hard to get it as tight as this, one hand holding the printer on an angle and also holding one end of the belt and the other hand on the other end and tugging on both ends, took me sever tries to get it right.
I am starting to think about glue gun gunking it under the bed just in case
Paul
RS Ormerod No 436
Yeah LOL, it was very hard to get it as tight as this, one hand holding the printer on an angle and also holding one end of the belt and the other hand on the other end and tugging on both ends, took me sever tries to get it right.
I am starting to think about glue gun gunking it under the bed just in case
Paul
RS Ormerod No 436
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Re: Design idea - fixation and tightening of the y-drive belt January 17, 2014 03:20AM |
Very nice, thank you!
Howto service the ormerod undercarriage parts using a pair of clamps (to not overtighten)
Erik
Howto service the ormerod undercarriage parts using a pair of clamps (to not overtighten)
Erik
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Re: Design idea - fixation and tightening of the y-drive belt January 18, 2014 06:32AM |
Quote
iamburny
Y Bed attachment parts to avoid slipage
Thought I'd add my similar non 3D printed solution here as it seems relevant..
regards
Andy
Ormerod #318
www.zoomworks.org - Free and Open Source Stuff
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Re: Design idea - fixation and tightening of the y-drive belt January 18, 2014 11:10AM |
Hi,
I like to try ...
the tension in this way my grandfather used to ... and I'm not a kid
very funny .... Ian Thanks as usual!
[www.dropbox.com]
Fixing a screw in my .... Nice!
Thanks Andy
Dario
I like to try ...
the tension in this way my grandfather used to ... and I'm not a kid
very funny .... Ian Thanks as usual!
[www.dropbox.com]
Fixing a screw in my .... Nice!
Thanks Andy
Dario
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Re: Design idea - fixation and tightening of the y-drive belt January 18, 2014 05:05PM |
Quote
johneato
Dan, I take your point about stabilising the top of the Z threaded rod, I'll leave it alone, but it just doesn't look right.
John
Don't worry about it, I think it's meant as an extra feature for those hawaiian customers, put a hula-hula sockpuppet on top and enjoy the show
Erik
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Re: Design idea - fixation and tightening of the y-drive belt January 18, 2014 08:13PM |
@iamburney, thanks for sharing your y-bed attachment parts design. I printed a pair and now at last I have a good tension in the y-belt.
There is one aspect of the design that I think could be improved. The belt between the y-attachment part and the y-idler bearing is no longer parallel to the y-axis.This is particularly apparent at y=0:
As a result, the total belt length, and hence the tension, will vary depending on the y-position. To correct this, the belt needs to go around the attachment part the other way. This could be achieved if the teeth were on the spool instead of the surround, for the part on that side.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
There is one aspect of the design that I think could be improved. The belt between the y-attachment part and the y-idler bearing is no longer parallel to the y-axis.This is particularly apparent at y=0:
As a result, the total belt length, and hence the tension, will vary depending on the y-position. To correct this, the belt needs to go around the attachment part the other way. This could be achieved if the teeth were on the spool instead of the surround, for the part on that side.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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