1 Topic by DePartedPrinter (edited by DePartedPrinter 2012-12-20 05:04:38)

  • DePartedPrinter
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Topic: Printable Ball Bearing problems

Alright, so I designed a ball bearing that I thought would be capable of being printed with a Solidoodle using no support material.  I have attempted to print it multiple times and I can't get it to work.  The problem is getting the balls to stick to the print bed. What happens is they end up coming lose about half way through the print and getting stuck to the extruder. You can adjust the z offset to try to get the balls to stick to the bed better but the trade off is that then the races (inside and outside of bearing) and balls start sticking together making the final part useless.  I have been keeping the bed temp around 95 to a 100. 

Anyone have suggestions to get this thing to print?  Making it larger would probably help but if anything I would like to print it smaller.

Post's attachments

bearing33DePartedPrinter.zip 527.48 kb, 28 downloads since 2012-12-20 

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SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

2 Reply by IanJohnson

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Re: Printable Ball Bearing problems

Brim maybe, and also use Z Lift to reduce chances of the nozzle dragging on them and knocking them loose.

3 Reply by DePartedPrinter

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Re: Printable Ball Bearing problems

I'm not sure it would work with a brim. I'm trying to upload the stl. If you slice it and look at the first layer you will see what I am talking about. I haven't tried the z lift tho.

SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

4 Reply by cmetzel

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Re: Printable Ball Bearing problems

Are you married to the idea of no support?  You could model in your own minimal support.  Or like Ian mentions use z lift or I think one of them calls it hop.

5 Reply by DePartedPrinter

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Re: Printable Ball Bearing problems

cmetzel wrote:

Are you married to the idea of no support?  You could model in your own minimal support.  Or like Ian mentions use z lift or I think one of them calls it hop.

I'm pretty married to the idea of no support. Once I get the stl up you can slice it and you will see what I mean.

SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

6 Reply by DePartedPrinter

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Re: Printable Ball Bearing problems

Finally got the file posted.

SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

7 Reply by 3D_CC_design

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Re: Printable Ball Bearing problems

IanJohnson wrote:

Brim maybe, and also use Z Lift to reduce chances of the nozzle dragging on them and knocking them loose.

Because I tried also to print a ball bearing and I didn't have a good result.
1 - if I used Repetier and Slic3r the balls were completely stick to the cage
2 - If I used skeinforge with Pronterface the balls have to much play

How do you set a Z lift ? what does this setting do ?
does it solve the problem you see an the repetier part were we can see the extruder head ??

Post's attachments

Ball bearing with skeinforge and Pronterface.jpg
Ball bearing with skeinforge and Pronterface.jpg 1.34 mb, 4 downloads since 2012-12-20 

Ball bearing with slic3r and repetier.jpg
Ball bearing with slic3r and repetier.jpg 1.17 mb, 4 downloads since 2012-12-20 

the 2 try on the left Ball bearing with slic3r and repetier.jpg
the 2 try on the left Ball bearing with slic3r and repetier.jpg 1.35 mb, 4 downloads since 2012-12-20 

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Printer: Solidoodle 2
Slicer: Slic3r
Soft: repetier

8 Reply by machenmusik

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Re: Printable Ball Bearing problems

In slic3r configuration, Lift Z is under printer settings / extruder.

Trying it now (0.5mm) to print Artec Dragon, so far so good