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US5 : material for "mechanical" part


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Posted · US5 : material for "mechanical" part

Hi experts !

 

I would like to have your advice because I'm a little bit lost in all the materials, I would like to print the parts in orange below. It's a electric servomotor homemade. There will be efforts in compression mostly, if evrything works fine 😛

 

GYJIJsA.jpg

oaakIiE.jpg

 

I thought about printing it in CPE, but is it the best for this kind of usage ?

 

Thanks a lot !

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    Posted · US5 : material for "mechanical" part

    I would think CPE or any PETG filament would be fine.  If the loads, as you say, are indeed all compression even PLA would be OK.  As far as the long tubular parts are concerned, why not just use schedule 40 PVC pipe, or extruded aluminum tubing?

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    Posted · US5 : material for "mechanical" part

    Thanks XYZ for your answer

     

    I just printed a tube with CPE from Ultimaker (with standard cura settings for CPE, infill 50%, 0.2mm layer), and I have some dimensions problems :

     

    1. outer diameter : 22.10/22.15 for 22m on CAO
    2. inner diameter : 12.60 for 13
    3. height : 89.70 for 90

    is there a way to correct that without changing dimensions in CAO ?

     

    Thanks !

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    Posted · US5 : material for "mechanical" part

    So, based on other comments I've seen on this forum, I'd say your outer diameters are about as good as you're going to get.  I mean less than 1% error ( actually 0.7% ) is pretty acceptable in my world.  Likewise, the height error is only 0.3%.  Again, pretty much an acceptable variance in my world.

     

    The I.D. is somewhat adjustable using the "Horizontal Expansion" setting.  This has been discussed elsewhere on this forum.

     

    I'm sure someone will more knowledge than I will jump in here at some point.

     

     

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