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Maker Select Plus / Wanhao Duplicator i3 Plus Y Idler

by cambunch, published

Maker Select Plus / Wanhao Duplicator i3 Plus Y Idler by cambunch Jun 25, 2017
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Summary

I wasn't happy with the stock Y idler bracket on my Monoprice Select Maker Plus, so I created a new one. This uses the stock two mounting holes, but also needs an additional hole drilled. M3 nuts fit securely into the bracket. The stock hardware for the idler itself can be used for installation on this bracket.

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I printed this last week but added some extra bracing to this fabulous print, a big thanks to the designer. I havent installed it yet as my printer is still under warranty and it means drilling another hole so will wait awhile yet. Big thanks to Cambunch

Found 2 designs of the idler holder for the Wanhao Duplicator i3 Plus. I liked this one better because of it's professional looking design.
But - the upper 2 eyes for the shaft screw have rather deep recesses for the screw head and nut.
This causes the remaining wall to become very thing. Just holding it between 2 fingers caused the upper part of the eye to break off immediately.
Question: could you modify the design in a way such that the wall on both sides is kept in full thickness? The screw head, round, recess is not really required. The nut holding walls could be added from the outside. I'd even make the walls a bit thicker, there is plenty of space.
This would require the use of a longer shaft screw, not a big problem as they are easy to get. Keeping the stock screw doesn't allow for enough wall thickness on both side, causing the structure to become to weak.

I am new to this and have never used design software. If I wanted to modify the part by myself, which software should I use to change the STL file?

I'm sorry you're having issues with the strength of this part. I have over 150 hours of use on mine with no problems, so I find it a bit strange that you are having it break in your fingers. Are you printing at 100% infill with at least 2 walls?

Nevertheless, I have uploaded a version that doesn't have any recessed mounting holes for the top bolt and nut so that you may use a longer bolt and get some increased strength.

Thanks a lot! Great work.
I'll print today and provide feedback.

Thank you for this! What should I print this out of? ABS or PLA? Also, what layer height do you recommend? Infill?

PLA should be sufficient (I personally use PETG). I would recommend 100% infill to get the best strength as it is a small part that shouldn't use too much filament.

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