Hi, i have a big problem with my OpenRC Truggy.

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Hi,
i have a big problem with my OpenRC Truggy. Everytime i use this Car a Axle Shaft breaks. Most time at the Central Differential and most the small square at the top is demolished. I tryed PLA, ABS and PETG, printed allway with 100% infill, but nothing helps. What can i do to solve this problem. I know, i can use a metal gear, but i want to use printed parts.

Sinus

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Hello! The only filament that has worked as central drive shaft for me is Polycarbonate.

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910 has been working for me so far.

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Hi… I used trimmer line which is basically nylon and it held well for me.

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Thanks a lot for the feedback. I think PC will not work with my Duplicator I3 because of the high print temerature. so i will buy some Nylon Filament and do some more tests.

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So, i have ordert some Nylon Filament In the meantime i found a solution that works for r some rides today. On thingiverse i found some Axle Shaft for the front and rear Differncial ( http://www.thingiverse.com/thing:1109262/ ). These Shaft works fine, but the doesn’t fit for the Central Differencial. So i make a design for the Central Differencial
( http://www.thingiverse.com/thing:1918706/ ) . After four Lipos the Central Drive Shaft is broken, but the Axle shaft was o.k… Any suggestions what kind of filament i shoult use for the drive shaft? Nylon too?

Regards
Sinus

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Yes I think nylon is probably the most resistant filament for mechanical parts. Carbon fiber/pla composites are reported to work very well to but they are expensive