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RepRap Action Car

by wizard23, published

RepRap Action Car by wizard23 Dec 12, 2008

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Summary

Cool RepRap Action Car designed by Patrick Prosic

Instructions

The zip file includes STL files for the Cassis and the front and back wheels.

The cassis has a slightly bent base which is bad if you want to print it with a reprap. So I included another version that has a flat base and holes for the axis for the wheels - ActionCar_FlatBase.stl - if you want to print this then take this file.

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How are you connecting the wheels to the car?

How do you print the top of the wheel arch without support?

We (Metalab) used your own idea of moving quite fast to stretch the material. although the overhang is not really a bridge (straight line from A to B) but a 90 degree corner its surprisingly stable with a fast feedrate. In the above picture it worked out very well for 3 of the arches. One arch (on the side you cant see on the picture) fell down a little but not even far enough to stop the wheel from turning.

I disabled this automatic bridge detection in skeinforge because these layers are always too thick, look ugly and it does not help much (since half of the time the inferred bridge is in the wrong direction).

One last remark: I never printed it full scale. I think the modell is 70mm long in the file but I yet only printed 0.5 and 0.7 scaled versions (scaled in all dimensions). I guess it will be simmilar to the bridges: the bigger they get the more it will bend a little.

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