Squashed frog replacement for repraps: parametric , printable by ckaos

Last crawled date: 3 years, 1 month ago

This is one more element that used a big "vitamin" (non printed part)in my reprap that i wanted to replace.
The squashed frog is the part that is underneath the Y axis platform, and to which the belt as well as the bushings/bearings rolling on the rails are attached.
The initial version was cut manually from plexiglass, but due to my lack of good quality tools/workspace, while it worked , it certainly would not have won prizes for quality !
So i decided to design a printable version, that had to :be mechanically resistant enoughbe relatively fast to printbe made of more than one part since it needed to be as big if not bigger than the maximum print sizehave mounting point for the bushings as well as the belt clamps
So this is the solution i came up with:it is made of 3 parts , two of which are identicalit requires 4 nuts and bolts to be assembledthe inner holes with roundings enable the parts to be strong yet not use too much plasticit is relatively fast to build and easy to assemble
*it works well !
I have yet to test it with a heated build platform but i am not too worried, because if the printed bushings of people using a hbp don't melt, then there is no reason for this to melt :)
Very important : it uses the great bolted pla bushings by Griffin Nicoll available here : http://www.thingiverse.com/thing:7157