Tyre Truer MKIII for slot cars 1/32 by JamieG 3d model
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Tyre Truer MKIII for slot cars 1/32 by JamieG

Tyre Truer MKIII for slot cars 1/32 by JamieG

by Thingiverse
Last crawled date: 3 years ago
It all started with the idea to push the limits of the 3D printing to create a precision tool that I could have made out of metal instead. The first version was without real bearings so after a while the main bearing started to get clearance but I had proved myself that it could be possible to create a tool to be used for the slot car hobby with repetitive and reasonable results.
This is the evolution of the first tyre truer I designed and printed few month ago.
Few useful features have been added such as:
the use of three bearings 626-2Z (6x19x6 mm) which will give stability to the grinding spindle
new grinding wheel with double support
possibility to connect the vacuum cleaner tube (an adapter for a 35 mm hose is included)
the separation wall between the motor and the grinding wheel
motor cover
grinding wheel protection
electrical switch
conduit for electrical cables
ventilation for the driving motor
etc. etc.
Updates V01
main body (changed the fulcrum of the swing arm)
main and secondary pulleys (easier alignement)
added the new grinding wheel + axial spacers (tested the wheel and it works very fine)
added the electrical cable clamp
added the vacuum adapter to fit my Dyson's 35mm ID
Updates V02
improved clearances based on the 3D printed parts
common size for all steel shafts, now all dia. 6 mm except the tyre spindle (3/32")
Updates V03
I added Gv-013_1 grinding wheel drum V03 since some users experienced some errors on the V02 file of the drum
Cheers,
JamieG

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