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Experiments In Loco Chassis Open Source Design
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 Posted: Sat Sep 7th, 2019 08:30 am
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tebee
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Location: France
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I've been thinking it would be good to design my own chassis.

I'm going to made the design open source for others to use and hopefully suggest improvements.

It's designed to be printed on home printers and use cheap easily available Chinese components.





STL files 

Top part and motor mount http://www.tbmod.com/STL/tc cc 24 mk1.stl

Middle bit http://www.tbmod.com/STL/mc24 c mk1.stl

Keeper plate http://www.tbmod.com/STL/kp 24 c mk1.stl


Tom




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 Posted: Sat Sep 7th, 2019 09:06 am
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tebee
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Parts needed 


10mm square 6 pole motor  -
https://www.ebay.com/itm/Minebea-10mm-10mm-Square-Motor-DC-6V-9V-7-2V-11700RPM-6-Pole-Rotor-Large-Torque/263139110024


Motor gear - 8 teeth 0.5 modulus shaft 1mm
Worm  - 6mmx6mm 0.5 modulus shaft 2mm
Worm wheel - 14 tooth 0.5 modulus shaft 2mm

All from this pack (2 required ) 0.5 modulus shaft 2mm
https://www.ebay.com/itm/16-Kinds-Shaft-Gears-Spindle-Gears-Gear-B-2MM-2-3MM-3MM-3-17MM-4MM-Worm-Plastic/253597862264


Layshaft gear - 26 tooth 0.5 modulus shaft 2mm from this pack (amongst many others)
https://www.ebay.com/itm/58-Styles-Plastic-Gears-All-Module-0-5-Robot-Parts-for-DIY-Arduino-MF/172393288079


2mmx5mmx2.5mm ball bearings (6 off)
https://www.ebay.com/itm/5-100PCS-1-5-x-4-x-2-mm-681XZZ-Metal-Double-Shielded-Ball-Bearings-For-Toy/183747474026


2mm steel shafting 


M2 12mm countersunk headed screws + nuts  (4 off) 


1.6mm wide phosphor bronze strips for pickups,
if you are old fashioned enough to use track pickup.


1.5mm cheese head self tappers to hold pickups in place.


Wheels to taste on 2mm axles 


Tom




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