M2 Assembly Guide 2_0

M2 ASSEMBLY GUIDE

M2 ASSEMBLY PART 5: ATTACH M2 TO FRAME

ROLLER BEARING CARRIAGE

1. Hold M2 sled against the wasteboard near the right chain.

Hold it against the frame with your body weight or have a friend

help by holding it for you.

2. Take the loose end of one chain and thread through hole in

the roller bearing carriage built in Part 1. Insert A1 cotter pin to

into second to last chain link to attach.

3. Move M2 to center of Wasteboard and have a friend pull the tension on the opposite chain to around 20” from the nail to the

spring. You can pull the chain away from the motor sprocket, pull for more length, and set it back to for the tension to hold, but

beware of it pulling! When you have enough slack in the chain, thread through the opposite roller bearing carriage and attach with

the other A1 cotter pin into second to last chain link.

Drew’s Note: We recommend wearing safety goggles and having a friend help mount the sled to the frame. The chain can

slip off the sprockets, causing the spring to snap and hurt people, pets, and surroundings. It’s also important to insert the

cotter pin into the second to last link, for extra safety of the chain attachment, as shown below.

Drew’s Note: Let go of the sled and

it should rest against plywood or

MDF. Your M2 is ready to calibrate!

(Also, don’t forget to attach your

bricks, if you waited until it was

mounted).

This work is licensed under the creative commons Attribution

Non Commercial-No Derivatives 4.0 International license. Last Updated 1.18.2021

Version 2.0