When assembling the UTM, we had already read that connecting the 12 wires would b demanding: “You just finished the most tedious and arguably difficult part of building your FarmBot. Take a deep breath, do a stretch, and grab a snack - you deserve it!”.
Difficulties to overcome:
- reading the small figures (1 thru 11) on the thin wires, yellow/green cable being number 12,
- crawling on the floor (near to the ground) when you have installed the tubing and cables in the z-axis cable carrier.
- stiff cables/tube contraption to work with when trying to connect cable ends,
- connecting screws and (12) cables through the use of the small tie wraps requires at least 3 hands. This ‘solution’ to connect, is not the nicest nor (we think) the most secure…
Having finished the assembly the UTM, we can only recommend others to assemble the UTM prior to the installment of the z-axis cable carrier (step 3). You can do the wiring up sitting at your workbench, with a magnifying glass and other right tools at hand.
After step 6 of the chapter "Wire up the UTM’ and before the Woo hoo ;-), we recommend that you test the 12 connections: does the #1 wire from the one end make a reliable connection with the #1 contact screw (“A”), and so forth… (a multi meter with continuity indication comes in handy).