If you have a M5 metric tap and tap handle, I highly suggest threading the rest of the holes in the ends of the verticals.
All it takes is a M5 metric tap, a tap handle, and some 3-in-1 oil or WD40.
The holes are 4mm, which is the correct size to tap for M5.
I really recommend that you wait to install the steppers only until after the frame is assembled and flattened, in Step 15.
Otherwise the frame mounting screws are too difficult to get to, the motors are in the way.
A short cut section of heat shrink tubing would probably be better.
Slide it over the contact areas and heat shrink it.
Would also work great on the soldered wire ends.
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If you have a M5 metric tap and tap handle, I highly suggest threading the rest of the holes in the ends of the verticals.
All it takes is a M5 metric tap, a tap handle, and some 3-in-1 oil or WD40.
The holes are 4mm, which is the correct size to tap for M5.
I really recommend that you wait to install the steppers only until after the frame is assembled and flattened, in Step 15.
Otherwise the frame mounting screws are too difficult to get to, the motors are in the way.
A short cut section of heat shrink tubing would probably be better.
Slide it over the contact areas and heat shrink it.
Would also work great on the soldered wire ends.