Big thanks to Dogman, Blog post on how to lace a wheel

Joined
Jun 19, 2011
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Location
Cheshire, UK
Today I rebuilt the rear 250w 24v hub motor wheel using 12g spokes from alibaba.

Couldnt have done it without the very helpful blog post by our very own dogman
http://www.electricbike.com/lace-hub-motor/

at first it was hard to get started. I was trying to do it with the motor on its side. Then i saw a youtube clip of a chap lacing with the rim and motor vertically held between two dropouts.

My solution was to clamp one side of the axle in the vice and lace from below 4 spokes at a time for a single cross pattern. Didnt have to measure anything since i matched the spoke lengths from the rusted ones i removed. Difference in gauge meant i had to drill the rim to enlarge the hole for the nipples but that was very easy.

I pretty much have everything to get this up and running again except a 24 volt brushless controller. The one i had i accidentally reverse polaritied a while back and saw the magic smoke.

Another cool thing i noticed is the lefthand side thread which i could stick a southpaw acs free wheel on and do a hybrid hub and RC drive. cool thing would be it could all run of 6s so one battery to bind them all.

Its a joke of a Chinese frame but i only have £18 pounds of spokes invested thus far. anyone wanna donate a 24 volt brushless controller in the UK

anyway glad i did it cause learnt a good skill today. It is nearly true not bad for a first attempt.
 
Good for you! It seems really intimidating at first, but a 2x pattern is pretty easy to understand. Once you get it that you do sets of 4 spokes in a pattern and just repeat that, it gets easy.

The tricky part is getting it really true at the end. If you start out with a defective bent rim, you are hosed from the start. Getting the egg shape out of the rim can be the hardest part of truing for me.
 
yeah mine was a little out even after a lot of tinkering but probs good enough. My gf just blew another Golden motor controller and now im not sure whether to replace it or redo the fets Again.
 
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