|Oct 28, 2010, 12:54 PM|
Designing RC Control Sets for LEGO Bots
I take a largish Lego collection to various conventions where I allow others to build 'bots' onsite. They then run them through an obstacle course and arena combat competitions. Here's the problem. I currently have 2 functioning LEGO RC units (and 1 dead) and 3 functioning LEGO IR remote controlled units. This puts competitors on very unequal footing. So, I'm trying to build 6 control sets of equal capability. Step one: design the control set and obtain the parts. After much research I have determined I need the following
Transmitter/receiver pair(3+ channel) (cheap replaceable.. strangers and their children will be manhandling them) - Looking at the Hobby King 6 Channel for ~$30
3 x 10AMP Brushed ESC w/ reverse, no brake (LEGO motors of the most powerful variety have a stall draw of 3.5amp and may be used in parallel on a single channel and all
LEGO motors are brushed) - Seeking a source desperately for these. The cheaper the better since I'll need 3 per control set.
Appropriate batteries for such either 3S 35C LIPO or 9.6v NiMH (motors are rated as 9v but have proven reliable at 12v)
Charger(s) to maintain the battery packs.
I've ordered the Transmitter/receiver pair for the initial prototype control set
Looking for ESC solutions, which it appears will mitigate the battery options.
Motor specs/comparisons of LEGO motors are http://www.philohome.com/motors/motorcomp.htm
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