Tom Handley wrote: > Right now I'm considering starting from scratch... I looked >at Jameco and they have some powerful low-rpm DC motors with >internal gearing for around $15-$20. This eliminates an external >gear box. I also looked at the Robot Store and found a dual motor >gear box assembly for $20 but the shaft length is only 4". For >$39 they have a tracked bulldozer kit for $40 that uses the above. >It's out of stock until at least next month. It's also smaller >than I prefer (7"x5.5"). They have other motor gear box assemblies >for around $20. The motors use 3-4.5V. For more info: > > http://www.RobotStore.com > Hi Tom, Looked at their stuff - the 3-709 twin motor gear box kit at $19.95 looks pretty good, and the bulldozer looks very hackable. The tanks use a similar motor-gear arrangement, but this one is probably geared down more - good. Seems I saw that same bulldozer on several sites last week - so you might hunt around. Also, the bulldozer is "wired", not R/C, from the looks of it. Also, Toys-R-Us has a similar bulldozer advertised for only $19.95, and lots prettier [if that's what you are into]. You might check that. Maybe can steal the R/C from your car, and put it in the dozer. Alternately, the 3-709 motors go into a Dalek replica - that oughta scare the cat. best regards, - Dan Michaels Oricom Technologies http://www.oricomtech.com ========================= -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body