Go to Post So, we should have respect for each other regardless of whether we are building our robot with a Waterjet or a Hacksaw. Construction methods will vary widely, but honoring your competitors should be universal. - OZ_341 [more]
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Unread 06-09-2003, 11:37
Tristan Lall's Avatar
Tristan Lall Tristan Lall is offline
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Quote:
Originally posted by Tytus Gerrish (in the caption for this picture)
It SO! works

With a standard, and a micro lego motor, tested using my fingers as a load

with an unmovable load the motors don't Overpower each other they just stall and don't move. NO moving bakwards

i admit these are just legos and a true test is required
Tytus, do you have the rpm and power on hand of each of those motors (i.e., how similar are they)? I'm curious as to whether the differential was actually working as anything but a fancy shaft (if the speeds were identical, the housing of the differential would rotate, but the bevels inside wouldn't turn--hence, a shaft).
If the differential were matching speeds, then you might be at risk of stalling one or the other (as Bill Beatty suggested in the other thread), depending on the conditions of the test (e.g. relative power and relative speed of the motors--speed would have to be different, and power similar). You should also note that these are small brushless motors. Stalling these is no problem, but on the FIRST robots, the motors are not nearly so pleasant when they are stalled.
In short, while it may work now, it probably isn't an accurate enough simulation of a Bosch 3360 and a CIM FR801 (like you admitted...).
-Tristan Lall

Last edited by Tristan Lall : 06-09-2003 at 11:44.
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