Hello,
I recently purchased a new TREX (3 channel) to replace 2 ESC’s on a 3 pound beetleweight bot with horizontal drum spinner.
Currently I use a Ragebridge for the 2 brushed drive motors (25mm 6V 220rpm 1:45 gear ratio), and I use a Pololu 24v23 5.5-40V, 23A Motor Controller for the weapon motor which is an 18V drill brushed motor. A single battery powers both (2S 7.4V LiPo 1100mAh high output) for about 6 mins. The 2 ESC’s I currently use work well but I wanted to save some space and weight with the Trex.
I realize with the Trex the weapon will be uni-directional but I will just need to deal with it when the bot gets flipped. I like the channel 4 flipped mode of the Trex though, that should help with driving when flipped.
I’m looking for advice on a few items (so that I don’t immediately damage the new $100 controller):
I would like the mount the Trex to the bots carbon fiber body. I would like to bolt it but am considering tie-wraps with cushioning since I don’t see any dedicated mounting holes on the Trex board. I’m also considering coating the underside of the Trex board with high-temp gasket sealer to prevent any unintentional shorting underneath. Any thoughts on whether any of these suggestions would damage the device due to cooling issues would be appreciated.
Another question I have is what type of response should I expect from the auxiliary motor if I solder the diode on backwards? I’m currently using a Skyfly transmitter with a dial to control with weapon motor. It allows me to ramp the speed in both directions. Would this be a problem for the Trex if I ramp the speed in reverse even though it would be a uni-directional motor?
-Mark