I have been putting in long nights working on this rig. Unfortunately I am experiencing a number of problems.
Thursday night I bench tested everything with no wheels and it worked great. I installed the wheels, set it down on the floor, the front servo turned left, turned right, then it glitched, locked up and in 10 seconds the front servo caught fire!
Today I received shipment from RCP for an order of parts for another crawler I am planning to build. In that order was a new Hitec 5955 TG servo. So I tried it again tonight and the same thing happened. It worked normal for 10 seconds or so, then glitched and the servo got hot. Only I unplugged the battery before anything could thermal.
Also, the 23mm hexes are too narrow. The tires are rubbing on the ESC boxes and the body. I searched ebay and online looking for offset 23mm hubs to fit directly over the TTR CVD's and didn't find anything I liked. So after some thought I decided to modify the ones I already had that I wasn't going to use.
This is the stock plastic TTR hub with the 23mm adapter hex. It too wide for my taste and I hate the idea of the plastic hub:
In my opinion the plastic hub is the weak link. So in order to use the solid aluminum hex with a 3mm drive pin, I have to modify them myself.
Drilled with a 3mm bit for the drive pin and also drilled 8mm for the CVD hub.
Old 23mm hub that is too narrow:
New modified 23mm hub:
Thursday night I bench tested everything with no wheels and it worked great. I installed the wheels, set it down on the floor, the front servo turned left, turned right, then it glitched, locked up and in 10 seconds the front servo caught fire!
Today I received shipment from RCP for an order of parts for another crawler I am planning to build. In that order was a new Hitec 5955 TG servo. So I tried it again tonight and the same thing happened. It worked normal for 10 seconds or so, then glitched and the servo got hot. Only I unplugged the battery before anything could thermal.
Also, the 23mm hexes are too narrow. The tires are rubbing on the ESC boxes and the body. I searched ebay and online looking for offset 23mm hubs to fit directly over the TTR CVD's and didn't find anything I liked. So after some thought I decided to modify the ones I already had that I wasn't going to use.
This is the stock plastic TTR hub with the 23mm adapter hex. It too wide for my taste and I hate the idea of the plastic hub:
In my opinion the plastic hub is the weak link. So in order to use the solid aluminum hex with a 3mm drive pin, I have to modify them myself.
Drilled with a 3mm bit for the drive pin and also drilled 8mm for the CVD hub.
Old 23mm hub that is too narrow:
New modified 23mm hub: