Planetary Rover – Chassis Build Part 2
Credit where credit is due, my chassis, at least the drive section, was heavily inspired by this video: https://www.youtube.com/watch?v=3Zx7t…
- Drill Bits
- Dremel with a cut off wheel
- Soldering Iron
- solder (leaded, lead free sucks, but do not eat it)
- Socket Screw Driver
- Tin Snips
Let’s Get Started
The first part of this section of the build to look at are attaching the couplers to the motors. These couplers make it easy to attach any wheel that connects via a 12mm hex to our motors. They attach to our motors 6mm drive shaft with grub screws, it is important to position them on the shaft so that there is clearance for the leg itself and in the future the hall effect sensors for proper wheel encoding.
Attach the motors
Now we have a little trick to attach the motors, it appears that the motors themselves are only a bit smaller than the internal diameter of the pvc, as such a couple relief curs and a hose clam should do the trick nicely.
So our first step is to remove all the pieces that will have a motor attached to the from the frame. In each of these we will cut two 3 mm relief slits across from one another, each approximately the length of the dreamers cutting off wheel or 2.5 cm.
Then we slide over a hose clamp, insert the motor, and tighten the clamp down on the motor as much as possible. This will produce a nice strong physical connection.
And that completes the physical build of the drive section. Now on to the electronics!