Caution: Random Thoughts
I started printing the Tub and differential for Rover 3.0. This time I am using PETG plastic. I got the Amazon Brand stuff because it was cheap. You know what, it’s great I recommend it.
Note: I have switched to Overture filament; it is the same quality.
The Servo is for the Camera Mast. I have no idea if this first mast design will work, but you never know. I have confidence in the connection to the tub and the servo placement. So the mast may change. More information on that soon. But I did figure out how to run the wires through the rotating mast.
The updated diff is working well, the only update was to the middle gear axel, it now has a stopper on it. You might have noticed the masking tape on the bearings, I made the socket a little too large, but it works with a couple of laps of tape. I will have some grips/locks printed soon to keep them in place. I also printed out a tool that fits between the gears. It makes it so much easier and safer to pound in steel tubes.
The printer takes 20 hours or so to print out the tub, and I have 3 of them. 30 hours to print and 10 min to screw it together.
I did a heat test today, I put the thing out on the hot fake grass for a few hours. I was over 100 out and no melting. Yea PETG!
Don’t worry I will make a complete how-to build this rover once I have the sandbox one built. I will need to build another for the desert.