Staind XL rc tank automated rubber band gatling gun

thingiverse

Made up a gun mount for the turret platform ..added a laser pointer for aiming and used the 32 round rubber band gun ..https://www.thingiverse.com/thing:3904720 I just used a 3mm drill bit to mount it to the tilt base and to attach the laser pointer to it... Need to print the base v3 standing up for added strength and use supports and also the gun barrel i used supports ..I used Overture PETG but im sure PLA would fine ..Use high infill on parts like the tilt base and the clamps ect...Might need to do a little sanding here and there ect as usual...Everything uses the the cheap Tower pro 9g servos..I had trouble with the original servo gear printing the splines, i can never get those to come out rite so i redesigned it to use a trimmed down servo horn and also thinned it down a bit cause it was rubbing the turret platform...Thinking about redesigning it to use a GT2 belt cause it is way to touchy due to the over size of the servo gear makes the ratio to high for small movements.. Also on the laser pointer i used a dremel tool with cutoff wheel to remove the back side where the batteries go and soldered wires to it so it can be powered from the RX 5 volt rail ..If you get the wires reversed it wont hurt it..I simply slipped one of them under the clamp to make connection with the body of the laser.. Sorry the pics are inverted i tried rotating them on both my phone and computer and they still upload inverted..:( I might try taking more and see if they come out correct.. Enjoy!! Update: Came up with a much better solution to the turret ..I made it to use a GT2 belt instead of the gear system..Now it is much less sensitive to inputs and much easier to make small movements left to right and no backlash..I used a belt from a old Walkera rc heli and cut it to length then spliced it with crazy glue and put a small piece of heat shrink tubing around it and it works surprisingly well..You could if wanted use a continuous rotation servo and the platform would rotate 360 degrees.. Added a couple of pictures and again they loaded incorrectly..