This time I have upgraded to metal geared servos however they are still locked to +/- 90 degees and so they need modifying for continuous rotation.

Here I am using 2.2k ohm 0.1% tolerance smt resistors to replace the potentiometer and trick the servo into thinking it’s locked in one postion.

Last time I used some random through hole resistors I had lying around and when it came to trimming the servos there was a lot of drift, far more than I could correct for, so this shall be a big improvement.

Tiny!

Here is the new chassis after printing, I’ve made a few changes to improve the strength where needed and cut some excess weight.

And side by side with the old chassis.

Well that’s my 1st robot wars competition over and done with and I can say I have much to improve on !

Movement – Servos modified for 360 degree rotation have lots of drift and thus slowly rotate when you want it to happen least. Use proper servos or motors and drivers.

Battery life – 300 mAh batteries are fine but excess weapon motor useage will deplete them. Locate the charging port to somewhere that’s easy to access for charging between rounds.

Amour – All cables *must* be projected from cut damage or you risk losing the round early as the green machine experienced.

Overall though I felt I did alright and got through to the 3rd round.

Video recording of the event by BEEES

This is robot being weighed and measured before the start of the competition

The next few updates shall be a brief collection of pictures I’ve taken during recent projects.

3 stages of chassis prototyping

Final chassis