okay its finally finished

Here we have my completed functional 40k Chainaxe prop

the motor is a electric screwdriver attached to a 6 volt rechargeable remote control car battery pack. the base is a mix of cloroplast and pva foam

the trigger is a momentary switch in the axe handle, and the teeth are soft foam sewed onto a loop of velcro. the drive wheel is wrapped in the mated hook side velcro.

Its pretty sweet if I do say so myself
if you want to see how it runs video here
https://youtu.be/r7UTLhgIqnM