Barnsley-Bill

It looks brilliant Sam' and as you say, it should be miles easier to copy rather than make one like the wasp.
I'm lucky enough to have a mate who works at a laser cutting company' who cut me most of the parts for mine 'free' but I had to pay to get them all welded up which adds to the cost.

I have just to make some rollers for the tape on mine then the building part is finished' and once I get my stepper bee + back from a lad who's been looking at the software I should be able to have a go' but this will be after the Christmas holidays as I've been running around like a headless chicken the past few days' the worlds gone mad'.

I wouldnt mind trying some too mate.

I agree the shorter the time interval, the faster they rotate.and to work out the algorithm set them to a slow speed and it will be easier to work out the steps and follow the pen line on a dummy shell.
And looking at Ned's manual we could work out different tape widths and settings out of his formula .

yes mate.

I should have all the parts welded up tomorrow to finish mine' as I had to make some different plates for the motors as mine are NEMA34 and are bigger than the NEMA 23 ones' so they were too low and wouldn't work with small shell's.
I also have some spares to make one' if you want any let me know mate

I think you have it bang on

and just reverse the other motor a few steps to see how far it skews the shell.

I'm going to ring Phil next week to see if he will send me 1 shell casing of each size then tape and paint them ready for when I've finished mine and have a go with the stepper bee software' that's if my mate doesn't get back to me with the software he's trying to decompile.

it may take some working out with each shell and adjusting after each layer but once its done we should be fine.