Re: re:Compucut ?

Thanks,
I've been downloading and printing out quite a bit of stuff on
steppers and am trying to understand some of it.

I tend not to use the HPGL Pen Up and Pen Down, the main commands I
use in Roland's version of HPGL are,

V: Velocity
F: Feed
Z: followed by X,Y,Z coordinates

so to cut a sphere I'd specify the initial speeds and output many
lines of Z x,y,z data corresponding to it's shape, there's some more
info. about this and my use of the Roland at:
http://project.rainnea.com/ if anyone's interested.

I suppose the above commands won't be in any HPGL standard, how much
variation is there in the G code standard, does every company use
it's own interpretation ?
There must be convertors between the different formats ?

Thanks again,

Rab,

PS.
Here are some interesting hits I've encountered today on UK sites:
New and used steppers, not sure if any of these are powerfull enough
to be usefull, but a good site to bookmark anyway;
http://www.distel.co.uk/asps/all.asp?TR=17

These following two products seem to put the compcutter in
perspective price-wise. Servo controlled robotic arm kit including
servos from £179, http://www.milinst.com/tecpage.htm and a 3-Axis
Machine kit including steppers from £189,
http://www.milinst.com/drilpage.htm ,I don't know how real-world
usefull they are, but pretty interesting for messing around with at
the price ?