Quote:
Originally Posted by Omaroo
Very interesting Bojan - I'm looking at a Mel Bartels system for my to-be-re-engineered EQ5. I was just about to start constructing the PCB for the following stepper controller: http://www.bbastrodesigns.com/steppercircuit.html
What's this plan of yours in monetary terms?
Cheers
Chris |
Hi Chris,
one of the boards I designed (in Protel) is based on the very schematic you are looking at, I only added the stepper driver for field rotator driver and keep alive circuit (with relay). Also, the connectors for motors are different (2x3 headers, the motors can be reversed by reversing the connection), and the size is euro-card (100x160mm). The smaller board is ~60x70mm, it is designed to be directly plugged into LPT port (with separate power supply, of course)
In monetary terms.... I am pretty sure that there is no significant enough production volume & money in it (considering the size of that market and the fact that the design is pretty mature) so at this stage, I would just like to offset somehow the cost of manufacturing for my own set of PCB's.
I think I can fit 3~4 of each boards on the A4 panel.
At later stage, we shall see..