Unfortunately the manufacturing company did not supply the university with any AMP integral electronics, or a dedicated APM-Electronic unit, hence it has become my duty to obtain one.
Why not contact the manufacturers if you want to obtain one of those units?
explain what a "dedicated APM-Electronic unit" is?
If you've ESA level finances, I'll set up a team and have a go
unfortunately I can't go into much detail into the specifications as i cant seem to find much information about it,
I recommend the OP investigate these if the object of his project is antenna pointing rather than resurrecting old stuff.
It was intended as a finetune for pointing an antenna in a zero g environment.
It seems to me the business of keeping a satellite antenna carefully oriented is very different from one mounted solidly to good ole mother earth. I presume the movement of the antenna could upset the orientation of the satellite.If the OP is trying to design something to be used in earth orbit, I think we should be told.It's beginning to look like yet another XY-problem....R
.....If he is intending to use it in a earth environment it can't supportthe kind of load it was intended to use in zero g......... He has asked if a arduino could be used as the uP part of the controland I see no reason to think it couldn't. The steppers would requireappropriate buffering. Being unipolar, this could be as simple assome N-channel power FETs.....
He has misquoted one of the specs, indicating that he does not understandmechanical units. Should he decide to use this mount he shouldfirst understand the limitations and what they mean.
If the OP is trying to design something to be used in earth orbit, I think we should be told.
As with regards to the Arduino, my thoughts was use a frequency generator for pulse control, which would allow for movement of the motors at a given speed, then using and Arduino card coupled with the frequency control card, thus allowing for a certain number of steps to be taken by the gears on the motor, allowing for a certain pointing angle to be achieved,
You must have changed it because I don't see it anymore.At one point you had the load as 50Kgm^3. Inertial load is Kgm^2.
As an example, a LASER in the center pointing straight up.Depending on which direction, both would be running at the sametime. For one particular direction both would be running at the samerate. Other direction would have different rates.If you were tracking a line that didn't cross straight up, the rateswould be changing all the time.
Do note that it has sensors to limit the travel. I don't know if crashing itoff the end will damage it but you should be in control of themotors enough to know when you are at the limits.
... how a device intended to hold position needs to move "at a given speed". Surely the essence of the machine is that it does NOT move except in occasional small increments to correct the position?Unless a very high frequency is required (what is the frequency?) the Arduino can probably generate step pulses without a separate frequency generator.
... what is the value of getting this particular machine to work compared with building an equivalent machine with familiar components?