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« on: September 01, 2017, 05:14:15 PM »
Hi and thanks for your answer joeaverage.
You are right about the encoder, i just couldn´t remember the excact number but you got it straight on.
The driver is a Bosch Rexroth DKC01.1-040-7-fw and the motor is a MKD090B-047-GG1-KN. The manual can be found at Bosch´s homepage, i have it but there is nothing about getting it to play within Mach3 or other like that.I have set the driver up with the software that belongs to this system so i am sure there is no errors there.
I think the only reason for the dro speed and actual speed is not the same must be because of the quality of the signal from the parallelport witch is changed to a differential signal with a driver called AM26ls31. I just ordered a smoothstepper today so i hope that will fix all of my problems at the same time.
I first set the step prr rpm to 200 cause this is what my steppers have too, but this made the motor really noisy and full of hard vibrations, and found out it gets better the higher i set the steprate. the 25 kHz is like you say not enough to get it running smooth cause the higher i set velocity=step pr rpm the lower the max speed gets, so smoothstepper and 4 MHz should fix that problem. Just hope the pulses is clean enough for my driver so the speed equals the actual speed. By the way is the only way to get an active "actual speed" by giving Mach3 a index signal from a proxy switch or similar. Again my mind tells me that in step mode what i ask for i s command should be precise what the actual speed becomes.
Whops saw you wrote more,,
I want to use step dir because then i can build a little bridge with a spindle so i can mill stuff like gears and put precise holes in a circular object, thinking i can use the spindle as a axis when i do this stuff. To begin with i also wanted this so i could do threading with total precision, cause mach3 would know precise were the spindle is all time and not only once pr rpm with in index way. Found out later that Mach3 was not even able to do threading this way, but still the axis need is there so fine with step mode. (maybe i have to give up upon it due to the vibration and noise but time will tell when smoothstepper is installed.
I am no electronic expert so sad to hear that i can´t even take advantage of the 4 MHz from ESS but i will look into what this electronic gearing is and were to get it/ how to build it.
I really appreciate that you take your time to help me out here. Thanks a lot.