Hi folks,
I have inherited a XY table that was use to taked samples from a plate. The axis can move about 24 x 17 inches or 60 x 45 cm. The X stepper drives a belt, the Y stepper drives a long lineshaft(?) along the X axis, that in turns drive a belt. The steppers are PK268-03B (3V, 3A, 200 steps per turn) - datasheet attached (see page 241) if it helps.
How do I set my "Motor Tuning" variables, since I don't know the specs of the belts and the lineshaft?
The wheel (sorry don't know the proper term) driving the belt has 32 teeth, the belt has 1 tooth every 5mm... I guess it means that one turn of the wheel should move 32 belt teeth, or 16 cm... but if I turn the stepper manually one full revolution the X carriage moves about 8-9 cm (some calculations must be wrong here...)
So I assumed 3200 steps for 80 mm, or 40 steps per mm. If I use these settings... the steppers get noisy, but nothing moves.
Also, the table tends to vibrate at lower speeds... is there a rule of thumb for smooth operations?
many thanks for your help -
Thomas