stepgen.03.maxvel is too big for current step timings & position-scale, Clipping

Yes, that reduction drive does not look appropriate for a linear axis

tommylight wrote:

What does the reduction drive?

I need more strength.
This axle turns a car wheel, it doesn't have to run fast but it would be nice to run a little faster than now.

Picture, the motor with dribble is on the back, I don't have another picture right now.

Calculation:
Corner of travel: 360 mm / revolution
microsteps 1/2 =400 steps per revolution
reduction 40/1 = 16000 steps per revolution

360 mm = 16,000 Steps
1 mm = (1*16,000) / 360 mm
1 mm = 44,4444444 Steps / mm

Why is the calculation wrong?

yes LinuxCNC would like to have a linear axis for the Y axis, but this is round


 

Muecke wrote:

Corner of travel: 360 mm / revolution

Of what?
Nothing in that picture has a perimeter of 360mm.
what diameter shaft?
what wheel size?
what tire size?
Do you want to scale it to shaft or to wheel?

I used 360mm because that is the number of degrees of a circle
The shaft A has a diameter of 5cm (I think, I have to measure it).
The tyre can have a diameter of 40cm to approx. 110cm.

If you ask like that, I would do the dimensioning based on the shaft.
I have tested by hand a speed of about 7mm/second when I want to rotate the tyre under load.

It would be good if I could move the shaft at 7mm/second under load, more than that in rapid traverse.
At the moment I doubt that I can achieve these speeds with this gearbox.

 

Muecke wrote:

I used 360mm because that is the number of degrees of a circle

That makes sense only for a 114.594938724 mm shaft diameter.
For 50mm shaft
50x3.1415=157.075mm for one rotation.

Then this is the new calculation.

Calculation:
Corner of travel: 157.075 mm / revolution
microsteps 1/2 =400 steps per revolution
reduction 40/1 = 16000 steps per revolution

157.075 mm = 16,000 Steps
1 mm = (1*16,000) / 157.075 mm
1 mm = 101,862168 Steps / mm

Then this is the new calculation.

New value
SCALE = 101.862168

I will test it