Scale in StepConf, not in Axis

Hi.

Hardware
Steppers: NEMA 23
Driver: L297 - L298, see att schematic.
X-Y Axis: M8 Threaded rod
Z Axis: M3 Threaded rod

Software version: Axis 2.4.6
Basic Machine config:
Axis conf : xyz
Units: mm
Drivertype: Other
Step time: 5000
Step space: 4000
Dir hold: 4000
Dir setup: 1000

Par port:
X step: inverted
X dir: inverted
Y step: inverted
Y dir: inverted

X-Y axis:
Steps pr rev: 200
Driver microstepping:1.0
Pulley teeth: 1:1
Leadscrew pitch: 1.22
Max vel: 9.0
Max acc: 5.0

Z-axis:
Steps per rev: 200
Driver micro: 1.0
Pulley teeth: 1:1
Leadscrew pitch: 0.8
Max vel: 4.0
Max acc: 5.0

With this setup in StepConf, the steppermotors are running fine. When I put a sheet of paper on the board, and use "Test this axis", all of them moves according to the "Test area" setting. So far, so good.

But when I start Axis and try to draw the "EMC 2.4/Axis" - default image, it is out of scale/proportions. It is too small. It is only 75mm long, and should be 188-something mm.

What am I missing?

- nerdegutta

sorry , can i ask to clarify, is it only the axis display that is showing short , or actual machine travel ?
and you say it travels correct distance when using the test axis screen in stepconf ?

it would also be helpful for you to attach the Hal and ini files from your config

I'm not in front of the Linux CNC computer right now.

I did some more testing, and found that with microstepping set to 2, both the X and Y axis are in scale. Weird?

I'll include the files in a later post today.

Thanks for reading.

- nerdegutta

ok , thanks for letting us know , you managed to find it by whatever means ..

ok , thanks for letting us know , you managed to find it by whatever means ..

yes setting the microstepping to 2 would fix , the reason is the L297 driver chip has a mode selection for what is called Full step and Half step microstepping , 200 and 400 steps
this is Pin 19 on your diagram . dependant on this pin being either grounded or lifted to 5V determines the step rate ..

I have a jumper on the JP2, setting PIN 19 HIGH. It seems to work now.

Thanks for reading.