Movement Inconsistency in X and Y axis

X-Carve Troubleshooting
1

Hello All,

I just build my DIY clone of X Carve using Arduino and grbl shield. 1000 mm size.

Issue 1 - Using Easel , when i jog X axis for 100 mm it sometimes moves 100 mm and sometimes it moves 98 mm. What might be the issue here.

Issue 2 - Below are the values that i found correct and after that the machine became very very slow when carving or jogging.

$100=5.00 (x, step/mm)
$101=5.00 (y, step/mm)

Please please help me.

Thanks in advance.

2

Check belt tension and the pulley on the stepper for slippage and also might need to turn up the voltage for the stepper.

3

Thanks Shane.

I assembled the belt very tight hoping that it will loosen up after some use.
I will reduce the tension and pulley grub screws when i get home tonight.

How to turn the voltage. I am using below components.
Nema 23
CNC Shield V3
A4988 drivers
24V 10A power supply (is this enough?)

And when i keep the parameters $100 and $101 to default values (250), for 1mm machine moves 50 mms at a very good speed.
But when i change the values of the params to 5 , machine slow but 1 mm is 1 mm (close)

Any solutions?

4

Have not messes with the a4988 but this might help in voltage adjustment