Open the RDworks software . User — read parameter.

Then do like this . vendor setting. password: rd8888

Password : rd8888

You will see like this.

1 Graph length(mm): you design length.
2 Measuring length(mm): the real distance.
Here is an example:

After cut, you measured the real distance is 498*498
so you can dso like this:

Then do not forget to write the parameter change to the machine memory .like the picture show.

Ok, finish, here the example for x axis, y / z the same steps to change.