Connect additional stepper motor or servo motor to UR robot

Hi,
For a project I would like to connect a linear axis to a UR10 (CB3.1 controller). The mechanical part of the liner axle is already in place. But I still need a suitable drive. A drive that I can connect to the robot and control it from the robot program. Since the motor requires very little power (appr. 1Nm), it can be a stepper motor or a servo motor. I know that there are already ready-made packages available that contain the linear axis and a suitable URCap. However, these are very expensive (>10K). I already have stepper motors from previous projects (from https://www.oyostepper.de/). Is there a possibility that I can control the drives myself without the URCap from the robot? Or is there a cheap URCap where I can use the existing drives? I am thankful for every hint. Thanks in advance.

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Hi @ben22 and welcome to our forum.

Which stepper motor do you already have?

Also, what is URCap? I haven’t used Universal Robots devices.