Hello Everyone. Not sure if this is the right Forum to post, But the concept is the same.I would like to build a Traction Loss Platform like this: This is the text in the post: " For the motor/actuator, I'm going to use the same motor that I use for the 4 legs actuators. They are 180w integrated servomotors. 'Integrated' means that the driver are built in inside the motor assembly. But for the TL, I'm going to couple the motor with a 'linear motion guide rail' that I found on aliexpress. I don't have a picture but this linear rail perfectly match the motor that I am using (nema 23 size). With 5mm pitch, the combination can push up to 80kg of force at low speed and around 60kg at around 100mm/s (given the power is only 180w) " I would like to Buy from this site, because it looks like I might find what I'm looking for. I can build the Platform, but I would like some guidance on the motor, rail, and software. Thanks for looking, and Thanks for any input. Bob.