RATTMMOTOR HBX1605 200mm / 7.87" Linear Motion Guide Actuator Double Linear Rail Slide 1605 Ballscrew Motorized XY XYZ Linear Stage Table Nema23 Stepper Motor for DIY CNC Router Engraver Machine

This is a great product bolted right up to my 3020 . Couple things to note it is a four slot in the back versus my three so it is over one slot, which is not a big deal for me. Also, the bolt pattern for most of the router mounts does not match up. It’s off on both sides so I drop it down and drill the new set of holes. It should be 30mm x 70mm and it’s not , but that’s not the end of the world for the price and quality. I I did put my stock Nema 17 on the top and there was no modifying to do that. It bolted right up as There was an extra set of holes.

I was hoping to replace the z axis on my DIY CNC machine with this but the rail blocks had way too much play to even be remotely usable. After mounting the spindle, I was seeing almost 1mm of deflection at the bit due to the linear rails and blocks having quite a bit of play. Depending on your use case, it might be fine but for my intended design, it was a fail

Excelente producto

We ordered the same part numbers (identical part numbers) about a month apart but received two different geometric configurations. This inconsistency has caused delays in our project timeline, as we expected identical parts.Additionally, the second part appears to have been used before.Please clarify whether there have been design changes or if this was a fulfillment error.

Built well. Sturdy, no slop on the bearings. Be aware, mounting hole dimensions are 30 mm x 60 mm. 5 mm thread size.

I received the item quickly and as described but the quality of the item is not acceptable IMA. the linear rails only have every other screw making them more likely to bend or break.