AFUNTA 5 Pcs Flexible Couplings 5mm to 8mm Compatible with NEMA 17 Stepper Motors, Used in Small CNC Machines & 3D Printer Prusa i3 or ORD Bot with 2 Pcs Allen Wrench

Works well, used on two, slightly offset drive shafts.

Very durable and a great product!

Why did you pick this product vs others?: Fixed Z wobble. Putting them on all my printers

Replaced the ones I had on my e3v2 for my dual z as they seemed to be defective and these were a hell of a lot better. Work great, definitely recommended.

Chinsium alloy....

piezas utiles para proyectos de robotica.

It comes with two Allen wrenches. 5 x 8 mm couplers.

The primary issue I encountered with every coupler in the pack was that the holes were drilled off center, which was the main cause of the problems I experienced. It's worth noting that the shape itself was fine, but the machining quality was incredibly poor, resulting in noticeable burrs. In my opinion, these couplers should be removed from Amazon due to their subpar quality.

They are perfectly machined an seem to be of good quality aluminum. The 5mm and 8mm holes were spot on with absolutely no play whatsoever. I think these little connectors will greatly improve performance ... specially for a smaller machine like the 3018 which may get out of square when moved around.

Added these with the ball bearing on my Endur 3 V2 installed with a dual Z kit. Working extremely well and has definitely improved printing quality, highly recommended.

取付け穴はΦ６側が小さめ、アルミなのでドリルで拡張簡単。 もともと芯ブレを吸収する部品なので精度はあまり要らない。

Producto estándar de buen precio

good price