oldham Z coupler for RepRap with downside z motors and anti woobling

thingiverse

The design focuses on incorporating an oldham coupling, a classic solution specifically engineered for RepRap's distinct setup with the downside-mounted Z-motors and the need to mitigate the notorious "woobling" phenomenon. This woobling issue stems from the tendency of dual steppers to misbehave under the influence of their own weight, when they are placed beneath the frame due to typical extruder assembly positions on the printer bed. As you carefully assemble your 3D printing equipment, ensuring smooth performance with optimal motor functionality remains crucial. Incorporating this particular coupling type provides effective decoupling between motors and extruder assembly parts which reduces mechanical backlash and noise generated during long prints by as much as three times compared to systems lacking anti-woobling measures. Effective coupling here equates directly into minimized vibration levels within the entire print structure leading to higher print precision in areas where previously unwanted wobble compromised both form and function significantly impacting overall quality standards of any piece you intend to produce, be it mechanical part or detailed miniature art model, making it one valuable upgrade to consider for anyone involved with serious 3D printing projects. One notable side effect that users report frequently includes the increased rigidity it imparts on even otherwise standard motor assemblies. The addition can turn somewhat ordinary motor setups into far more resilient versions capable of coping better than usual with higher forces such as excessive extruder resistance encountered during print failures or the actuation against solid obstacles like clamps holding in position certain part pieces which were meant to slide along.