Leadnut adapter for RoBo 3D trapezoidial Z-axis threads Tr8x1.5

thingiverse

This is a mod that enables you to change the Z-axis threads from imperial or standard metric to trapezoidal threads as offered by https://hfbshop.de/. Note that those rods come equipped with nuts requiring a 17mm wrench size, which will need an adapter to fit snugly into the 13mm holes of the X-Z axis brackets. Be aware that depending on your previous rod's thread specification (for example M8x1.25), you may have to adjust the steps per mm in your firmware or risk objects being oversized in the Z direction. In fact, adjusting the layer height in your slicer should also be considered. Generally, I use either 0.09, 0.12 or 0.21 as my default layer heights without worrying about Z rounding errors - for a more precise estimate, visit Josef Prusa's calculator page. Instructions: Critical: * You must print this part upside down. * Duplicate it; you will need two of them. * To ensure adhesion to the build plate, consider printing with a brim unless your printer features an extremely sticky bed surface. It should fit fairly snug but is designed this way - avoiding any unnecessary gaps that might develop if standard rods are used instead.