Bear X axis for E3D Hemera (Patreon)

You might have seen a teaser for the E3D Hemera I published today, here are some more details exclusively for you.

Current features:

• All wires go to the back like Prusa and Bear
• Will be compatible with stock Prusa and Bear 
• Almost access to full bed surface (we should loose 8-10mm on X only)
• New Bear X ends are needed (more details below)
• Will have all features of the Bear X axis
• Take care of the cooling of the heatsink
• Will need custom firmware for MK2.5(S) or MK3(S) due to a different Pinda position. MK2S share the same Pinda position so no firmware modification required. On a Bear frame you could move the Z axis back and use Bear calibration firmware.

The new Bear X ends will come with few new features:  more room for the extruder, increase stiffness a tiny bit, self center the X axis stepper, reduce risk of warping and maybe something else...

What still need to be done:

• Wiring of the Pinda is not easy (last picture) and needs improvement
• Wiring of stepper needs to be cleaner
• Designing a shroud
• Improving the look
• Developing a custom Prusa firmware for the Pinda position on MK2.5(S) and MK3(S)