Railcore rotated Z yokes
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Gain up to 16mm in X travel depending on your hotend/fan combo. No loss of Z travel.
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
- License
- Creative Commons — Attribution
In the original Railcore II design the X axis travel is limited by part of the Z yoke blocking the heatsink fan on the low side of the X axis. On the high side of the X axis, is the part cooling fan that collides with the the Z yoke.
This design resolves that by moving the part of the Z yoke away. This results in up to 8mm per side extra, for a total of 16mm. There is no reduction in Z travel despite the increase thickness of the yoke, as there is a cutaway for the motor coupler to fit under the yoke at high Z height.
Given that no two Railcore printers are really alike, how much you can gain in X travel may vary. In my case (I'm using the E3D v6 hotend with hangtight's part cooling fan ) I gained 16mm.
Print one copy of the type A yoke (note the file name) and two copies of the type B yoke.
In order to install this modification you need to rotate each of the 3 Z towers (the aluminum extrusion) 90 degrees towards each lead screw, so that the linear rail faces the lead screw. Then, move each of the towers 12mm away from each lead screw and install the new Z yokes. Alignment procedure is the same as the stock design.