Mendel90
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Release status: Experimental
| Description | A Mendel with flat sheets at 90 degree angles
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Mendel90 is being designed by Nophead to replace many of the threaded rods and printed parts of the [Prusa Mendel] with flat sheets, either MDF or Acrylic. It's advantages compared to the Prusa Mendel are:
- Stiffer, especially in the X Direction, where it is most important
- Much less calibration and jigging required; if your holes are in the right places, your rods will be parallel
- Can be drilled with a paper template to make sure all holes are perfect
- Sheets are usually straighter and flatter than rods, as they are thicker and much wider
- All the OpenSCAD files are fully parametric; you can set all the parts to whatever sizes you want
- Everything is mounted on one of two planes, so it's all flat
- Frame is held together throughout the machine, instead of just at the corners, so no warping
- Open design, allowing it to be worked on easier and mostly dissasembled without falling apart
- Z axis motors are at the bottom, so that the couplings don't need to support the weight of the X axis
- This means the Z couplings can be smaller, and therefore Z smooth rods closer to the threaded rods, increasing stiffness
- The center of balance is also lower, making it more stable
- Less printed parts, so it can be printed easier and faster
- Parts are ribbed to maintain strength and decrease print time
- Ribbon cables are used to prevent cable tangling and friction
- Rectangular, so it can be shipped and put in Heated Build Chambers easier.
