@@ -147,7 +147,7 @@ Possibly look at the Voron V1.8 for this.
### Frame
For the outer frame of the design, we start with the Hypercube Evoution design by thingyverse user Scott3D which has a boxed construction that has been tried and tested for rigidity and stiffness. The boxed frame is also easier to enclose which is necessary for printing ABS that requires a controlled temperature environment for good layer adhesion. The enclosed frame is also more importantly kids (and pets) friendly. The frame squareness after building can be verified by measuring the opposite diagonals. If they are the same you know have a square structure.
### Mechanics -- C
### Mechanics
The design uses the CoreXY mechanism whereby the motors for the X and Y axis are fixed to the frame, which makes the X carriage that carries only the print head lighter than a conventional Cartesian design which has to carry the X axis motor. This should allow higher accelerations and printing speed.
### **CAD 3D Model**
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@@ -164,9 +164,9 @@ According to this [Discussion](https://www.3d-druck-community.de/showthread.php?
2. Linear ball bearings LMXUU (with X for shaft diameter) - Less smoother than bronze bushings but also louder. They are more forgiving of misalignment. They are also less susceptible to wear.
3. Igus bearings (special polymer bushing) - similar to bronze bushings and are also susceptible to slip-stick effect.
#### Xcarriage Design
#### X-carriage Design
The current X carriage design has a vertically stacked linear rods design with 4 LM8UU bearings on the rods. The spacing between the X carriage rods is 45 mm. On some tests there seems to be some sticking of the bearings. Some users have debated the use of 4 or 3 bearings on the X-carriages. Normally 3 points are sufficient to fix somthing on a plane, and the fourth is over stabilizing. From various posts as well as the reliable Prusa I3 design, the 3 linear bearings seem to be the more teseted design.
The current X carriage design has a vertically stacked linear rods design with 4 LM8UU bearings on the rods. The spacing between the X carriage rods is 45 mm. On some tests there seems to be some sticking of the bearings. Some users have debated the use of 4 or 3 bearings on the X-carriages. Normally 3 points are sufficient to fix somthing on a plane, and the fourth is over stabilizing. From various posts as well as the reliable Prusa I3 design, the 3 linear bearings seem to be the more tested design.
[Discussion on the use of 3 or 4 bearings](https://reprap.org/forum/read.php?1,273993)
