After a great year with the HyperCube by Tech2C and many kg's of printed filament I wanted to change the sloppy Linear rods and bearings in the X and Y Axis to something more rigid. Of course i could have spend quite some money with switching them out for quality rods and bearings or maybe also upgrade to a higher diameter but in my opinion this would also just be a compromise since they are only supported at both ends and can flex quite a little, especially in the middle of the rods during quick movements or at certain frequencies. So i think the advantages of Linear Rails like the Hiwin MGN ones for example (or even their chinese clones) against linear rods are pretty obvious.

I spent something around 40€ for:

• 2x 250mm MGN12 rails (Y axis)
• 1x 300mm MGN12 rail (X axis)
• 1x 393mm 2020 Aluminium Profile (X Axis)
• 25x M3 Nuts
• 25x M3 T-Nuts (For mounting the rails to the aluminum profiles)
• 4x M5 T-Nuts (To mount the 2020 X Axis profile to the XY-Carrier)
• 25x M3x8mm cylinder head bolts (For mounting the rails to the aluminum profile)
• 16x M3x10mm cylinder head bolts (E3D-Mount & MGN-Blocks)
• 6x M3x12mm countersunk bolt (For the beltclamps)
• 4x M5x10mm button head bolts (To mount the X Axis Profile to the XY-Carrier)

Everything else can be sourced from your original HyperCube. In case there is something missing, please leave a message so i can add the missing parts to the list.

Print everything once except for the BeltIdlers and the BeltClamps, we will need two of them. The printing direction should already be correct as seen here on Thingiverse.

Feel free to leave a question or improvements in the comment section! :-)

HyperCube

No

No

0.25mm

30-50%

The parts were printed with a 0.6mm Nozzle mounted on a volcano hotend.
I used PLA because of it's stiffness, even though it's more brittle therefore but compared to for example PETG it has less flex which in this case is preferable over the elastic toughness of PETG. It will most likely break before swinging, resonating or flexing a lot during the rapid moves(acceleration, deceleration & changing directions) of the mounted hardware (mass). With PETG the point of failure will probably be further away than with PLA and would require even faster moves or higher moved masses but therefore as mentioned it'll flex much more under load which we may notice later in the print result.
When printed correctly (good layer bonding for example) the parts printed in PLA won't break most certainly!