Prusa XL modified CoreXY parts for new O-rings or Washers with LDO Idler Pulleys 10mm

>>>This remix has not been printed and tested by me yet. But everything should be correct :)

Hello XL makers! 

This i a Remix of a few Remixes :D Thanks to all of them <3

Lukáš Kupec, sshyshak, Racemade3D, racerethan, Prusa Research

This remix was made for pulleys from LDO or Gates that have a thickness of 10mm. The original pulleys are made by Prusa itself. These have a thickness of 9mm and cost just under 6 euros at Prusa. Since it's best to replace all of them at once on the XL, that's a total of 10-12 pulleys. These pulleys from Gates or LDO are available from 2-3 euros each.

In addition, there have been new spacer O-rings for the Prusa XL since the middle of 2024. Just a few weeks later, Prusa changed this again. They now use black nylon washers.

This remix is only compatible with the new O-rings or the new Washers.

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Print Settings:

• 0.4 or 0.6 nozzle
• 5-7 perimeters
• PC-CF or PA-CF
• 0.25mm layer high 
• min. 30% Infill 

The layer height should really be 0.25mm. I had problems when I printed it at 0.2mm, because the pulleys had too much play.

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It is recommended to use 10 smooth and 2 toothed pulleys. There are 2 pulleys on the XY carriage where the belt touches the pulley with the toothed side. To prevent the belt from deforming, toothed pulleys should be used here.

They must have the following designation:

GT2, 20T, 6mm belt, 3mm bore, toothed, 10mm width.

The pulleys can be found here, for example:

https://meltbro.de/gt2-umlenkrolle-pulleye-20-zaehne-3mm-m3-bohrung-fuer-6mm-zahnriemen-2gt.html

https://www.filastruder.com/products/gates-2gt-idler?_pos=1&_sid=1d42bf29e&_ss=r&variant=32673878442055

(Click me if you only want to use the toothed pulleys only)

There are also many suppliers of these pulleys on Amazon, eBay or Aliexpress. However, you usually only get cheap no-name pulleys there. That's why I remixed this too.

Additional Hardware required:

• 2 sides x (3) M3 x 15mm thru 25mm socket head cap screws
• 2 sides x (3) M3 (3.4mm actual) spring roll pins, min 10mm length, I used 20mm!
• 2 sides x (8) M3 heat set inserts (for 4mm hole) 
• 2 sides x (2) M3 heat set inserts (for 4mm hole) 

Instructions and further information can be found in the main project of @StevenShyshak_652273

https://www.printables.com/model/683762-prusa-xl-modified-corexy-back-parts/

For new O-rings or Washers and LDO Idler Pulleys with a width of 10mm (20T 2GT, 6mm Belt, 3mm bore)