Geeetech A30 Y MGN12H Linear rail mod

The steps are as follows:
- print 2 guides and the other pieces you need
- remove the heated bed
- remove the belts
- remove the bed
- apply the 2 guides
- loosen the screws that secure the 2 long Y 2020 bars
- place the bed with the printed guides
- slide the bed to perfectly align the 2 long Y 2020 bars
- tighten the screws of the 2 long bars Y 2020
- drill with a tip 3.5
- remove the 2 printed guides (You can trash them, they are not more required)
- apply the 2 rails MGN12 but do not tighten them
- fix the bed to the guides MGN12H
- slide the bed and tighten gradually: in this way the 2 rails align

In my printer I had to make the rails protrude from the front, because I had designed the holes of the MGN12 guides too far apart. The design I uploaded has been fixed

You need

• 2x 500mm MGN12H rail
  http://s.click.aliexpress.com/e/FRtpNpfK
• 4x MGN12H blocks
  http://s.click.aliexpress.com/e/tPaqOmqk
• 10/12 M3 t-nuts
  https://s.click.aliexpress.com/e/_c3zc7y5Z
• 10/12 M3x8 screws for the tracks and 16 M3x8 for the guides
  https://s.click.aliexpress.com/e/_c3iMqpDH

You will need the new endstop support that you find in the project. For those who, like me, use the sensorless home, print the relative holder.

Here a demo video:
https://youtu.be/hJnAHdRcaTY