Scalar XL chassis assembly


List of parts

  • 8 x  square holders (2 big and 6 small)
  • 20 x M6x12mm screws
  • 20 x  M6 T-Nuts
  • 2 x 40cm extrusion profile
  • 2 x 50cm extrusion profile
  • 2 x 60cm extrusion profile
  • 1 x 70cm extrusion profile
  • 6 x side covers
  • [Provided] 1 Allen key

General tips when using 3030 aluminum extrusion

The printer kit chassis is based on Aluminum extrusion of various sizes, of some metallic square holders and a set of screws + T-Nuts.





Each square holder is coming with a set of 2 or 4 M6x12 screws and 2/4 T-Nuts .

Keep the big one for the side mounts.
Use the small ones for the base and top.

Mounting square holders :
Off course you can do it many ways, but we will give you here the easier way we found, that allows you to quickly assemble your kit.





Take 2 M6 screws and place them on 2 side by side slots.
Then prepare the T-Nuts.






Start to screws the T-Nuts slightly .









The best is to place the T-Nuts so that they are parallel to each other.





Then approach then from the extrusion and slide them inside the extrusion slot.




Here is a side view, the nuts must be aligned with the extrusion slot so that they can perfectly fit inside.

Once aligned you should be able to properly fit the nuts inside the slot.




When screwing the M6 screws, the nut must perform a 90° angle turn and place lock the whole system as shown in the picture.

It can happen that 1 nut won’t turn properly because of various reasons. Be careful that it fully turns otherwise the lock performed buy the nut won’t be efficient.

So take a few seconds to make sure that each Nut has properly turned 90° inside the slot . When you unscrews the nut, it should perform another 90° angle counterclockwise and allow the whole system to be unmounted from the extrusion profile.


Base assembly

List of parts :

  • 4 x square holders (small ones)
  • 8 x M6x12mm screws
  • 8 x M6 T-Nuts
  • 2 x 40cm extrusion profile
  • 2 x 60cm extrusion profile
  • [Provided] 1 Allen key


Place all the extrusion as shown on the picture.

Notice the 40cm extrusion are placed on the sides and so that they are inside the chassis. Also the 60cm extrusions will respectively be placed on top and at the bottom of them. Now pre-assembled each of the 4 square holders with their set of screws + T-Nuts.


Here is a zoomed view of each corner of the assembly with pre-mounted square holders.

Screw each square holder on each corners

Here is the chassis base once every square holders are in place. (You should have 4 small square holders)






Side mounts assembly (video)

List of parts :

  • 2 square holders (big ones)
  • 8 x M6x12mm screws
  • 8 x T-Nuts
  • 2 50cm extrusion profiles
  • [Provided] 1  Allen key



Take as reference the bottom side of a 60cm extrusion profile, and measure 16cm from it going on the 40cm extrusion.

16cm will give you the proper place where to position the side mounts.






Once in place screw them using a square holder.





Here are the side mounts once assembled.






Assembly of the top mount  (video)

List of parts

  • 2 x square holders (small ones)
  • 4 x M6x12mm screws
  • 4 x T-Nuts
  • 1 x 70cm extrusion profile
  • [Provided] 1 Allen key

For this step, take the longer extrusion profile (70cm) that should be remaining and place it on top of the side mounts.Use a pair of square holders to fix it.
This should look like on the picture. Notice however that the top mount we present you are 2 x 50cm extrusion profiles attached by a center plastic mount. On your side you should have only 1x70cm aluminum extrusion


List of parts

  •  6 side covers

Take the 6 side covers that look like on the picture.





Place them in front of the far sides of the extrusion profiles. You might need to push a little bit in order to properly position them.





Push them entirely with some force. If you struggle too much use a hammer and slightly hit the flat side of the side covers, then they should get inside easily.






Final result