One of flaws with Ender 3 max is shaking of z axis, and if you want to use spool loaded from the top then it becomes a real pain to watch.
This braces solve the issue.
It is designed to provide
For assembly you need to screw in top and bottom Body elements, then place 10mm threaded rod in groove, cover it with fitting part and tighten the nuts.
You do not need to use any force, just lay down the rods.
When tightening the nuts go with criscross pattern Bottom Left- Top Right on Fitting element, then change corner and tighten the Fitting on diagonal side of the printer. Repeat the steps until all 4 corners of the braceces are tight.
If you want to use the holes on Body Down Right to hold your LCD then just tighten 2 of the screws and later the ones holding the display.
Since threaded rods are not kings of precision, all Grooves on the Body and Fitting parts are designed slightly smaller. To achieve best “sitting” position for them, simply slide grooves of all elements few times along the threads to shave it perfect fit.
Orientation for printing is on one of the images, Top body do require a decent bridging on one section. No supports needed if you have your printer dialed in.
Only advanced work you need to do is making 2 threads on the sides of top profile, there is a hole, but threads need to be made to fit 5mm screw. Or you can use self taping screws.
It holds nice without them but since they are in deisgne why waste a good hold point.
For estetic reasons you can use heatsrink around the rods.
Material
M3 Nut 16 pcs
M3x30mm Screw 16pcs
(optional if you want to attach the LCD then 14 of this and 2 pcs M3x35mm)
M4 t-Nut 6pcs
M4x10mm 6 pcs
M4 Washer 6pcs
M5x8mm 6pcs
Threaded rod 10mm lenght i used 63cm you need 2 pcs of this size
(when you buy the rods roll them on a flat surface to check if they are straight)
Heatshrink tube (optional) 2 pcs of 58cm lenght
Aditional MAX upgrades
The author marked this model as their own original creation.