Printable M3 T-Nut for 3030 Extrusion (Prusa XL)

Here are 3 Versions of T-Nut:

"M3_heat-set_insert_T-Nut_3030_(4mm_hole)" is for M3 Brass Heatset Inserts - Short (ruthex or cnckitchen) 

“M3_heat-set_insert_T-Nut_3030_(4.6mm_hole)” is for M3 Brass Heatset Inserts - Short M3x5x4 (Voron standard)

“M3_hex_nut_T-Nut_3030” is for standart M3 hex nuts with 5.5mm key-width

The thing which hold the nut in place has to be prebend (see video below). That leads to some stressmarks. This stressmarks are not critical.

How to insert the printed version in the slot of the extrusions:

Print recommendations:

Material: ABS (other might work just what i tested)
Perimeters: ~1.6mm (4 @ .4 Nozzle; 3 @ .6 Nozzle)
Top/Bottom: ~1mm
Infill: 30-40%
Extrusion width: External perimeters: .5mm

There where complanes about loose fit with PETG. Scale them down in Z to 97% to get a tight fit or add a bit of glue. ;)

Feel free to Modify it yourself. CAD-models are attached.