You can use the tool on bags that have strap loop in inner size of 38,5mm/16mm and no larger diameter of rods then 3,5mm.
To assembled you need 1 M3 4mm screw and 1 m3 nut.
No support needed.
Take part with hexagonal hole and put nut in hole. Put thys part on bag size of strap loop. On front put ather part and screw them together.
Print time:
On Prusa Mini with 0.4mm nosle
0,15mm QUALITY 34m
0,2mm QUALITY 28m
On Prusa i3 mk3s with 0.4mm nosle
0,15mm QUALITY 36m
0,2mm QUALITY 30m
The author hasn't provided the model origin yet.