Sanding Tool without Screws (just only printed)

Hello, this is my first topic. I searched a lot and found a sanding block which was made out of wood (https://www.youtube.com/watch?v=r9v4tvBQnOo). But i don't want to buy an instruction. So i decided to create a 3D printable Version. You can use solid sandingpaper 75 x 533 mm here: https://www.amazon.de/gp/product/B01N74SP7O?pf_rd_r=3H1P628X7R277Z257W39&pf_rd_p=4ba7735c-ede3-4212-a657-844b25584948&pd_rd_r=9d191dfd-7480-4265-8e1c-89752a5b9acb&pd_rd_w=c6dKZ&pd_rd_wg=8spas&ref_=pd_gw_unk .
The advantage ist, that you can use more solid sandingpaper with a fiber ribbon a the back of the sandingpaper. The result is that the sanding paper will last longer than the normal ones.
I've printed all parts without draft or support with 25 % infill. The Material i used was Prusament PETG. The layer-height is 0,2 mm. Expected the "Bolzen". This part needs a raft and an infill of 100%. In an imgage you can see in wich direction i've printed the parts. You nedd no additional parts likes screws to mount the parts together. A vise would be an advantage, because the "Bolzen" need a little bit of force to press ist in. Pay attention to the chamfer on the parts to press the parts togehter and don't forget to put in the "Hebel" before you press the "Bolzen" into the "Schleifklotz Grundkörper".

Print Settings

Printer brand:

MK3S+

Printer:

Prusa i3

Rafts:

No

Supports:

No

Resolution:

0,2

Infill:

25%

Filament brand:

Prusament

Filament color:

Orange

Filament material:

PETG

Notes:

I've printed all parts without draft or support with 25 % infill. Expected the "Bolzen". This part needs a raft and an infill of 100%. In an imgage you can see in wich direction i've printed the parts.