NEW Sanding Block With Tensioner, HRCv3 available!

Thank you all for your support and comments, that's why HRC v3 could be created, which has minor improvements. I hope you will be even more satisfied with HRC v3! Thank you all very much for your support!

No supports, no gluing, AMS and NO-AMS versions.

Sandpaper format: 280x45mm
The size of the model can be changed according to your needs, but the sandpaper format will then be different.

Changes:

Better optimization of the model for printing

More ergonomic 

Longer and wider grinding surface

Adjusted thread clearance
Adjusted body design
Reinforced lower part
Extended clamping element with guide
Just more HRC :)

https://makerworld.com/en/models/2366105-new-vacuum-sanding-bblock#profileId-2589296

https://makerworld.com/en/models/2334840-new-vernier-caliper-ruler#profileId-2551674