Categories Announcment File Drops Printable Frames File Drop: 80% Reciever Milling Jig ctrlpew 2020-04-04 2 The Gatalog Presents: 80% Milling Jigs A design by CTRLPew Join the community at thegatalog.com Download Here
ctrlpew 
Could you theoretically use this to make a high shelf lower a low shelf?
No idea. Test it let me know.