Gridfinity universal 1/2" ratchet extension

Started recently creating a bunch of gridfinity items. Really did not enjoy how much filament was being used for some of the models, even small ones. So i started creating a good chunk of filament saving designs. Here is a quick ¼" ratchet extension that can take pretty much any assortment of sizes. I left the ends open as well incase you have some REALLY long ones.Incase your extensions go past a few empty squares, i've added a few blank/block offs as well.