An oversize version of the V-slot End Cap that fit 40x40 V-slot profile. Includes an M8 hole in the middle that can be used for an Adjustable Table Foot.
40x40 End Cap
Please feel free to make, hack and use as you please.
Finished products can be found here: https://makersupplies.dk
More info in this video:

40x40 End Cap 2019-08-23
An oversize version of the V-slot End Cap that fit 40x40 V-slot profile.