Stymied on making linear extrusion for the V-slot in an Ender's 4040

4040 Aluminium V-Slot Profile 4040 v slot Hi i want to make my own 3d printer out of v slot and i can't find any plates that is made to fit 4040 v-slot without being too large 4040 t slot aluminium extrusion SHOP NOW - V-Slot Linear Rail 20x40 - C-Beam Linear Rail - Modular System! Fast Shipping from - Genuine OpenBuilds Parts

4040 v slot This Alux aluminium slot profile 40x40 is 40 mm wide and 40 mm high The aluminium profile has 4 slots, 8 mm wide The depth of the T slot is 12 mm