Extrusion

thingiverse

If you're designing parts that require rail mounting, getting precise measurements from plans or using your trusty vernier calipers can be a hassle. To simplify this process, I've created a technical drawing of the rail insert that I printed on my Creality Ender3.\r\n\r\nThe part fits snugly into the extrusion with no play. This design is based on the full 4040 rail, featuring double extrusions on each face of the aluminum extrusion. To create a 2020 or 4020 rail with a single slot, simply cut the plan in half at the 20mm mark, as it is symmetrical.\r\n\r\nMost Creality Ender3 printers have similar tolerances if properly maintained. After creating this design (I used Fusion 360 to create it), I recommend printing a small test section before integrating it into part designs. I usually print around 4mm high samples to check fit.\r\n\r\nThis should help you upgrade your printer with ease. For more electronics tips, visit my YouTube channel DonLabs at https://www.youtube.com/watch?v=pS7E-TpymMc&t=1s.