Ender 3 V2 X And Y Linear Rod/Shaft Upgrade

prusaprinters

Updates.20 November 2023, added a Sprite Extruder Mount. Linear Rod Upgrade. I used CNCKitchen inserts and ProperPrinting's tool change system for this project.Information.I've made a linear shaft upgrade for both the X-axis and Y-axis to eliminate any play in these movements. This improved stability and accuracy result in better prints from my 3D printer. The idea behind this was that linear rails are too expensive for most people. The cost for this upgrade is approximately €40.Printed parts, inserts and screws.X-AxisLeft X Shaft Holder: 2x Short M3 inserts, 2x M3x5 setscrews.Right X Shaft Holder: 2x Short M3 inserts, 2x M3x5 setscrews, 1x M4x10 socketscrews, 1x M4 T-slot nut.Printhead Mount: 12x Short M3 inserts, 8x M3x5 setscrews.Without tool change system.V2 Hot-end Mount: 3x Short M3 inserts, 2x Standard M3 inserts, 4x M3x8 socketscrews.With tool change system.Tool Change Base: 4x M3x8 socketscrews.Tool Change Handle: No hardware needed.V2 Hot-end Tool Change Mount: 3x Short M3 inserts, 2x Standard M3 inserts, 4x M3x8 socketscrews.Y-AxisFront Y Shaft Holder + Belt Tensioner: 4x Short M3 inserts, 4x M3x5 setscrews.Back Y Shaft Holder + Limit Switch Holder: 4x Short M3 inserts, 4x M3x5 setscrews, 2x M4x12 socketscrew, 2x M4 T-slot nuts.Printbed Mount: 8x Short M3 inserts, 8x M3x5 setscrews, 4x Standard M5 inserts, 4x M5x12 socketscrews.Total list of all the hardware (Without the tool mounting stuff).2x 1m linear rods 8mm8x LM8UU Bearings32x Short M3 Inserts4x Standard M5 inserts28x M3x5 setscrews1x M4x10 socketscrew2x M4x12 socketscrews3x M4 T-slot nuts4x M5x20 socketscrewsPrinting instructions.30% infill (cubic is recommended)4 wallsSupports for Printhead Mount, V2 Hot-end Tool Change Mount and Back Y Shaft Holder + Limit Switch HolderOnly use supports in the models that are listed above, you have to take a look at the photo’s where you need to use supports. I used some bridging tricks to minimise supports.