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Ender 3 Pro and V2 to Switchwire Mod This is a conversion of the Ender 3 Pro and V2 to a Switchwire type coreXZ printer. My goal was to use most of the Ender 3 components while maintaining the core Voron design look and feel. Overview This mod uses most of the key components from the Ender 3 Pro (E3P) while providing a coreXZ capability. The highlights of this include: The frame is all E3P. The electronics are the stock Switchwire ones, but the E3P 24V power supply is used. I wanted to get all the electronics under the deck as this follows the Switchwire design. I had to get a little creative with the mounts to make this work. I did not include the LCD display. Mainsail (MainsailOS) is so amazing, I never use the LCD on the Voron 2.4 so I left it out. It can easily be added. The deck is easily printed in 4 sections. The XZ and gantry are slightly modified from the Switchwire baseline. The X axis rail is 300mm and is a tight squeeze on the shortened 2020 extrusion. I wanted to keep the standard rail length in case I wanted to build a stock Switchwire. The Y axis uses 2 rails. I liked the look of it and it seemed more stable that way. It also simplified the Y belt routing through the extrusion. I also removed the springs on the bed corners and replaced them with spacers. The spacers come off the E3P V-wheels. With the bed mesh probing, this seemed like a better approach than worrying about the bed changing positions if the knobs rotated/loosened. This configuration also worked without too much modification to the stock E3P wire lengths. The E3P motors can be reused if you can pull off the gears. Thingiverse has a printable gear puller (I haven't tried it). Images / CAD I have included several images and the Fusion 360 CAD model. CAD files and images are included in the repository BOM A BOM has been added that is based on the baseline Switchwire. This will not be perfect as the Ender 3's get a lot of mods by their owners. It should help with most of the key items to make the MOD. Firmware: Use the baseline Switchwire configuration available in the Voron-Switchire repository. The Voron-documentation has excellent instructions for making the adjustments. STL Files This mod uses a combination of original Switchwire and modified parts. Most of the parts are modified/new as the Switchwire and Ender 3 frames are much different. I kept all the Voron naming conventions to provide consistency. The following is a listing of the STL files, organized by location: Deck: [a]_deck_y_chain_anchor deck_front_right deck_front_left deck_rear_right deck_rear_left Electronics: [a]_ps_clamp [a]_ps_hanger [a]_rpi3_mount [a]_rpi3_shelf [a]_rs_25_hanger [a]_skr_mini_e3_mount 2020_ziptie_clip (quantity as required to suit your wiring organization) Grill: [a]_grill_endcap_x4 grill_front_left grill_front_right grill_rear_left grill_rear_right XZ-Axis: [a]_xz_cable_cover keybak_mount_plate_a keybak_mount_plate_b x_motor_mount_a x_motor_mount_b xz_block_left_a xz_block_left_b xz_block_right_a xz_block_right_b z_bearing_block_left z_bearing_block_right_generic z_carriage_stop_x2 z_motor_mount_a z_motor_mount_b [a]_xz_tensioner_x2 ** [a]_upper_idler_support_b_right ** [a]_upper_idler_support_b_left ** upper_idler_support_a_right ** upper_idler_support_a_left ** keybak_gantry_anchor ** keybak_idler_bracket ** Y-Axis: [a]_y_axis_anchor_x2 [a]_y_axis_frame_chain_anchor [a]_y_axis_ls_mount [a]_y_front_belt_mount [a]_y_front_belt_slider [a]_y_motor_mount_a [a]_y_motor_mount_b y_axis_bed_carriage Misc: 2020_MGN12_guide_x2.stl ** 4040_rail_tool ** Denotes STL files that have not been modified from the baseline Switchwire design and are located in the Switchwire repository

I loved the Ender 3 to Switchwire conversions that Gizzle and Triano did, but I didn't like the idea of losing z-height, so I created this mod. These parts are to extend the usable z-height of the printer back up around 250mm (I get 247mm with it on my own printer). I re-used the upper Z parts Gizzle designed, and am including those here as well so you have everything you need in this repository. I also designed a bowden guide that will let you route your bowden tube between the belts and the upper cross member of the printer as seen in the picture below. This works really well with a bowden setup, like the dual M4 extruders I use. You will need a base conversion for your Ender 3 in addition to these files. You can find Gizzle's Ender 3 conversion in the VoronUsers github page.