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SFU 1204 ball screws upgrade for HCE beltless

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Creation quality: 5.0/5 (1 vote)
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  • 52 downloads
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3D design format
STL and ZIP Folder details Close
  • NEMA23_Y_carriage_left.stl
  • NEMA23_Y_carriage_right.stl
  • NEMA23_Y_motor_support_2x.stl
  • SFU_X_carriage.stl
  • SFU_X_carriage_endstop_support.stl
  • SFU_X_carriage_sponge_cover.stl
  • SFU_X_carriage_top.stl
  • SFU_X_leadscrew_bearing_support.stl
  • SFU_X_leadscrew_bearing_support_motor_side.stl
  • SFU_Y_bearing_back_2x.stl
  • SFU_Y_bearing_front_2x.stl
  • SFU_Y_carriage_left.stl
  • SFU_Y_carriage_right.stl
  • SFU_Y_carriage_sponge_cover_2x.stl
  • SFU_Y_drag_chain.stl
  • SFU_Y_endstop_flag.stl
  • SFU_Z_endstop_support.stl
  • SFU_blower.stl
  • SFU_extruder_base.stl
  • SFU_extruder_lock.stl
  • STEP_17.zip
    • blower.step
    • extruder_base.step
    • extruder_lock.step
    • X_carriage.step
    • X_carriage_endstop_support.step
    • X_carriage_sponge_cover.step
    • X_carriage_top.step
    • X_leadscrew_bearing_support.step
    • X_leadscrew_bearing_support_motor_side.step
    • Y_bearing_back_2x.step
    • Y_bearing_front_2x.step
    • Y_carriage_left.step
    • Y_carriage_right.step
    • Y_carriage_sponge_cover_2x.step
    • Y_drag_chain.step
    • Y_endstop_flag.step
    • Y_Nema17_support_2x.step
  • STEP_23.zip

Learn more about the formats
Last update 2021-06-06 at 18:17
Publication date 2021-04-28 at 08:30
Design number 413717
francescangelif

francescangelif

3D printer file info

3D model description

Functional test video is here

Updates
- uploaded remixed NEMA23_Y_carriage_right with adjustable position toward the rail cursor
- uploaded remixed NEMA23_Y_carriage_right with adjustable motor position
- uploaded remixed NEMA23_Y_motor_support_2x, now stronger
- Nema23 capability added, files NEMA23_Y_carriage_left, NEMA23_Y_carriage_right and NEMA23_Y_Nema23_support_2x
- Uploaded brand new SFU_X_leadscrew_bearing_support_motor_side due to a slight ripple present on X printing side
- reversed 180Β° X ball screw to accomodate the item above descripted

In order to make my HCE beltless less noisy and more accurate when printing I've designed this little improvement.
At today finally we can buy almost cheap ball screws from China (of course...), so why not upgrade my printer?
Very little or no changes are necessary, just an accurate positioning of items and endstops recalibrating.

STEP_17 and STEP_23 files also provided.

Important note for Nema17
- remeber to double your X and Y axes steps/mm, the new pitch is 4mm
- with Nema17 relative low power you must decrease printing and movements speed to 1300/1500mm/min (22/25 mm/sec)
- slow down a bit the acceleration value.

I'm seriously considering to buy three Nema23, so I uploaded brand new items required for that motor.
Important note for Nema23
- not yet checked, but I don't think you've to modify your current speed and acceleration parameters
- you must lower down the working plane by 7mm, due to bigger motor

BOM
- n. 2 SFU 1204 ball screw 400mm
- n. 1 SFU 1204 ball screw 450mm
- n. 4 F6000Z ball bearings
- n. 2 608ZZ ball bearings
- n. 3 M10x1mm nylocs
- n. 1 2020 V-slot profile 475mm
- soft sponge to oil and keep clean the screws
- Mobil Vactra no.2 oil

3D printing settings

PETG, PLA, ABS
Layers 0.30mm
Infill 50%

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