1. Got a question or need help troubleshooting? Post to the troubleshooting forum or Search the forums!

The Filament Reel Support Mod For C2 and R2 printers

Discussion in 'Mods and Upgrades' started by tkoco, Aug 16, 2019.

  1. tkoco

    tkoco Administrator
    Staff Member

    Joined:
    May 7, 2018
    Messages:
    216
    Likes Received:
    110
    While working with the TPU filament (Article found in the R2 Projects area), I noticed the difficulty with the Extruder pulling TPU filament into the Extruder assembly. I came up with this mod to reduce the friction between the filament spool and the printer's filament support.

    Parts:

    Slick Strips tape: https://www.amazon.com/gp/product/B0035Y46GM

    Tools:

    Scissors

    ------------------------------------------------------------------
    Cut a strip to the length of the spool support surface. Clean the surface with 91% isopropyl alcohol before applying the strip. Press on the tape and get all of the tape to adhere to the surface. Might take several passes of pressing.


    For the C2 printer:

    C2 support with tape. Tape is shown with paper backing.

    C2_Support_with_strip.jpg

    C2 support with tape. Tape has backing removed.

    C2_Support_with_bare_strip.jpg

    C2 support with tape applied. Note that a second strip (trimmed with the scissors) was needed to cover the entire surface.

    C2_filament_support_with_mod.jpg

    For the R2 Printer:

    The R2 spool support. Notice the wear on the surface.

    R2_filament_support.jpg

    The R2 support with the tape applied. Again, a second strip is needed. Trim it with scissors.

    R2_filament_support_with_mod.jpg

    Once you have done this mod, mount a spool of filament. You will notice an immediate difference in the force needed to pull the filament from the spool.
     
    albert3d likes this.
  2. albert3d

    albert3d Member

    Joined:
    Feb 3, 2018
    Messages:
    56
    Likes Received:
    21
    Ran across this image awhile back that shows the R2 filament holder with bearings embedded in the spool holder. I was surprised when I got mine it didn't have them. Not sure if early version did or if this was just a concept that never made it to production. The white filament sensor block also makes me think it is an early render since I also haven't seen an R2 with that in the wild. It is still part of the product page on Robo's site. The ease the spool can rotate without resistance is often an overlooked issue. Your solution looks like a nice and easy solution.


    [​IMG]
     
  3. tkoco

    tkoco Administrator
    Staff Member

    Joined:
    May 7, 2018
    Messages:
    216
    Likes Received:
    110
    You are looking at the screw heads in the support. Not ball bearings.
     
  4. albert3d

    albert3d Member

    Joined:
    Feb 3, 2018
    Messages:
    56
    Likes Received:
    21
    You sure? They look like balls. Hard to tell when you zoom in.
     
  5. tkoco

    tkoco Administrator
    Staff Member

    Joined:
    May 7, 2018
    Messages:
    216
    Likes Received:
    110
    Trust me, it is not ball bearings. Please review the R2 images above. You will see what I am referring to.
     

Share This Page