Rod in Bag.jpg
FA info icon.svgAngle down icon.svgProject data
Authors Reis G.M. Jones
Completed 2018
Made Yes
Replicated No
Cost USD 3.9
Instance of Carriage-Connecting Rod Sound Dampener.
OKH Manifest Download

This page lays out the steps required to convert your current Delta Athena II printer to reduce the rattling of the connecting rods during printing.

Design[edit | edit source]

This is a relatively simple design, meant to cover the plastic bags which are actually doing the sound dampening. The plastic parts cover the plastic bag so it doesn't interfere with other components of the printer and the rubber band holds the covers stable.

Printing[edit | edit source]

These can typically print with no problem, with printing at 20% infill at a speed of 140 mm/s and layer size of.15, this design costs about 20 grams per cover and about 120 g overall. To avoid too tight of a gap on the printed parts, print at about a scale of 110% if you're having problems with getting the parts to slide over the plastic bags after wrapping the connecting rods. Supports should be used to cover the rubber band slot area. 3D Printing Files

Sound Dampener attachment
Sound Dampener attachment

Installation[edit | edit source]

Installation[edit | edit source]

Below are the bill of materials indicating what parts you'll need to upgrade your printer and assembly instructions on how to attach these upgrades.

Description Link Price Count
Connecting Rod Cover 3D Print from here: $3.20 6
Rubber Bands From Walmart or Amazon: $0.10 12
Plastic Sandwich Bags From Walmart or Amazon: $0.60 6


  1. After taking the connecting rod off of the printer, place a single rod in a sandwich bag with the ball bearing in the corner of the bag.
    Rod in Bag.jpg
  2. Wrap the plastic bag around the connecting rod tight to the cylinder.
    Wrapped Plastic Bag.jpg
  3. Push the cover over the plastic bag and rod about midway down the shaft. Be careful not to push so hard you bend the connecting rods.
    Cover On Rod.jpg
  4. Place rubber bands around the cover in the indented slots. You may have to double wrap in order to have a tight fit.
    Rubber Bands On Cover.jpg
  5. Reattach the connecting rod onto the printer after lubricating the outside of the plastic on the ball bearing end.
    Attached To Printer.jpg

Sound Dampener[edit | edit source]

This video shows a Yooper Keychain from Thingiverse printing orange Hatchbox PLA at 160mm/s being printed at the same time points by the Athena II without the connecting rod sound dampeners and with the connecting rod sound dampeners for a demonstration of functionality.

Sound Dampener vs. Normal

Common Problems[edit | edit source]

Be careful to not push to hard on the bars to get the plastic bag within the cover, this can cause the bars to bend. If you're having issue with getting the cover to slide over the bar, try printing at a slightly larger scale.

FA info icon.svgAngle down icon.svgPage data
Keywords 3d printer modification, 3d printing, osat, sound dampener, plastic
SDG SDG09 Industry innovation and infrastructure
Authors Reis G.M. Jones
License CC-BY-SA-3.0
Organizations Michigan_Tech's_Open_Sustainability_Technology_Lab, MY4777, MTU
Language English (en)
Related 0 subpages, 4 pages link here
Impact 380 page views
Created December 13, 2018 by Reis G.M. Jones
Modified January 29, 2024 by Felipe Schenone
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