Note: this is an accessory for the Dummy 13 figure created by soozafone, which you can get here: https://www.printables.com/model/981111-dummy-13-version-10
I designed an Olympic barbell for Dummy 13 figures, complete with functioning compliant mechanism barbell collars, shaped bar compatible with the figure's hands and “45lb” plates. You can use this to demo various barbell exercises or just play around. I scaled it based off of a regulation Olympic barbell size assuming the Dummy is 5'9", but there is some slight wiggle in the numbers to make things appear proportional.
To put the barbell in the figure's hands, you just push in the shaft part of the bar and pressure fit the sleeves.
To put on the collars, squeeze them like a standard barbell collar to widen the internal diameter.
Should print pretty easily. I recommend PETG!
The author marked this model as their own original creation.