I wondered how much I could strengthen a printed I-beam by installing steel rebar during print pauses. It turns out it worked without a hitch and increased the beam break force by around 50%. I think the strength would go up a LOT more if I were to optimize the beam geometry to take more advantage of the steel reinforcement members.
I’m not sure if the pics will upload correctly but here’s a link to the test results which has all the info, including pictures. Its also attached, if that works…
https://www.dropbox.com/s/x4mie6ip5b831ev/TEST%20SETUP%2C%20RESULTS%2C%20CONCLUSIONS%20-%20REINFORCE
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