Wish me luck, I am making my first attempt at making the movable parts

Wish me luck, I am making my first attempt at making the movable parts withstand 900psi

Please explain why for an RC project.

Seems like a large number of parts break fairly easily or even melt under certain situations.

Its not always strength as in load you need some times gentle shock loads cause the problems over time. Composite layers in different direction may help. Buy if a part breaks you need to work out if is the way the part is made or material used before just aiming for a large psi figure as that doesn’t mean is strong in all directions.

Please don’t think I’m redesigning the parts to be 5" thick so as to make them stronger. The pieces will be the same size as before, so that as a piece breaks the replacement would fit just the same.

That’s not what I’ve said. You need to work out why it failed not just decide to strengthen it. And is 900 psi achievable in small scale without going carbon/ kevlar and the cost involved in curing it.

Maybe I should clarify what I’m trying to accomplish. I am doing some testing on different materials in molds. the first thing I’m attempting to use is JB Weld Steel putty in a mold I’ve printed. After it cures, I will heat it up to 275 degrees F for about an hour. From what I understand about this process, it cures the putty to make it even stronger than if you just let it cure normally. Again, this is all for testing purposes. Not really trying to argue the value of it until I’m done.

Surely there research and data on the tensile strength of that material available without doing that. Saves wasting time and money. After all if you do want to do parts that are tougher you can home cast aluminium fairly easily.