CreteLabs - Jet Hubba

This is a 2 piece mold design to pour concrete into to make the Jet Hubba. I recommend printing this out of PLA due to its highspeed printing capabilities. You need to use some sort of concrete release as well, petroleum jelly works well just don't be afraid to lather it on. For your concrete mix I also recommend using something closer to mortar (just sand and cement), just allows for better resolution of your obstacle. If you do use something like quikcrete, sift out any large rocks or aggregate. Once you pour your mix allow AT LEAST 24 hours to set before taking it out of the mold, concrete can take many days to fully cure.