Cannon construction

2007-01-28T03:15:51Z

PVCMAN:

It is important to construct your launchers with care. This includes:

* Using pressure rated (NSF-PW or NSF-61) fittings and pipe, especialy in a [[pneumatic cannon]].
* [[Solvent welding]] [http://www.burntlatke.com/weld.html correctly]
* Using pipe of the proper pressure rating, eg. sch 80 in a [[Hybrid Cannon]].
* Only [[tapping|tap]] through a double layer of pipe where the pipe and a fitting is joined(for bolts, pressure gauges) .

[[Cell-core]]or unsleeved thinwall [[PVC]] pipe should not be used in the making of cannons. Cellular-core pvc can be used in low-power, aerosol combustions, but remember, cellular-core pvc is nothing more than laminated foam.

You may also want to make a design of your cannon first. Sketches and dimensional drawings are both very helpful. You may find out ahead of time that your design will not work, saving precious money. [[3d models]] are some of the most effective visual representations. A limited library of parts (~115) for potato gun construction is currently completed and will be available soon.

See also: [[:Category:Construction materials]], [[:Category:Construction methods]]

Cell-core

2007-01-25T02:33:30Z

PVCMAN:

Cellular core pipe is basicaly hard foam with a veneer of plastic on the outside and inside. It is commonly used for DWV (drain, waste, vent), and is not rated for pressure. Do '''not''' use it for pneumatic cannons.
It can usually withstand the limited pressures created by a combustion cannon, but it is not recomened due to the fact that it is non-pressure rated pipe. It will have "cellular core - not for pressure" written on it, and probably DWV.
[[Category:Construction materials]]

SpudFiles Wiki - User contributions [en]

Cannon construction

Cell-core