How to make Gymnastics/Fitness Rings from PVC Conduit

Step 4 Heat pipe in oven

My oven wasn't large enough to fit the pipe so I did performed the following steps for each pipe:

1) heat for 5 minutes (other end was sticking out)
2) rotate pipe so other end is sticking out
3) heat for 5 minutes
4) bend pipe into horseshoe shape and keep the shape by using wire (I bent an old coat hanger). I could now close the oven door!
5) close oven door and heat for 5 minutes

Make sure you watch the pipe to make sure it doesn't turn brown! We want our cakes and breads to turn brown -- not our pipes. You may need to vary the temperature and keep an eye on it.

Comments

[teeroy65]

What temperature range did you use?

[Mr.F]

350-degrees

[godspiral]

any burning smell at that temperature ?

It starts to soften at about 170F.  I'd use 300F, but if it didn'tsmell up, then ur prob fine.

[aaronnielsen]

It is easier to heat the sand up and then put hot sand into the pipe. This can be done by putting a few quarts of sand into a pan and heating to about 350 degrees on a camp stove or on your gas range. Tape one end of the pipe as described and pour sand into the pipe. Empty the sand after about a minute. This will have preheated the pipe. Then pour sand in again, and tape the other end. In about a minute your pipe will be very rubbery. now you can bend your pipe at will. The pipe will cool quicker if you can get the sand out.

[Mr.F]

You don't need to heat the sand first because of the fact that conduit is designed to be heated and bent -- not like PVC pipe.