UK-Cherub Forum

Cherub Chat => Tech Chat => Topic started by: Torchy on September 14, 2013, 04:10:39 PM

Title: Plastic sleeve
Post by: Torchy on September 14, 2013, 04:10:39 PM

Last year there was a thread about plastic sleeving to help lubricate the kite pole moving in and out. I can't find it.

What sort of plastic tube do people use? It needs to wear slowly and allow carbon to move past it, sometimes under some pressure

Title: Re: Plastic sleeve
Post by: Andrew Whapshott on September 14, 2013, 11:43:38 PM

Delrin or Nylon I think, I made some great Delrin sheaves once

Title: Re: Plastic sleeve
Post by: paul_croote on September 14, 2013, 11:54:10 PM

When I built Marmite I could not find a tube the right size either so cut a strip 20 mm x 6mm  soft flexible plastic i had (similar in nylon). I bent it into a circle and kept trimming were the ends met until it would just start to fit in the tube. I then wiped some epoxy around the outside and hammered it in using a flat block of wood and a hammer until it was flush with face of the tube. Not being a tube and nylon not being very easy to bond I was not sure it would last but it seems find and marmite is 1 and 1/2 now.

Title: Re: Plastic sleeve
Post by: Torchy on September 15, 2013, 10:57:17 AM

Thanks guys

Title: Re: Plastic sleeve
Post by: Phil Alderson on September 15, 2013, 11:58:39 AM

Most kitchen chopping boards are a low cost source of Nylon in sheet form