Boom slipping !?

[Sieze2]

My carbon boom keeps slipping in the 500 and loosening the belt. Its so bad that recently I can't take off ! I have tried cleaning and sanding the boom/boom block, as well as using clingfilm on the boom. Neither have helped. The problems only started 30 or 40 flights after getting a carbon boom. I thought clingfilm would work, as I did it as thick as I could, with it still sliding inside the boom block.

Any help would be appreciated. I am thinking of removing the carbon boom and putting the old alu boom back in. Seems a shame though if there is an easy fix.

[mark Taylor]

try sellotape or insulation tape
about half a dozens turns
cheers

mark

[Sieze2]

Two turns of clingfilm made it hard to insert the boom in the block. I could try x6 of insulation tape and use a screwdriver to open up the block while I push the boom in? I want to fly today, so might try a self tapper in the boom to stop it sliding tighter.

[Made2Fade]

sellotape/insulation tape/masking tape. Or try some hot glue ive heard that works quite well. It wont make the boom non removable too as its quite easy to peel off.
Cheers
Lee

[shaun.e]

I had a similar problem on the 450. After advice from this site I purchased another tail servo clamp and placed that against the boom clamp. When tightening the belt I tighten the clamp first then the boom clamp - its easy and works very well.

[heliward0]

I had a similar problem on the 450. After advice from this site I purchased another tail servo clamp and placed that against the boom clamp. When tightening the belt I tighten the clamp first then the boom clamp - its easy and works very well.

we forgot about that one didnt we,,

[pchristy]

It used to be a common problem with larger machines a few years back.

The standard mod was to put a small PK (self tapper) screw through the boom holders, so that it just penetrated the boom. (Not too far, or it will damage the belt!)

--
Pete

[Oli]

Also just to add, if you are going to self tap screw the boom, make sure you drill a clearance hole in the carbon boom, the carbon wont strech like ali, its too brittle and will crack.

Oli