UKC

Just wondering, when using strimmer line as replacement, what's the best way to stop it pulling back through the cam lobes ? Melt into a bobble or a drop of glue ? Thanks.

Melty bobbles for me.

Melty blob, or knot and glue. Either works but glue without a knot won't last.

Too late for your case but for the benefit of the archives my best advice of all is to put a blob of epoxy around where the wire is swaged, where it always breaks, always, on every cam you buy, before you ever use it. Because no manufacturer has bothered to solve this perennial, simple, avoidable and bloody obvious problem. 

Thanks, what I thought too.

That's a great idea ! I might just start working my way through my cams doing just that. 

Very good point.

Also for the archive (and I can't believe folk don't do this), us a harness bag or similar to pack your cams carefully into your bag, rather than just stuffing them in and bending them. I'm convinced most trigger wire wear occurs in the rucksack, rather than on the harness or in placements.

It's the flexing of the wires putting loads of stress on the point where they're crimped/swaged onto the solid bit and causing strands to break one by one. Most of the damage probably does happen when the heads are wobbled as you stuff them in the bag, but it's inevitable however you pack them. 

Some sort of strain relief is all it needs to prevent it entirely. A blob of epoxy serves that purpose but FFS how hard could it be to design that problem away? Adding a bit of heatshrink in the assembly process would fix it for a fraction of a penny per unit, but once together there's no way to get it on there.

Great idea to epoxy at swage points thanks. However, excuse my ignorance but when you say a blob of epoxy...I thought epoxy came in 2 parts that have to be mixed? Am i

I wrong? Is there a version used as a single glue that would work in this context? Any recommendations of what to buy?

Thanks 

I use the 2 part stuff. Just the cheap stuff, nothing special. Poundland will sell you what you need. Comes in 2 tubes and stinks. Pair of nitrile gloves and a well vented space but other than that pretty straightforward. You only need a drop per wire but it makes sense to do all your cams at once, obviously.

Edit: added photo

As far as I'm aware, all epoxy glue is two part, then use a cocktail stick to apply a blob

Slow cure epoxy is probably better, as it can deal with flex a bit better. Araldite standard for example.

The fast cure epoxy tends to be a bit more brittle. 

Perfect thanks for info. 

Thanks for that 

I've repaired trigger wires with strimmer filament (+melty blobs) but never had to re-repair one. Make me wonder why they don't just manufacture them like that...

I've just used a single knot pulled really tight with pliers which sems to work.

I repair cams with s/s wire and new swages. Can do most of the older style cams.

I charge for the repair and have done some for users of this site.

Gt

When I tried the melty blobs, the strimmer wire broke easily, so I went over to knots which worked fine.