Quote from: foamybuilder on July 18, 2011, 04:07:00 PM
The zip ties are good. I have been using that in all my planes since two years, probably not on highrpm motors though.

For metal to metal fastening instead of nut-bolt with lock-tite ? I do use them if one of the material is soft like Foam, Depron etc. Not on hard-hard surface as the only means to hang. May be as extra support/safety, but not in place of nut-bolt.

It can be used with between motor mount and plywood mount to replace nutbolt, again there is drawback as said earlier.

QuoteThese are plastic and not Kevlar.

Sir im sure our a/c will not be facing bullets anytime soon.

the stick mount looks alright, i still would go for X-Motor mount. Also its made of plastic not kevlar

These will be fastened by nuts and bolts which can easily come off under vibrations but a ziptie wont. This happened today only. And most of the metals used in RC are duralumin which deform when load is applied so we cant fasten very hard.

Intrigued by the Nylon-66 and Kevlar remark i decided to do some research.
[quote http://www.chemguide.co.uk/organicprops/amides/polyamides.html]
Kevlar is similar in structure to nylon-6,6 except that instead of the amide links joining chains of carbon atoms together, they join benzene rings.
[/quote]
and a little test of my own.
I made rings of '3.6x200' size zip ties and subjected them to 3 loads
10kg - Hung easily, did not break when shaken. Unnoticeable elongation
12.5kg - Hung easily, did break when shaken. Unnoticeable elongation
22.5kg - broke from the stopper. Noticeable elongation.

I would love to do a UTM test on it in college, let see if i could get the permission when college reopens.

@ujjwaana: Sir, no paronomasia intended.