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General control line discussion => Open Forum => Topic started by: Tim Wescott on September 16, 2010, 10:27:31 AM

Title: grommets...
Post by: Tim Wescott on September 16, 2010, 10:27:31 AM
Do folks normally do anything special with their leadouts?  It seems that it's standard to terminate ones line with grommets (to keep them from wearing out, I assume).  But my leadout kits never come with grommets, leading me to believe that the 'standard' is to just make a loop of wire..

Is this an "oh, you never need that" item, a "you'll crash before you ever wear out the leadouts" item, or "it's really a good idea to put them in even if it wasn't done in the 60's" sort of thing?

And if I do want to grommet my leadouts, is there someplace that I can get grommets and cable in bulk?  I could machine my own grommets from round stock, and win most "my plane has more custom machined parts than yours does" contests, but it'd sure take time...
Title: Re: grommets...
Post by: John Craig on September 16, 2010, 10:31:37 AM
http://www.mbsmodelsupply.com/

They have all you need to make lines.  Grommets 20/pkt @ $2.00.
Title: Re: grommets...
Post by: Scott Jenkins on September 16, 2010, 10:49:56 AM
Tim,

""my plane has more custom machined parts than yours does" contests,"

Dang, that almost sounds like a challenge or a contest  S?P

Scott
Title: Re: grommets...
Post by: Tim Wescott on September 16, 2010, 10:57:25 AM
http://www.mbsmodelsupply.com/

They have all you need to make lines.  Grommets 20/pkt @ $2.00.
Ooh cool.  Next month when I get my modeling allowance I'm gonna blow it on them...

But do I need to grommet my leadouts?
Title: Re: grommets...
Post by: John Stiles on September 16, 2010, 01:09:39 PM
is there someplace that I can get grommets and cable in bulk? Do you care what color they are? LL~
Title: Re: grommets...
Post by: Tim Wescott on September 16, 2010, 01:45:02 PM
Pink would be nice, although I suppose I could settle for purple.

Actually a nice buttercup yellow would match the current plane I'm working on.
Title: Re: grommets...
Post by: John Stiles on September 17, 2010, 03:44:53 AM
Pink would be nice, although I suppose I could settle for purple.

Actually a nice buttercup yellow would match the current plane I'm working on.
I bought a whole mess of them but they were every different color in the sewing section at walmart. That was some time ago, but I still have quite a few left. I think I paid less than $5.
Title: Re: grommets...
Post by: Allan Perret on September 17, 2010, 05:27:12 AM
RSM also has grommets.
Title: Re: grommets...
Post by: George on September 17, 2010, 08:31:39 AM
Since most of us older modelers are also scroungers for anything that can be used on models...someone once suggested using the eyelets from parts packs. These usually work but often one flange side is higher than the other. Although I have used them, I prefer the purchased ones because the flange is usually the same height on both sides and are made for our purpose.

Although both grommets and eyelets are designed to be final shaped with a tool, I have never done this. I just use them as they come...wrap them around the end of the lines or leadouts twice and use the AMA line wrap. I usually pull on the line and eyelet to make it nice and snug between the first and second wrap on the lines.

There are probably as many different ways as there are eyelets.  ;D

And, as someone mentioned...whether you need them or not probably depends on how many flights you expect to make with that model.
 
Actually, I don't usually use them on leadouts because I prefer solid leadouts.

George

Title: Re: grommets...
Post by: FLOYD CARTER on September 17, 2010, 10:27:11 AM
There was a time when brass grommets were scarce.  A good termination can be made using a short piece of aluminum tubing, heated to anneal, then bent into a small "U" shape to fit over the leadout cable.  Then wrap with copper wire in the usual way.

Floyd
Title: Re: grommets...
Post by: Tim Wescott on September 17, 2010, 10:39:58 AM
There was a time when brass grommets were scarce.  A good termination can be made using a short piece of aluminum tubing, heated to anneal, then bent into a small "U" shape to fit over the leadout cable.  Then wrap with copper wire in the usual way.
Well that's obvious -- in hindsight.  D'oh, and thanks for pointing out what I should have been able to figger out for myself!
Title: Re: grommets...
Post by: Bob Reeves on September 17, 2010, 01:41:17 PM
Tim,

""my plane has more custom machined parts than yours does" contests,"

Dang, that almost sounds like a challenge or a contest  S?P

Scott

Sounds like a fun contest, this would be my entry, everything metal was made in my shop except of course the clevises, bellcrank and wheels.

Title: Re: grommets...
Post by: Tim Wescott on September 17, 2010, 03:41:56 PM
Sounds like a fun contest, this would be my entry, everything metal was made in my shop except of course the clevises, bellcrank and wheels.
So, does that mean you made the engine?
Title: Re: grommets...
Post by: Bob Reeves on September 17, 2010, 04:00:32 PM
After I wrote it I knew this would come up.. Should have said hardware instead of metal.. No I didn't build the engine  ;D
Title: Re: grommets...
Post by: Bill Little on September 17, 2010, 08:43:11 PM
As Floyd said, tubing can be annealed and bent for the lead outs.  1/16th" brass tubing is what I use.  I mainly use the brass tubing on *big* planes, .60 size/piped, etc..

Oh, yeah, I put the lead out wire in the tubing after I heat it and before I bend it.  Windy used to use the eyelets on solids, too (may still do it??).

Mongo