ewokshoter
Member
What is the purpose of a linkage stopper. does it funtion like a clevis? what the installation process and most importantly are they adjustable?
Linkage stoppers.. what why and how?
- Thread starter ewokshoter
- Start date
Ray K
Ray K
I'm with jtrops. The linkage stoppers can cause problems if you fail to tighten the holding screws correctly, but personally I've never had the problem. For me, they're much better than z-bends on both ends. Just take a look every once in a while to make sure they're still tight. Making the mechanical adjustments to control surfaces is much easier than trying to put additional bends in the pushrods, at least for me.
UncleRojelio
Member
I assume we are talking about using linkage stoppers in conjunction with the tiny gauge wire that comes with the Flite Test kits. I would strongly encourage anyone to upgrade to proper 2-56 control rods to decrease (or eliminate ) the rod flex and use threaded Kwik links to enable more precise control surface adjustments. It's a fairly inexpensive upgrade that significantly decreases some headaches.
ewokshoter
Member
Yes. In typical google fashion anything with"linkage stopper" just came up with places to buy the things.
Ray K
Ray K
Hands down, IMO, the best solution yet. I have these on some of my planes and they're great.
ewokshoter
Member
will this work with mighty mini size planes?
jtrops
Member
It would work, but it would be heavy. You could do the same thing using a butted bike spoke instead. Put a z-bend at the servo end, and the adjustable clevis at the control surface. A Sapim Laser spoke is 2mm's at the threaded end, and 1.5mm's in the middle. You would just cut off the J-Bend at the hub end of the spoke. The threading is already 56tpi, so the clevis should just thread on like normal.
I've convinced myself. I'm going to try this next time I need control rods. As a bike mechanic I happen to have a good supply of used spokes to repurpose.
I've convinced myself. I'm going to try this next time I need control rods. As a bike mechanic I happen to have a good supply of used spokes to repurpose.
jtrops
Member
I got a package of R/C parts in the mail today, and immediately screwed a Great Planes plastic clevis onto a bicycle spoke. It's a tight fit, but it definitely goes on without trouble. This spoke as one that came out of a wheel I recently rebuilt, and it has some corrosion on the threads. I suspect a new spoke would go on much easier.
Anyway, now I have an unending supply of control rods.
Anyway, now I have an unending supply of control rods.
Good to know!!! I've had some issues with clevises; mostly it's some that have very soft plastic and a nylon keeper sleeve to keep it closed. Because of that (and because of what I already had on hand), I went to the linkage stopper style that FT uses. It wasn't perfect, but it worked a heck of a lot better on the front steering wheel of my ParkZone Archer than the loose plastic clevis.
That said, I may have to look at the Great planes clevises.
ewokshoter
Member
So from what I gather the nylon clevises are a better choice for the mini arrow than the linkage stoppers due to weight?
some images I have found lead me to believe that linkage stoppers dont need the threading. namely this one
is this the case?
these seem to be one of those things that really are so simple that information is fairly limited but still, id like to be 100% certain before I place an order.
some images I have found lead me to believe that linkage stoppers dont need the threading. namely this one
is this the case? these seem to be one of those things that really are so simple that information is fairly limited but still, id like to be 100% certain before I place an order.
jtrops
Member
You don't need threaded rods for linkage stoppers. I use music wire that I purchased in bulk, and it works great. Occasionally I want more robust rods, and the spokes will work perfectly. The fact that they thread right into the clevis makes for an easy connection, and maybe a little lighter.
I did clean the threads of one of the broken spokes, and the clevis went on perfectly.
I did clean the threads of one of the broken spokes, and the clevis went on perfectly.
ewokshoter
Member
Sadly I dont have access to wire like that. As I see it my choices for the mini arrow are too get the linkage stoppers, pushrods, and battery from FT and pay the extra 10 for shipping. Or too order a battery and these rods with clevises from amazon. is there any reason to not go for the amazon option that anyone can see just from looking at it?
quimney
Member
I get my music wire at True Value Hardware it's pretty cheap there.... I put a z-bend in the servo end, and use a linkage stopper on the control surface end. I have never felt the need to adjust one after the initial setting but the idea of getting 2 z-bends in exactly the right place scares me
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