Request for long threaded pushrod

Identified a potential failure on the elevator control on my new toy. The only solution without surgery is a 30' threaded end pushrod such as a DUBRO 2-56 x 30" (DUB 173) or the longer version (DUB 890). The UK importer has none in stock until end FEB
If anybody has one spare please advise 07740 642832

www.dubro.com/products/2-56-threaded-rods-30-762-mm

OR (may be a silly request) but if there any ex cycle builders with a spoke thread roller !

I know this might be a silly reply but I wonder if proper bike shops keep long wire to make up spokes and then thread 'em. Also I am sure you don't need 30 feet. 30" should do it.

I'm assuming the wire has to pass through a pre-existing plastic guide tube?
What about 2mm piano wire and solder a coupler on after its passed through the tube?

MikeSeale wrote: I'm assuming the wire has to pass through a pre-existing plastic guide tube?
What about 2mm piano wire and solder a coupler on after its passed through the tube?

Correct Mike. and I have carried out just that but the coupler is hidden so i would be much happier with an integral thread to screw into the ball link connector

Hi Kevin - Just had a rummage best I can offer are 10 off M2 x 300mm threaded rod - threaded 20mm.
These came from Logic RC - in Hertford perhaps they may have what you want - www.LogicRC.com
Other option is to run a thread cutting die down suitably sized piano wire.
Hope you get sorted.
Regards
Colin.

4Pedalsfly wrote: Other option is to run a thread cutting die down suitably sized piano wire.

Done that, piano wire and bought a set of very small metric dies and threaded it myself. For B25 bomber internal elevator control as Horizon had left it out of the box

Phil Ford wrote:

4Pedalsfly wrote: Other option is to run a thread cutting die down suitably sized piano wire.

Done that, piano wire and bought a set of very small metric dies and threaded it myself. For B25 bomber internal elevator control as Horizon had left it out of the box

Good luck with that - piano wire is very hard and you will possibly lose teeth on your dies!

Thanks all but as Mike deduced i need to feed the replacement pushrod from the servo tray down a plastic tube to the internal tail controls so the min length is 30".
Most pushrods are ITRO 1.6mm. Any thinner will slop around, any thicker will stick. Even if a used softer wire to enable cutting a smaller thread - eg m 1.6 - where do i find a clevis / ball end with that size thread. Thats why the threads on 1.6m pushrods ( and cycle spokes) are rolled which expands the material to m2 or the Dubro units UNC 2-56.

Sound like you have a similar setup to the all moving tail in my Phase 5. My solution was to use one of these:

hobbyking.com/en_us/alloy-clevis-for-non...2mm-control-rod.html

I know that you do not like them from an engineering standpoint due to the threaded pin. However, my counter-argument would be that our models would have to fly for so many hundreds of hours before that became an issue and by then we would have either crashed or got bored with the model.

Another option would be these:

hobbyking.com/en_us/threaded-ends-m2xl20mm-10pcs-set.html

You could then use a ball link or a standard clevis assuming you had enough clearance at the tail end to include the coupler as well as the clevis/ball

JRI wrote: Good luck with that - piano wire is very hard and you will possibly lose teeth on your dies!

I think a lot of what we buy as 'piano wire' is not piano wire. I've got some that cuts easily and bends easily too - definitely not piano wire