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General control line discussion => Open Forum => Topic started by: Ward Van Duzer on September 03, 2010, 01:59:54 PM
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Been working on my ARC Pathfinder and decided I wasn't real happy with the horns. Some kind of corroded white metal...Anyway I order some real US horns from the Randy man. Guess what? (you already know, I'll bet...har, har!)
3/32nd of an inch is .0937. Chinese 3/32 of an inch is .0999 or something. So I'm not going to rip it's heart out to replace the BC to flap pushrod.
Does anyone know the mm equivalent of .099 so I can drill out the horn?
W.
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Better yet Ward-O, drill'er out and use a ball link instead of a clevis. y1
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Hi Ward ,
Try this ...
http://www.mrt-wheels.com/conversion%20chart.htm
A little , but not a lot of help .
Rob K.
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.099" is equal to 2.5146 millimeters. H^^
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2.5mm / (25.4 mm/inch) = 0.0984 inches.
It's gotta be 2.5mm. Music wire seems to run a bit big, sometimes, so if the wire is nominally 2.5mm it may actually be 0.099". Fortunately drills usually drill a bit bigger than their rated size, so a 2.5mm should work.
Can you open up the hole with a jeweler's rat-tail file?
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...or you can get out your 2.5146 mm drill bit. :##
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Ward, if you are unhappy with the product, let Brodak know. They are good people and service oriented.
Checking over my new P40, I measured the horns and also came up with .099. My many years in manufacturing made me realize they used 2.5 mm coated wire.
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Harbor Freight has Metric drill bits, loose in package so mike them to be sure the right one is grabbed!
Decent enough quality for most stuff.
David
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Try a #39 wire gage size drill bit.
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...or you can get out your 2.5146 mm drill bit. :##
Wait a minute. The guy who sold me mine said it was the only one..............
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Try a #39 wire gage size drill bit.
Yep Phil. Another good chart here. Worth hanging on the wall. Every modeler should have a set of number drills.
http://www.classicfasteners.com.au/TechData/letdrill.pdf
HH
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Ward, et al.
Herb's little chart is great for the shop wall but for inside, at the computer, look at a little program called Versaverter.
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Ah, rocket scientists, guitar players, and machinists...
Thanks troops!
W.
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This my local chop,
http://www.metricsunlimited.com/
Metrics Unlimited.
Bolts, nuts, drills, you name it.
English, French, numbered, SWG, conversion charts,,,,
Take in a stange fastener and they'll ID it and have some in stock.
I wouldn't worry about that 3rd decimal accurarcy stuff, unless you're fitting a piston.
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Why dril out the horn if using ball links? I have been tapping mine for what ever machine screw the ball link has. Using sockets heads screwed into the horn and a locking nut makes for a solid connection. H^^
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The pushrod coming off the BC had a 90 degree bend at the flap horn. Didn't want to make a MaGilla HB~> out of this thing so a 10 minute trip to ACE is the place and 3 bucks for a # 40 (Chinese 3/32nd) drill and I'm back in business. Yes Doc, the elevator horn will be a threaded ball link!
Tanks all.... :D
Ward-O