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Joystick Grommet (Real Identity)
PoDunkMoFo:
Hey all,
Just saw this on e-bay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=13718&item=6177892220&rd=1&ssPageName=WDVW
He says new not old stock. He says correct hole diam.
He got em' somewhere.
quarterback:
--- Quote from: PoDunkMoFo on May 11, 2005, 01:48:40 am ---Hey all,
Just saw this on e-bay 6177892220
--- End quote ---
Fixed link
Stormy151:
Ah, yes. "Lord mounts" we used to call them. I don't know why I didn't think of these.
Used to see these all the time in military aircraft. Avionics racks are mounted to them a lot of times. Some of them were fairly "loose", as I remember, but others were very stiff.
Might check a military surplus for these, especially any that sell old avionics. DRMO would probably be your best bet.
As to the Ms Pac grommet on ebay- I wonder if the guy finds a stock mount then drills the center hole out to the correct diameter?
RandyT:
--- Quote from: PoDunkMoFo on May 11, 2005, 01:23:41 am ---If I understand these mounts they are meant to dampen vibration and the deflection figures listed in the specs are forces perpendicular to the mount. Meaning, at least I think, is that these things were never meant to have force applied in the manner of a joystick. That is why I think that someone somewhere went "Hey that'll work".
--- End quote ---
They also usually have a radial load spec, for side to side movement. But yes, the twisting action is probably way outside of what was expected for these when they were designed.
--- Quote ---He says new not old stock. He says correct hole diam.
He got em' somewhere.
--- End quote ---
That center hole looks too small to be a WICO grommet. I recall seeing someone post that the original Pac sticks had a .250" minor diameter. Maybe that is what this one is and if so, I have 10 of them on my shelf.
If drilling these works out, I'll stock a few of these and put them on the store. They'll be cheaper than this guy on eBay, that's for sure.
BTW, if anyone has a set of calipers and a WICO shaft, please measure it and post the dimensions. I'd like to get a feel for the tolerances on these when they made them. Mine was .006" under the 3/8" nominal. Is anyone else's over nominal?
Thanks,
RandyT
RayB:
I dunno about that auction... It lists Galaga, but from what I remember of my Galaga joy, it has NO grommet. It springs back into place due to two metal "leafs"...