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Joystick Grommet (Real Identity)
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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"...
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