"W" Class threaded rings

Started by MIRCS, 04-08-2010 -- 10:52:44

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MIRCS

04-08-2010 -- 10:52:44
How y'all calibrating these accurate little bastages.......

ck454ss

#1
04-08-2010 -- 13:04:43
The best way to calibrate them is with the proper Set Plug.  You could use a LMM with sphere tips but its a bitch to adjust an OOT ring that way.

MIRCS

#2
04-08-2010 -- 13:32:21
Quote from: ck454ss on 04-08-2010 -- 13:04:43
The best way to calibrate them is with the proper Set Plug.  You could use a LMM with sphere tips but its a bitch to adjust an OOT ring that way.

All these W rings are solid and non adjustable. Below 16TPI the tolerance is +/-0.0002 above 16TPI +/-0.00015.

I've got a SIP305 and use it for them right now with the ruby tips.  They used to use a Johnson Gage Standard, with gage blocks, wires and segments, but that no way met our 4:1.

I wish they made plugs to cal these with
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