taut wire alignment limits
taut wire alignment limits
(OP)
A large experimental machine is being built. Finished Bearing bores are over 24 inch diameter and about 108 inch C-C.
We need to confirm bore-to-bore alignment and also position a 120 inch inside diameter stator relative to the bearing bores. Laser kits for stuff this big is a little rare.
What kind of tolerances are practical and reasonable using a "taut wire method ?
Thanks,
Dan Timberlake
We need to confirm bore-to-bore alignment and also position a 120 inch inside diameter stator relative to the bearing bores. Laser kits for stuff this big is a little rare.
What kind of tolerances are practical and reasonable using a "taut wire method ?
Thanks,
Dan Timberlake





RE: taut wire alignment limits
Here is a company that did have a very knowledgeable person on staff that could answer your question. They also carry all the equipment need for taut line measuring.
http://www.powerhousetool.com/align.htm
RE: taut wire alignment limits
RE: taut wire alignment limits
Depends really on the attitude of the wire, I worked extensively on taught wire measurements in machine tools - but we always ahed the object to be measured in sucha position that the wire was vertical - supending a weight, the weight being in a bucket of lube oil.
We used a converted micrometer with a sinple bell & buzzer (low voltage) the micromter mounte in a simple fixture that allowed the alignment to be referenced to the wire (the micrometer had a pointed contact end where the ratchet used to be)
We obviously couldnt exceed the accuracy of the micrometer - but we could discriminate 0.001 over distances of 30ft plus (gauging perpendicularity).
If you want to email & sketch the shape of the housing I might be able to suggest a method
Best of luck !
Bruce L Farrar.
Works Engineering Manager
Marshalls Mono PLC.Brookfoot Works.
Halifax W.Yorks UK
RE: taut wire alignment limits