Thread: Threading Advice…..Again!

I have never used thread wires Richard, but seem to remember grease being suggested to hold the wires while you rounded them all up between the micrometer anvils. Did you try grease or is there a good reason to avoid its use, perhaps it interferes with the accuracy of the measurement.
Rob

I seem to remember someone suggested sticking the wires into a lump of Blutac to hold them whilst measuring took place.

I used mine the other day and found that a strip of masking tape helped keep track of them all. (two close in on one end and the third on the other end of a loop)

Michael

Originally Posted by .RC.

I just compared measurements from Pee Dee to Ausee.. The Ausee ones were a bit undersized on all the ones I measured... But only by say 5 microns if my micrometer can be trusted... The Pee Dee ones seem to be very close to on size..

I just used them the other day, had to make a puller to pull a diesel injector.. The injector had a 22 X 1.5 thread, so cut the thread on the lathe and used the thread wires to get to size... They are a bit of a pain to try to hold though and when using use the fixed anvil of the micrometer on the two wires and the moving anvil on the single wire...

I was going to buy the Ausee ones, me being a tight and all but was not sure if they came with tables. I emailed the seller asking such but never got an answer. Under such circumstances I'm inclined not to buy if they can't even be bothered answering a simple question. I think Pee Dee deserve the sale more since they are upfront with what you get.

Simon

Re thread micrometers and use of indicator:
Thanks for the replies, sorry for the late response, I have been elsewhere for some time.
I understand the cost issue, but as it happens I have been very lucky to buy a chest full of all kinds of micrometers and indicators for what is essentially peanuts. Among them two thread micrometers (0-25 and 25-50mm) using the same (almost full) set of tips.
Have not used any before, that's why I am curious if they can do what thread wires an gauges can do. (any special considerations when using these?) I understand gauges are faster to use in a production environment, but you would need quite a set, especially if using odd combinations of diameter and thread distance. (there were some in same box too btw). As I understand, there is no need for wires now I have these micrometers?
Guess I should really start single pointing threads to find out how to really measure threads.

As for the use of an indicator:
My understanding from watching YouTube video's is that when putting a indicator (dashboard gauge?) Against your compound slide square to the ways, it will show the real infeed/thread depth when the compound is angled 29,5° (or any other angle for that matter)

I understand the dial on the handwheel gives no direct reading in this application, but according to my little experiments and understanding of matters this should work fine. Any experiences and/or opinions?

Cheers,
Peter