Containing how to cut an imperial thread
|Philip Major||12/11/2019 13:25:12|
|4 forum posts|
Hi, I am trying to cut a 20 tpi Unf thread on my lathe, anyone got a manual for it , or advice on first principles to work it out, lathe has a 6 cm leads crew
|82 forum posts|
Type 'Harrison 140 imperial threading' into Google.
Inter alia, it will find
These may shed light onto your problem.
Most unlikely to have a 6cm leadscrew unless it has come from a dressmaking shop or is ex-Blue Peter.
|Philip Major||12/11/2019 20:38:33|
|4 forum posts||
That will be 6mm then! As you say
|Philip Major||13/11/2019 07:38:36|
|4 forum posts|
Thanks for this . Answer found on Google as per above post. 3 nice pictures of the settings
|norm norton||13/11/2019 10:12:20|
|98 forum posts|
These imperial tables for a 140 were all on the Harrison Yahoo forum site, I am sure I put some there, but it is all shut down now by the recent Yahoo policy. There is a new Harrison site and I will have to see if the files of reference data have been transferred across.
I will post my simple .jpg of information here in the hope that it is readable. If not message me with your email and I will copy it to you.
Please login to post a reply.
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.
Click THIS LINK for full contact details.
For subscription issues please see THIS LINK.