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
|201 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|
|118 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.
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