Hello,
Has anyone had threading problems with their 1340 lathe, such as wrong dial engagement information on the Legond plate or in the manual or incorrect dial gear, leadscrew, incorrect half nut etc. My lathe is made by the same mfg of the PM1340 Liang DEI of Taiwan but is their 1236GH model which in every way identical to the 1340 (same p/n's) . My issue is the engagement info is wrong or incorrect internal parts, according to the manual/dial legond plate to thread a 20 TPI I am to use any number 1-8 on the dial but I get a mess after threading (thread splitting). Upon further investigating I found if I use either 1,3,5,7 or 2,4,6,8 I get a perfect thread. I have checked all parts for correct dial tooth count (32), leadscrew TPI (8). I have had no luck with the company I bought the lathe from , they claim if I am now able to cut threads then use that method but I disagree, I would have to go through every thread TPI to verify the engagement process. Anyone have any suggestions of what may be going on.
Has anyone had threading problems with their 1340 lathe, such as wrong dial engagement information on the Legond plate or in the manual or incorrect dial gear, leadscrew, incorrect half nut etc. My lathe is made by the same mfg of the PM1340 Liang DEI of Taiwan but is their 1236GH model which in every way identical to the 1340 (same p/n's) . My issue is the engagement info is wrong or incorrect internal parts, according to the manual/dial legond plate to thread a 20 TPI I am to use any number 1-8 on the dial but I get a mess after threading (thread splitting). Upon further investigating I found if I use either 1,3,5,7 or 2,4,6,8 I get a perfect thread. I have checked all parts for correct dial tooth count (32), leadscrew TPI (8). I have had no luck with the company I bought the lathe from , they claim if I am now able to cut threads then use that method but I disagree, I would have to go through every thread TPI to verify the engagement process. Anyone have any suggestions of what may be going on.