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| Bloomers and cock ups learning to cut thread on the lathe |
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| NeoTech:
Agreed, that would clear it up. But i imagine you learned your lesson from that. =) Im a bit lazy when turning inside threads.. preventing tool crashes and such.. so i usually set it up so i cut from the bottom and out instead but reversing the chuck so it cuts the right hand thread in reverse (does that makes sense?). When i figured that one out i ended with having problems cutting internal threads where i couldnt see the bottom of the hole properly. =) |
| Jonny:
Exactly what I thought Mick, need opposite hand tool. For an external left hand thread can start at chuck end or mount tool on opposite side and spin up clockwise. No need to adjust compound the pros don't. |
| Bangkok Mick:
--- Quote from: NeoTech on June 29, 2013, 10:54:58 AM ---Agreed, that would clear it up. But i imagine you learned your lesson from that. =) Im a bit lazy when turning inside threads.. preventing tool crashes and such.. so i usually set it up so i cut from the bottom and out instead but reversing the chuck so it cuts the right hand thread in reverse (does that makes sense?). When i figured that one out i ended with having problems cutting internal threads where i couldnt see the bottom of the hole properly. =) --- End quote --- How can you bottom with no cross slide or compound adjustment for setting the depth of the cuts? |
| Bangkok Mick:
--- Quote from: NeoTech on June 29, 2013, 10:54:58 AM ---Agreed, that would clear it up. But i imagine you learned your lesson from that. =) Im a bit lazy when turning inside threads.. preventing tool crashes and such.. so i usually set it up so i cut from the bottom and out instead but reversing the chuck so it cuts the right hand thread in reverse (does that makes sense?). When i figured that one out i ended with having problems cutting internal threads where i couldnt see the bottom of the hole properly. =) --- End quote --- How can you bottom with no cross slide or compound adjustment for setting the depth of the cuts? |
| NeoTech:
Cuz i dont cut threads with the compound, just a straight plunge cut, i havent bothered about setting angles and such. It works just goes slower. But i guess its not the recommended solution. Make a little "slot" in the bottom to start the thread from and just figure out how deep you are taking the cut by setting a dial indicator on the cross slide. And figure out forehand how deep your gonna make the thread. |
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