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  1. Luiz Fernando Pinto

    Trouble with cut off operations

    I am still learning some lathe operations. But I've learned a lot here from you. I am still setting up my workshop and have done a lot of tools. But soon I want to make my first models. If you are interested in following my evolution you can see in my Instagram @luiztools. But this Instagram...
  2. Luiz Fernando Pinto

    Trouble with cut off operations

    Thank you all I learned a lot from all the posts. Thanks also for the "dont do that", obviously i am still learning and your help was essential.
  3. Luiz Fernando Pinto

    Trouble with cut off operations

    I align this way
  4. Luiz Fernando Pinto

    Trouble with cut off operations

    Thanks for the considerations, XD351. I did not know much of it and other colleagues' information. I will improve my fixation, position and lubrication and then I send news. Thank you again. Ah, I don't know the quality of the machining inserts. So if after all this doesn't work out, I buy new...
  5. Luiz Fernando Pinto

    Trouble with cut off operations

    I am thinking that is a too long piece, 150mm is too far away to the chuck, right? I'm doing the cut off near the live center. it is aluminum 2" x 150mm.
  6. Luiz Fernando Pinto

    Trouble with cut off operations

    Also cut near the chuck. - Its a 150mm long. Feed the tool at a steady definite rate, You can work-harden some materials if you are not feeding steadily and cutting.. - Ok, noted. If you are using a HSS cutting tool and you can sharpen it, sharpen it often. If the cutting edge is not cutting...
  7. Luiz Fernando Pinto

    Trouble with cut off operations

    Have you made certain that the tool is at center height? - Yes, I aligned with the live center. With steel make sure you use plenty of coolant. - Ok, noted. I would recommend running the lathe at it's slowest speed, (Backgear). - Even with the slowest possible speed i´m in trouble. Make sure...
  8. Luiz Fernando Pinto

    Trouble with cut off operations

    I'm searching here on the same site, already found something. Only after the post that I remembered this research, sorry. But if you want to contribute new information I appreciate it. Thanks.
  9. Luiz Fernando Pinto

    Trouble with cut off operations

    I am in trouble with cut off operations. I tried with a 3mm tool, then with 2mm tool (see photo). I don´t know if it the rigidity of my lathe. I´m lost. Could you help me? Even when i try to cut alluminun or brass. troubles that i found in the operations: - lougth noise - it don´t cut - i am...
  10. Luiz Fernando Pinto

    pre drilling for holes

    It is a remnant of swarf, definitely. Look at the cutting edge.... it's almost identical to the photo you posted.
  11. Luiz Fernando Pinto

    pre drilling for holes

    It was not reverse mode, i never use this way.
  12. Luiz Fernando Pinto

    pre drilling for holes

    Thanks a lot for the discussion. I will send the drill for my supplier, he requested to send to him. Any new information i´ll post it here.
  13. Luiz Fernando Pinto

    pre drilling for holes

    Look why i thouth it was a fake Dormer tool, but it is not. 3 reasons. 1 - The chip that came whith the tool. 2 and 3 - A bad ending, at the chanfer edge and blurred letter. Despite the photos, it's not a fake or cheap drill. So, after all, that's why i am thinking it was the large pre...
  14. Luiz Fernando Pinto

    pre drilling for holes

    It´s not a cheep drill bit, it´s a dormer A002. And i thought that was a fake Dormer but it´s not. I alread taltked to Dormer and my outfitter. So, i´m not sure what material it is, but it is a low carbor, i think. It´s a shame, but the previouly drill that I made were ok, for example, 8mm...
  15. Luiz Fernando Pinto

    pre drilling for holes

    Hello, i made a hole with 10 mm diameter them the final diameter 11mm, my tool became like this and i didnt made the final hole, obviously. Is that because the relation of the diameters was too small?
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