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  1. #1
    Join Date
    Sep 2009
    Location
    Townsville
    Age
    72
    Posts
    21

    Default Simple, Adjustable, Stable Toolpost

    Attached are photographs of my first project from my Hercus A, Serial A7323, 1960, a toolpost from "The Model Engineer" of

    January 1970. I have attached the article as well.

    It has been an experience in using a 4 jaw chuck, turning, facing, knurling and threading.

    I have a long way to go to be good, I know, but this was something I have wanted to do for a long time.

    Technically, I altered the design to accommodate a holder for tool steel. All other aspects are the same.

    I think I will find it to be a better toolpost than the single bolt type supplied with this lathe.

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  3. #2
    Join Date
    Nov 2005
    Location
    adelaide
    Posts
    667

    Default

    well done ... im using this design and it works very well and its great to build something and learn at the same time
    how did you cut the peice away from the clamp bolt i cheated and left it all there.............. i used a cap screw but when the cut was made it sprung and i had to drill out the clearance a bit more
    what did you use for the plate inside the topslide slot

  4. #3
    Join Date
    Sep 2009
    Location
    Townsville
    Age
    72
    Posts
    21

    Default

    Hello tanii51
    Thank you for the compliment. Now to your queries.

    I did all the cutting with a hacksaw. I marked the cut lines on masking tape. Being careful.

    I allowed bigger clearances than specified for both the height adjustment and the pinch bolt. Up 1/32".

    The plate that sits on the top slide against which the height adjustment screw bears, was made from 3mm plate. This was the thickness to allow me to get a tool tip under centre. I cut a square of plate 65mm dimension and bored 1/2" hole in the middle. This is the size of the main bolt. I mounted the square onto 1/2" headless bolt and tightly nutted both sides. I spun this in the 4 jaw and brought a 2mm wide tool in along the bed. I held the bolt with a live centre.

    Obviously, I haven't restored the lathe. It is a good old thing that is quite accurate. This tool post makes in look like a rat with a gold tooth, now.

    Regards

    Frank

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