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  1. #1
    Join Date
    Apr 2009
    Location
    Ballina N.S.W.
    Posts
    644

    Default AL 1000D Lathe compound modification.

    The compound angle adjusting mechanism on my lathe has been anoying me for a while so I deceided to fix it. The problem is the access hole to slip the T nuts into is located in the wrong place. When you want to set up an angle of 30 degrees the rear most T nut ends up partially in the access hole resulting in the T nut tilting as you tighten it and often ends up stuck.
    I made up a spacer ring that locates the two T nuts in position and fitted two round spacers, this combination prevents the T nuts from tilting when tightening them- result no more stuck nuts. A few pictures of what it looked like originally and the modification.
    Bob

  2. #2
    Dave J Guest

    Default

    Hi Bob,
    Good fix and one other AL1000 owners should do.
    You would have thought they could have put it at the 3 o'clock position as it wouldn't get used much if at all in that position.
    Unlike yous, on mine there is a hole in the base to get the T bolts into the slot, so the rim is left untouched.

    How are you finding the DRO? On mine when I am getting close to size, I will measure the job with verniers or mics, input it into the DRO and go from there to finish the part.
    My zero is always moving because I use HSS and after resharpening or turning the tool post/compound it upsets it, so the storing tool number function is useless for me.

    Dave

  3. #3
    Join Date
    Jul 2010
    Location
    Melbourne
    Posts
    9,088

    Default

    Good going Bob.
    I meant to ask you in your DRO thread, what do you think of the back tool post? Did you design your own QCTP?(not that I really need to add anything to my to do list ATM lol)

    Stuart

  4. #4
    Join Date
    Apr 2009
    Location
    Ballina N.S.W.
    Posts
    644

    Default AL 1000D Lathe compound modification

    Hi Dave,
    Your lathes compound design sounds like it is a lot better than mine. I have my DRO set up OK now. I did a lot of playing around with the linear error compensation set up to get the y and z axis to read correctly.Like you said I find the tool number function of no use. I have not tried the zero set up as I am constantly changing tools and angles.When I made the two round spacer washers for my compound fix I had a piece of 1.125" dia bar, I did a clean up cut and measured it with the micrometer, then used the DRO to get to the final size in three passes. I then measured it again and it was very close 0.0002".
    Hi Stuart,
    I like my back tool post and part off with it on most occasions, it is much more ridgid and now with my DRO it makes multible cuts an easy task. My QCTP is based on the Groz design, I just beefed it up a bit and made 15 tool holders for it so that I can have lots of tools set up. A QCTP is an essential item I think.
    Bob

  5. #5
    Dave J Guest

    Default

    Hi Bob,
    I use mine in the diameter mode all the time. What I do is do a clean up pass and then a light pass. Once that is done I measure it and put that number into the dro (on my Meister when set in diameter mode it will automatically double the number as it inputs as radius) so I then have to push the half button and the axis to get it back.
    Doing this will get your tool set up to read zero in the centre of the job.

    Dave

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