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Thread: Tool Post Grinder For the Mini Lathe...Modified Rossbotics plans

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  1. #1
    Supporting Member jjr2001's Avatar
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    Tool Post Grinder For the Mini Lathe...Modified Rossbotics plans

    The original plans by Doug Ross are available here:
    http://www.homemadetools.net/forum/t...6306#post66224

    The plans are very detailed with instructions and photos.
    My lathe is only a 7x16 so the grinder is a bit large for my setup so I did have to make some changes.
    Biggest change was the length of the support bar that attaches to the tool post. I cut 4 inches from the length
    and I placed two holes in the bar so that I had two options for mounting on the tool post.
    The belt specified was not available. I actually ordered the belt and the supplier cancelled the order since it was not in stock.
    I did have a few timing belt pulleys so I used them along with a 540mm x 15mm wide timing belt.

    I also changed the motor to one I found on eBay that was much smaller and made adjustments to the mounting plate.
    The spindle was shortened by 1".

    In retrospect I could have changed the external grinding shaft from .500" to .375" to use smaller grinding wheels.

    With the grinder mounted on a custom tool post riser and using the longest reach I have more than 3.5" from
    center of the lathe to center of the tool post grinder. That should be enough reach for anything that I would need to grind.

    Overall this is a great set of plans that can be modified to your specific needs without much work.
    Thanks again Doug for a great set of plans.

    Cheers, JR

    I will post this build in sections since there are more than 20 pictures to post.
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    Last edited by jjr2001; Jan 23, 2019 at 02:12 PM.

  2. The Following 4 Users Say Thank You to jjr2001 For This Useful Post:

    Paul Jones (Jan 27, 2019), PJs (Jan 25, 2019), rossbotics (Jan 24, 2019), Seedtick (Jan 24, 2019)

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