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  1. #31
    Join Date
    Dec 2013
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    56
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    I hope this helps, I've gone back to it a few times as I get rusty and forget.

    https://littlemachineshop.com/mobile/bolt_circle.php


    https://youtu.be/1SQwTBeViK0

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  2. #32
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
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    6,439

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    Hi Dave,

    Thanks ! I followed the video instructions and found that it works the same way on mine, but its anything but obvious. Normally I would have just got the RT out and used that.

    Thanks for the link !
    Best Regards:
    Baron J.

  3. #33
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    Dec 2013
    Age
    56
    Posts
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    No problems mate, I seem to always have to revert back to that doing bolt hole circle's.
    My excuse is I have to many projects going on to catch up on in my brain and have to push something out,lol. But I just don't use that function enough to know it of by hand.
    I don't use a computer or cad etc to design, just thoughts in my head and scribble drawings in many pads.

    I've made all the brackets today in between family outings to fit twin LED mill lights and to move my readout to the left (without drilling any new holes in the mill) will see how it goes over the next few months.


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  4. #34
    Join Date
    Sep 2008
    Location
    Narrabeen, Sydney NSW Australia
    Posts
    101

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    Very well documented thread Baron!

    Can I ask a favour please - are you able to measure the width and depth where I've marked with the red lines on your photo

    thanks

    Glenn

    03-03-2021-003.jpg

  5. #35
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
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    6,439

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    Quote Originally Posted by ruckusman View Post
    Very well documented thread Baron!

    Can I ask a favour please - are you able to measure the width and depth where I've marked with the red lines on your photo

    thanks

    Glenn

    03-03-2021-003.jpg
    Hi Glenn,

    Exactly 6 inches by 5/8 inches.

    If you are going to mount the read head on the front like I did I just used a piece of 3 mm thick alloy plate drilled and tapped to match the read head and used a couple of M6 counter sunk screws to secure the plate to the front of the slide and then when the scale was fitted used 3 mm spacers to stand it off.

    This meant that I lost access to the table locking screws ! However I have an idea how to solve that problem. Up to now I've just put the table drive into gear without power but it does allow the table to move slightly against the gears.
    Best Regards:
    Baron J.

  6. #36
    Join Date
    Sep 2008
    Location
    Narrabeen, Sydney NSW Australia
    Posts
    101

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    I don't know if you recall my lathe purchase - I need to update that thread.

    Anyway I've been pondering adding a compound slide table for some positioning and basic operations
    https://metalworkforums.com/f65/t209...-3#post2007579

    One compound table that I looked at as being potentially useful is the Vevor one - value for money on a price per KG basis, but it isn't a milling compound table - lots of peeps on youtube reworking them to get better accuracy.

    https://www.vevor.com.au/rotary-tabl...p_010230619047

    I stumbled across the 500mm version of yours for a price which isn't eyewatering.
    https://forestwest.com.au/products/p...00-180mm-table

    That table (same as yours except for length which actually suits me) will straddle the gap between the front two protrusions of the carriage - the gap is about 135mm
    My idea was to hopefully allow the table upper to go down prismatic sliding supports on the ways.

    If I could get it sufficiently close to the cross slide then 25mm flat bar with dovetails cut should put it hard up against the cross slide.

    My swing is ~10.5" - so with sliding supports of appropriate height I could have the table centre at spindle centre with the compound table bridging those two from carriage bits.

    Angle plate or the tool holder hard mounted without the compound would provide support which marries it with the cross slide.

    Potential powered cross X feed using the cross slide?

    Lots of pieces to the puzzle - I need to stare at things for a bit longer to see if I've missed anything obvious

  7. #37
    Join Date
    Dec 2007
    Location
    Adelaide
    Posts
    574

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    I've got one of those Vevor X/Y tables, however mine came from Ebay, it looks identical it was $165. While doing a CNC conversion on my mill I needed to use a mill so I bolted it down to the mill while the original X/Y table was on the workbench. While they do work the quality leaves a lot to be desired for precision work, after mine arrived I checked out a few youtube videos and it seems the build quality is very variable, most youtubers though seemed to think that with some time and effort, the table could be turned in something half decent, this something that I may do in the future - mine actually has the X and Y axis at 90deg to each other, unlike one youtube video I saw.


    Seems like you are wanting to fit it to a lathe to use as a vertical milling slide - is that right ? in my opinion it's far too big for that type of use, it's certainly too big for my 300x600 lathe, a purpose built vertical milling slide can be had on Ebay for around the same price, IMHO a much better proposition - however if you are determined to plough ahead and need some measurements to see how things would fit, let me know.

  8. #38
    Join Date
    Sep 2008
    Location
    Narrabeen, Sydney NSW Australia
    Posts
    101

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    For their price the Vevor tables look to be value for money - I've not seen anyone with incurable issues with theirs.
    I very nearly bought one.


    That's why the Forestwest compound table is under consideration - it's the same compound table as the smaller version which shipped with the Optimum BF-20 mill.

    I do check ebay occasionally - the only drawback is the vertical milling slides are narrow, I've got something ~300mm wide that I'd like to position at 4 points about 225mm apart in total - that's the drawback to the smaller vertical milling slides and on the end operations I'd have about 220mm hanging out off of the end.

    The longer table solves that issue, as for the rest is really just a beefed up version of the smaller ones with more travel in what would be the X direction for a mill

  9. #39
    Join Date
    Oct 2019
    Location
    Adelaide, SA
    Posts
    1,198

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    This autoplayed on my YouTube the other day:

    https://youtu.be/_2KEGriaszE?si=X_w0K49XkhEvPZ7Y

    Worth watching before you buy the Vevor XY table.

    Michael G has shared his experience with a smaller version of a similar table (I am not sure its a Vevor but appears to have come from the same pile at the factory):

    https://youtu.be/rnD_JSgFyGs?si=8qDNMygpfZGYfEK-

  10. #40
    Join Date
    Dec 2007
    Location
    Adelaide
    Posts
    574

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    While the Vevor table looks the same as my Ebay table it may well be a top-quality item, mine is ok but a long way from top quality - with these things coming out of China it's hard to tell these days if they all come out of the same factory or if a bunch of foundries have all jumped on the bandwagon and copied each other.


    What you propose may well be feasible, like I said if you need any dimensions to see how things fit before you jump in then let me know.

  11. #41
    Join Date
    Sep 2008
    Location
    Narrabeen, Sydney NSW Australia
    Posts
    101

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    Quote Originally Posted by kafie1980 View Post
    This autoplayed on my YouTube the other day:

    https://youtu.be/_2KEGriaszE?si=X_w0K49XkhEvPZ7Y

    Worth watching before you buy the Vevor XY table.
    as co-incidence would have it - Youtube bumped that video across my feed the other day - he's very good, seen two of his videos thus far.

    I've ruled out the Vevor table for various reasons, simplest being the X axis travel, that's why I was excited to find the forestwest BF-20 table - extra X travel and I can potentially have it anchored/supported at three points - one directly on parts on the bed, second one on the first tier of the carriage and the third up at the tool post level on or close to the spindle axis.


    Quote Originally Posted by kafie1980 View Post
    Michael G has shared his experience with a smaller version of a similar table (I am not sure its a Vevor but appears to have come from the same pile at the factory):

    https://youtu.be/rnD_JSgFyGs?si=8qDNMygpfZGYfEK-
    Three very good videos, he really gets thought it and uses a whole suite of skills

    I've got that exact same table, I've not gotten as far as measuring anything - just inspection to verify that I could flip one axis to have the handwheels in the correct orientation.

    To put it to use I need an angle plate which was mostly out of stock at most places when I looked previously.

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