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12th November 2010, 05:30 PM #1
Adapting Milling Attachment for AL320
I purchased a vertical slide/milling attachment for my AL320 some time ago and was told by the merchant that it would fit straight on my lathe without any mods........yup! You learn eh?
Anyway, this is what it looked like out of the box and that's the way it stayed for some time too..........while I ummed and ahhhred what to do with it aside from taking it back to the salesman for a suppository
Attachment 152841
When I examined the mounting base plate on it, I noted that it did not fit the mounting bolt registration on my cross sllde
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On another forum I saw that the person who was faced with a similar problem actually drilled and tapped the cross slide to mount the bottom plate ...on mine, this didn't leave much room with the existing T slot cut into it and when I looked at it closer, thought it would not hold well at all......I could have used an adapter plate but then you run the risk of reducing your height to work with ..I thought if I mounted it as per exisiting registration and T slot - then I could also rotate it like the normal compound rotation and use the angular markings if needed. To do that I would be better off with another angle plate. The other method left it fixed in the one aspect and left no room for angular error if you drilled and tapped the mounting holes slightly off.....which for me was an even bigger risk
I then measured the base and bought an angle plate to fit as the supplied one did not fit......it was much cheaper to purchase from OS than local - even with the freight .
Anyway when it arrived I then set about making some indexing buttons to fit the registrations on both the face and base.
Attachment 152845Attachment 152846Attachment 152847Attachment 152848Attachment 152849
So I made up the buttons to size, drilled the base plate for the T Bolts and made new T bolts to fit.
Once they were in place, screwed and loktited in I then mounted it up to the cross slide, fitted the vertical slide to it and checked it for rotation which worked. This allows me to take side or angular cuts if required.
Attachment 152851Attachment 152852Attachment 152853Attachment 152854Attachment 152855
Once in place I fitted a vice to it and tested it........it's just a drill press vice and not what I intend to use but it worked Ok for some facing cuts......a proper milling vice is also on order
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There have been some brilliant and far better adaptations of slides and vertical mills posted on this forum - mine is just one method of mounting it to the AL320 from a bought cheapie setup.........I'll replace it one day with something better, but it's a start.......hope it helps someone have a go too...................Lee
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12th November 2010, 05:58 PM #2Dave J Guest
Hi Lee,
There is nothing wrong with that, I think it came up great.
It looks a lot sturdier than it would have been with the supplied base it came with.
Your salesman wasn't lying, he just meant it would fit strait on with some modification by a skilled person.
That sounds like my salesman when asked about 560mm X travel on my mill instead of the advertised 600mm.
His reply "You could get it with some modification".
Now I see why your working on the collet chuck, good luck with MK2.
Dave
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12th November 2010, 06:53 PM #3
Thanks Dave,
The annoying thing was that the salesman repeatedly assured me there would be no fitting or adjusting with it - it would bolt straight on to the AL320 using the same T bolts even - and this was the same company I purchased the lathe from initially??? It was interesting to read posts by others about their similar experiences with sales staff who didn't appear to know the products they sold....makes you wonder how many punters there are out there like me who have purchased inappropriately based on ill informed advice....or have items sitting there not knowing how to use them
I wanted to do some milling and cut keyways so thought it easier and cheaper to go this way first, and learn the process before I embarrass myself too much.....
I didn't post these two exercises as highly machined tool gloats........(not that vain - you've seen my work????..... )...but hopefully give others the confidence to at least have a go at making something......even if it's ends up as an anchor, at least you are making swarf and like beer, that's good for blokes too............................
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12th November 2010, 07:35 PM #4Distracted Member
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Well done Lee. Yours has the advantage of swiveling in two planes, so should be really versatile. The slight downside is that's two more settings you have to worry about getting right when trying to get a piece square. I went for simplicity and solidity with mine which is great, but I may end up making a swivelly one like yours too. Do you mind me asking where you got the angle plate?
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12th November 2010, 08:13 PM #5
Bryan,
Got the angle plate from Shars shars.com - Angle Plate 6x6x6quot - it was about 1/4 the price I had been quoted elsewhere - it is cast iron and quite sturdy - I chose a 2 ribbed version and ran the risk of one of the ribs being above the T slot....if that's an issue you can always cut a slot for the nut in the rib or move one of the holes - you'd only need two as with the compound but I chose 3 as easier to maintain accurate locking - ....freight was quoted in a Medium Flat Rate box via USPS at US$45.45.....
When ordering from Shars, I have been advised to email them direct for a freight quote as their web based system is not geared up for overseas rates......you can email David Chelsvig at Shars on [email protected] or call them which I tend to do using VOIP - they are very helpful.
For the ER40 collet set and chuck, I used CTC......[email protected] that the hyper links didn't come through for the email addresses above.......Lee
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