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| A thing..... |
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| bogstandard:
You're right Nick. You will find that when using one of these, you give your tooling a couple of extra degrees all round, just to make up for it. Or else, put a bit of packing underneath, but that isn't as critical as trying to shim for correct height, just a matter of raising the tool a bit. Bogs |
| John Stevenson:
Here's one I did originally in the 1980's http://www.metalwebnews.com/howto/toolpost/toolpost.html This was done because at that time there were no cheap imports and the only one available was the Myford Dickinson one which was too expensive for me at the time. It wasn't a copy of anything and a clean sheet design, compared to modern posts the dovetails are inverted. This was done purposely as I wanted the holders to be easy to make going along the lines of you need more holders than posts. The holders were made in strips on a horizontal mill with a 60 degree angles cutter at night school in 18" lengths and cut off as needed. That particular post and the 17 ? odd holders have long gone but I still use a slightly scaled up version on my lathes today. I have three nearly identical posts and about 50 holders what swap between 3 lathes. Would I do the same today ? Probably not as it's cheaper to buy these items but sometimes it's not about buying / obtaining. most of my early equipment like rotary tables, dividing heads, morse taper arbors and even a Dore Westbury milling machine were made in my workshop. The experience of doing this is priceless. John S. |
| NickG:
Good stuff John S, the type I want is circa £100 so if I could make one for nothing it would be good, however, it'd be a pretty sizeable project for me and the limited time I get in the workshop. I used to have a dore-westbury but unfortunately it wasn't a particularly well made example. When I was younger, I also bought a Centec 2A mill (great quality machine), I intended to fit the vertical head from my dore-westbury onto it but as it wasn't too clever it wasn't worth it so bought a new mill. I got the milling machine from an auction, but bizzarely, it belonged to an, unfortunately, deceased member of our club. He had a dore-westbury vertical head ready converted but donated that to the club. I offered the club good money for it as it was a good one, but they declined saying it was useful to train people up on rather than the big beast of a warco thing! Nick |
| raynerd:
Well guys - it is a start! I`ve hacked a piece off the end of my steel bar and all is looking good. The chop saw went through it pretty easily, took about 3 minutes to get to half way at which point I let it cool for 30 minutes then went back to finish it off. Clean cut just not perfectly straight but I soon rectified that by facing the end up roughly in the lathe. However, not using the chop saw before, I cut about 0.25" over size to give me some play and basically I have this on the block so I`m going to have to take it off in the lathe - that could take a while! So next job is to face up the end and bring to size and then drill the bore for the off centre cam. I just need to have a think about sizes and also whether I need to drill it off centre like Darren did. I`m not to sure that if I just drill it centre that I`ll have enough clearence anyway. I guess I need to face up and then have a good mark out and think.... Anyway, tiz a start! First picture shows the bar and also the block that I intially found and was going to use. I choose the bar in the end because the block didn`t give me enough height. |
| Darren:
Beats handsawing dunit.....did the saw complain or the blade grab at all? It looks like it cut fairly well without too much burning evidence......nice one :thumbup: I suspect that is not hardened steel which you will be o-so-grateful for..... :ddb: |
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