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Old 05-05-2015, 02:39 AM   #51
timoxx4
 
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Originally Posted by rodw View Post
The otber alternative would be to make your own crossslide. I've thought about that a couple of times. I'd probably use Cast Iron which you can get from George Weston. They cut to size.
Yeah well that could be a possibility. One like John's only bolted with T-nuts to the carousel maybe ?


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Old 06-02-2015, 10:40 AM   #52
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Hi Rod
Saw your post on adapting a BXA to your new lathe and it gave me confidence to tackle mine. Just bought a Sieg Runmaster 330x 1000 lathe and it had a old style toolpost with a insert post. No T slot in the compound like American machinery.

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It had a european post similar to yours. The shaft was 16mm but the Boss at the bottom was 25mm and had to go. Decided to make a new post from scratch.

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When I removed the compound it was obvious that the post was a press fit with a roll pin to stop rotation

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I pressed it out and machined a new one. Luckily I still have my old Sieg SC4. Started with a 40x140mm piece of 12L14 and my little lathe was required to remove most of it. Single pointed the 16mm thread. The 25mm boss is now shorter and does not protrude above the top of the compound allowing the QCTP to sit down on top of the compound.

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New Phase II BXA in place

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Cheers
Ron


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Old 06-03-2015, 11:58 AM   #53
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Ron, looks great. It amazing how much interest this post about a really simple modification I did ages ago has inspired others to have a go.
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Old 06-04-2015, 01:36 AM   #54
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Still yet to do mine. Just waiting on the lathe parts from Hare & Forbes so I can machine the boss down on the compound slide. 12 weeks for the new parts to arrive so I have a bit of a wait.

Damn you Ron you had it easy. lol I wish my boss was like that.
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Old 06-04-2015, 02:22 PM   #55
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Hi timoxx4

Sorry if your situation is more difficult than mine. If it was my lathe I would remove the compound to see how the actual post is attached under the compound. Then just mount the compound on the mill and mill off the centre boss. I assume the larger boss is flat on top since that is what the original Toolpost mounted on. I wouldn't worry too much over making an irreversible change to your compound because once you mount your QCTP you will never want to go back. After the small boss is gone making a new 16mm post is a breeze
Cheers and goodluck
Ron
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Old 06-04-2015, 02:38 PM   #56
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Quote:
Originally Posted by ronboult View Post
Hi timoxx4

Then just mount the compound on the mill and mill off the centre boss. I assume the larger boss is flat on top since that is what the original T
thats what I had to do on mine
much more rigid also
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Old 10-29-2016, 07:03 AM   #57
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Following in Rod's footsteps on my own AL320G.

Started with a big ass bolt, way larger than it needed to be but it did provide some turning experience that for a newbie was/is much needed.

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Bolt fits nicely with very little slop.
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Length is about bang on and once the washer is on the top it will be perfect.
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Next step will be mounting and then we are away.
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Old 12-27-2016, 11:51 PM   #58
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Another Al 320G QCTP convert here, thanks to Rod. Only thing that sH^t$ me is that the tool post can only take 1 holder at a time. Sort of defeats the purpose just a tad, referring to the one mentioned in the thread obviously. Anyway thanks Rod it was an exercise worth doing, I can still change tools much faster and have more versatility with what type and size tools I use.


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