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26th Mar 2019, 11:59 AM #1New Member
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Draw bar for HM-32 Hafco Mill - Metal work Noob
Full disclaimer - I'm normally a wood tinkerer!
Recently become the owner of a Hafco HM-32 Mill, so I shot out and got myself a ER32 collet chuck to get me started with a few projects that I have in mind.
Discovered that one of the quirks with the HM-32 mill is the 1/2" BSW draw bar. From what I have seen in my limited internet browsing, most tools seem to be for a 12mm thread draw bar.
Although I am tempted to grab myself a bit of mild steel rod and fabracobble a bodgey 12mm draw bar, was wondering if others had come across a similar issue and what their solution was?
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26th Mar 2019, 12:09 PM #2Senior Member
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26th Mar 2019, 12:17 PM #3New Member
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I didn't even think to look for the draw bar thread when I bought the collet. Then when I checked the hafco site, they wanted $300 plus for a collet kit so I made the mistake of going onto Aliexpress.
Figured making a new one would be the simplest move as I no doubt will end up with both metric and imperial tools in the long run.
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26th Mar 2019, 12:41 PM #4
AliExpress is fine for tooling, as said just make one, or you can grab some M12 thread rod and double nut the top.
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26th Mar 2019, 12:44 PM #5New Member
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That's a great idea. Will get me started without having to spend time on making a new one for now.
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26th Mar 2019, 03:27 PM #6Member: Blue and white apron brigade
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26th Mar 2019, 04:33 PM #7Philomath in training
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26th Mar 2019, 04:36 PM #8
Just to add unless it's a super special at Hare and Forbes or you need it tomorrow sort of thing, buy through eBay, AliExpress, bangood, or other Australian smaller sellers like Aussie etc
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26th Mar 2019, 10:14 PM #9New Member
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Yeah, i had the same issue with my mill. Made a new draw bar as suggested. First was made from mild steel but it was a bit soft for my liking so made another of 4130 cromoly.
Cheers, Dom
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26th Mar 2019, 10:35 PM #10
Hi Maxxsinner, Guys,
That is exactly what I did for my MT2 ER32 collet chuck on the lathe. In this case a short length of M10 threaded rod and then made a brass nut to fit. The nut fits into the end of the spindle just so that it is centred properly when tightened.
16-03-2019-006.JPG
That horrible looking thing on the end is a cobbled together pin wrench, made from a pancake motor rotor. Its about 70 mm in diameter.Best Regards:
Baron J.
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5th Apr 2019, 01:57 PM #11Novice
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- Bundoora, Victoria
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I inherited a mill from my uncle who was a stickler for precision. Amongst the numerous drawbars were ones made with all thread and nuts. I was surprised he used these but I still am. They work well and don't see any need to replace them.
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