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  1. #16
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    72
    Posts
    3,102

    Default

    Until I've tried them out, I'm not making any comments on how good they will hold on a magnet chuck nor on any ideas of making more.
    Who knows, if they are any good, I might talk to one of my contacts in China about a run....
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  2. #17
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

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    Hi Joe,

    Certainly a very handy tool to have, ARC Euro in the UK do square and hex ones.
    Best Regards:
    Baron J.

  3. #18
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    72
    Posts
    3,102

    Default

    Hi Baron,
    that's where the idea came from or course: Stephenson blocks. John Stephenson came up with the design and licensed Arc Euro to have them made.
    That's why I called these ones 'Joe-Peter blocks' - tongue in cheek....
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  4. #19
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

    Default

    Well when you get them into production, I want one !
    Best Regards:
    Baron J.

  5. #20
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    72
    Posts
    3,102

    Default

    Prototypes finished and tested.
    The relatively narrow 'lands' on the duodecagon body are indeed a little too small to hold securely ACROSS a magnetic chuck. They hold fine straddling a few magnetic poles longways, but they only sit on a single pole across the chuck. However, due to every facet having two at right angles, they turn out to be very secure when blocked in o either side. The flux lines appear to join two blocks and the duodecagon very securely. I've ground a couple of trials without problems. Photos of some 'proper' test pieces to follow. Holding the collet blocks in a milling vice will make this rock solid for milling I think.
    We attempted to just machine the 16 deg included angle for the collet taper, but the contact lines remained too narrow for our liking. So I ended up grinding them. I used a tiny but very true running 5mm diameter CBN point I have in my 50k rpm air pencil mounted in the toolpost and it worked extremely well.
    Blueing the collet contact showed almost the entire taper is contacting.
    I'm very happy with the result. But they should be made from harder material or case hardened. This steel marks too easily as it turn out.
    IMG_20170711_012404 (Large).jpg IMG_20170711_012507 (Large).jpg IMG_20170711_012554 (Large).jpg IMG_20170711_012724 (Large).jpg
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  6. #21
    Join Date
    Mar 2014
    Location
    South of Adelaide
    Posts
    1,225

  7. #22
    Join Date
    Dec 2007
    Location
    Melbourne
    Posts
    1,628

    Default

    Who wrote the description?

    Unique Joe Collet ER40 Block with Ball bear Nut--Patent Pending---
    It is our patent pending products now .
    It can have many change .
    So that you can used better ER40 collet set for many different working .

    …..Live a Quiet Life & Work with your Hands

  8. #23
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

    Default

    Hi Joe,

    By gum that was quick !
    Best Regards:
    Baron J.

  9. #24
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    71
    Posts
    5,942

    Default

    Cheeky blighters, Patent Pending my butt, sees it on here sends a copy to his mates over there and hey presto.
    Be nice to find out when the "Patent" was "registered"????
    Kryn
    To grow old is mandatory, growing up is optional.

  10. #25
    Join Date
    Aug 2010
    Location
    Near Bendigo, Victoria, AUS
    Age
    72
    Posts
    3,102

    Default

    The real story is that I applied for a development patent. I then contacted my acquaintance Felix Wu and asked him if he was interested in collaborating with me - without telling him any datails. I asked him to check the interest of his acquainted and trusted manufacturers in China, and to machining capabilities.
    I then sent him a detailed drawing for an ER40 version to get a quote.
    We negotiated a licence fee and a retail price range.
    The first samples of 5 units arrived yesterday in Melbourne.
    In extensive correspondence with me, he ordered an initial production run of 500 units to be made and ordered 500 matching ball bearing collet closing nuts.
    All at his expenses.
    So in a few weeks (when I'm back in Australia), these collect block will be exclusively available from MagPro in Melbourne.

    So no, nothing is wrong, stolen or cheeky.

    Just to explain my previous silence on the topic, I was advised not to publicise any further details until all the documentation was finalized - which happened today.
    So far, MagPro and Felix Wu is respected and reliable business and person.
    Sorry I had to leave you in the dark into now.

    Sent from my InFocus M808 using Tapatalk
    Cheers, Joe
    retired - less energy, more time to contemplate projects and more shed time....

  11. #26
    Join Date
    Jan 2011
    Location
    Far West Wimmera
    Age
    63
    Posts
    4,049

    Default

    Sorry I had to leave you in the dark into now.
    Ha ha, you're forgiven.

    Great stuff Joe. Whatever happened to being retired? I wondered and hoped you were behind this. It just seemed a bit too coincidental and quick to be otherwise.

    Dean

  12. #27
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

    Default

    Hi Joe,

    Thanks for the explanation ! I guessed as much Could do with the grammar sorting on the listing though.

    Now when do I get mine ?
    Best Regards:
    Baron J.

  13. #28
    Join Date
    Apr 2013
    Location
    Toowoomba Qld
    Posts
    401

    Default

    Please for the love of god put the collet in the collet nut properly then take your photos again on the Ebay listing

    You / Magpro may also want to note in the listing that the collet is not included (unless you are including one) as pictures make up part of the description and may end up with disputes or bad feedback.

    Cheers
    Wayne

  14. #29
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    71
    Posts
    5,942

    Default

    Thanks for the explanation Joe, and my apologies to MagPro. Seemed a bit strange that it ran the same name as you called them.
    Glad to see they're in production.
    Kryn
    To grow old is mandatory, growing up is optional.

  15. #30
    Join Date
    Jun 2011
    Location
    Australia east coast
    Age
    71
    Posts
    2,713

    Default

    Quote Originally Posted by jhovel View Post
    The real story is that I applied for a development patent.
    Not trying to take anything away from you Joe, but just how can they issue a patent of any type for what is an obvious variant of a well established item?

    Good luck to you but I can't see that it's valid. I've seen a lot of bogus stuff claimed in software patents so I'm a bit sensitive about this sort of thing.

    PDW

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