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Type: Posts; User: Michael G

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  1. Replies
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    G'day Bob If you want to send the disc and hub...

    G'day Bob
    If you want to send the disc and hub for a holiday, my lathe can do 12"

    Michael
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    CLAIMED I'm in

    I'm in
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    CLAIMED I'm in

    I'm in
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    CLAIMED I'm in

    I'm in
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    TASMANIA Wood carving chisels

    I have several Pfeil spoon type wood carving chisels that realistically I will never use (bought included in a job lot)
    Official catalogue numbers would be 5A-5, 5A-8, 5A-12, 8A-7 and 8A-10
    428801...
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    I think we typically allow 1 to 2%. It's not much...

    I think we typically allow 1 to 2%. It's not much - just enough to annoy 'cause things don't fit properly. That gear looks like it has contracted slightly and it is a push fit on a knurled ring, so...
  7. Pete, Aaron, that's an old photo. This is the...

    Pete, Aaron, that's an old photo. This is the previous thread about the vice https://www.woodworkforums.com/showthread.php?t=193678, where Bob made us envious with his $3600 vice.
    Post 19 shows Bob's...
  8. Books have been written on that. However, in...

    Books have been written on that. However, in simple terms a mill uses a rotary cutter to remove material (typically metal) from a work piece. It has a table that can be positioned accurately that the...
  9. Thread: Mit-a-mit

    by Michael G
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    Looking at post 78, it looks brassy to me but...

    Looking at post 78, it looks brassy to me but that could be a trick of the light. The bush looks like steel - which would be good because you will tighten up on that and pivot on the outside surface....
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    Best I can find is - 357950 Michael

    Best I can find is -
    357950

    Michael
  11. Thread: Mit-a-mit

    by Michael G
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    My first preference would be solid brass. A ring...

    My first preference would be solid brass. A ring 0.5mm thick may work in theory but I would be concerned that at that thickness it could easily get knocked, folded or dislodged. Securing it may be...
  12. Thread: Mit-a-mit

    by Michael G
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    It is possible you have some wear on the shaft,...

    It is possible you have some wear on the shaft, so sizing the gear to the 'as new' size may not produce what you expect. I find that if you can ream a hole to 0.001" to 0.002" over the size of your...
  13. Stainless is available in a variety of finishes....

    Stainless is available in a variety of finishes. If you go for the highly polished finish then it will show the scratches, where as the mill finish (?) still scratches but does not show it so much....
  14. Thread: Mit-a-mit

    by Michael G
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    Noting wrong with that if you haven't got means....

    Noting wrong with that if you haven't got means. It will get the job done.
    The original piece was brass - plain bearings work better when there is a soft- hard combination - and you have...
  15. Thread: Mit-a-mit

    by Michael G
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    I would suggest that the ratchet gear is taper...

    I would suggest that the ratchet gear is taper bored and relies on the 3 ball handle to push it on (bit like a boat prop, although they also have a key) Once you work out the taper though it should...
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    And the silly thing is in a couple of years you...

    And the silly thing is in a couple of years you are just as likely to look at it and tell yourself that it is a bit rough and needs to be redone...
    This learning thing never stops.

    Michael
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    I must admit I always forget turning between...

    I must admit I always forget turning between centres. One day I'll make up the bush I need to do it but it's something like an extended B&S 9 (or is it 10) on the outside with a MT2 on the inside, so...
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    The police use a conversion of 33cc = 250W when...

    The police use a conversion of 33cc = 250W when assessing whether your petrol assisted bicycle is a little too powerful - that might be a good place to start with power.

    Michael
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    No, but possibly the only one who would do and...

    No, but possibly the only one who would do and undo multiple hex socket screws when there were other ways. :doh:

    Michael
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    How about something simpler - 357526 The CNC...

    How about something simpler -
    357526
    The CNC version is nice but looks a bit complicated to me (I guess you could slit the end of this if you wanted the pinch action or even put in cotters)
    ...
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    107 times. Hmm. That won't get tiring at all...

    107 times. Hmm. That won't get tiring at all really.

    In the meantime, the alignment issue - I keep thinking of that depth of cut (0.65mm) and really there is not much room for error.
    Several...
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    Next question Bob - have you the brass for the...

    Next question Bob - have you the brass for the job?

    Michael
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    I did put a post up suggesting that the handles...

    I did put a post up suggesting that the handles were a zinc alloy, but the video definitely says Al and it looks as if it is (although the stills are not as clear). The dies look like Al too.
    Al...
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    In theory yes, but in practice because of the...

    In theory yes, but in practice because of the application it is unlikely to be satisfactory, simply because of the cumulative error that is possible (107 holes with the pitch out by say 1% means that...
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    According to that link, they do those electrodes...

    According to that link, they do those electrodes in a 2mm size.
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    I use these in the 2.5 and they work alright - ...

    I use these in the 2.5 and they work alright -
    http://www.welding.com.au/filler-metals/view/austarc12p

    Michael
  27. Thread: DRO Advice

    by Michael G
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    Quick photos between shopping duties - This...

    Quick photos between shopping duties -
    This scale is a magnetic strip type but the thing to note is the lack of symmetry due to the (enforced) position of the reader head and even then the bracket...
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    Personally I'm waiting for Mark to regrind his...

    Personally I'm waiting for Mark to regrind his CVA. Once he knows how it is done he'll then be able to do mine! :U

    Michael
  29. Thread: DRO Advice

    by Michael G
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    Agree. The brackets that came with mine are also...

    Agree. The brackets that came with mine are also sitting in the recycle pile. Although it is used as a selling point in reality it's a clunky way to do things. The red and blue plastic things need to...
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    True. For a one off I'd probably risk it (maybe...

    True. For a one off I'd probably risk it (maybe smaller holes, larger PCD to get some space). For a repeat job I'd probably do a third row - actually, if I had a third row in there I'd probably set...
  31. I think the point that Grahame was trying to make...

    I think the point that Grahame was trying to make was that the fillet was too large. 3mm may well be too hard to do (at least for the moment), but you should be aiming for a filllet smaller than the...
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    I was only using 54 as an upper bound on the...

    I was only using 54 as an upper bound on the space/ length needed


    It works - it's just not elegant.
    357189
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    G'day Pete Bob's existing plate is 110mm...

    G'day Pete
    Bob's existing plate is 110mm diameter and it does not look like it could get much bigger in diameter. To avoid having to change the indexing on his head too much, would it be possible to...
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    I think the last think I did for you was spend...

    I think the last think I did for you was spend some of your cash on a vice. I hardly think that spending someone else's money counts as a favour :~.

    Michael
    (Yes, there may have a been a few...
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    Import some termites - wooden posts around here...

    Import some termites - wooden posts around here are hard pressed to last that long.

    Michael
  36. Thread: QCTP brand ?

    by Michael G
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    Several members have made their own - I think...

    Several members have made their own - I think Dave J holds the record for making up around 50? When I was looking at QCTP, one of the attractions of the Aloris type was the simplicity of making up...
  37. Are you sure what you are seeing is not just...

    Are you sure what you are seeing is not just straight sag? From the pictures it looks like one end is hanging without any support and that will tend to distort things. You really need to have it on a...
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    The design of these gears is that they are...

    The design of these gears is that they are pressed onto a bearing outer - so the gear itself is under (circumferential) tension when installed. Chances are that is why the original one broke. It...
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    I'm sorry to say that I can't help you there Bob...

    I'm sorry to say that I can't help you there Bob as my smallest cutter is M0.5.
    This article explains how to make a form cutter -
    http://www.metalwebnews.com/howto/gear/gear1.html
    Which I think...
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    It will decrease your hopper volume a bit, but is...

    It will decrease your hopper volume a bit, but is it worth partially covering the auger so that while it will still be full there will not be so much pressure on it from the mulch on top?

    Michael
  41. Thread: Mit-a-mit

    by Michael G
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    Yes. But the photo has some optical distortion in...

    Yes. But the photo has some optical distortion in it. I went back and scaled off the photo and came up with a maximum gear size of 22mm.

    I tried a few different numbers but eventually I threw it...
  42. I sent an email to my Hercus contact (who is on...

    I sent an email to my Hercus contact (who is on holidays at the moment). His comment was

    I would be using a oil like tecoma 32 (hydraulic oil) or tecoma 68 general lube oil used on most...
  43. Thread: Mit-a-mit

    by Michael G
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    Nah - of the collection of bits there the...

    Nah - of the collection of bits there the trickiest part to make is the 3 ball handle. A gear with an eccentric like that is not difficult - it just requires a 'little bit' of offset in a 4 jaw...
  44. You could well find that once a bit of light...

    You could well find that once a bit of light patina develops you won't even be able to see them as they will blend in.
    Regardless, nice work.

    Michael
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    The wheel speeds are designed to allow you to...

    The wheel speeds are designed to allow you to adjust when the wheel diameter is reduced and still allow you to grind near optimum speed. A 5" wheel is meant to be run at 3900rpm (the ones I have have...
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    http://www.ebay.co.uk/itm/Jones-Shipman-Cone-Centr...

    http://www.ebay.co.uk/itm/Jones-Shipman-Cone-Centre-Lapping-Machine-/252049614002?hash=item3aaf53e4b2
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    Jones and Shipman have made them too, so sounds...

    Jones and Shipman have made them too, so sounds like they are used in Aus, Europe and the UK (but not in ...).

    Michael
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    Yeah - I thought that when I first started making...

    Yeah - I thought that when I first started making one too.:no:
    These may be of interest
    356408 356409

    (pinched off an ebay ad some time ago I think)

    Michael
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    A slight diversion from the main game...

    As well as the drip oilers on the spindle there are other oil points on the J&S so another oil can is required. I did intend to buy a new can for this purpose but while wandering through a...
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    As an alternative, how about using a solid rod...

    As an alternative, how about using a solid rod (clamp the fence to the rod) and on the end have a threaded section 200mm long say that can provide the fine adjustment. Even with a 2mm pitch,...
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