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Type: Posts; User: Michael G

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  1. Replies
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    Interesting - perhaps a urethane based adhesive...

    Interesting - perhaps a urethane based adhesive or talk to people who maintain roads and see what they use.
    Are there any keying features into the recess to limit sideways forces on the ring?
    ...
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    Your mill (like mine) takes what are called 'milk...

    Your mill (like mine) takes what are called 'milk bottle' fuses. They are not easy to come by, so I would suggest working out what sizes you need and contacting a local electrical wholesaler to get...
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    Nice looking machine. The only thing wrong is...

    Nice looking machine. The only thing wrong is that you can not sing the 'Maho Man' song
    https://youtu.be/xa5M19pck5E?t=104

    Michael
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    It depends on the machine, how it has been...

    It depends on the machine, how it has been designed and the wear present - we had a lathe at work that required ISO 10. With the machines that members typically run here, 68 is a nice GP oil weight. ...
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    Ash, is there a simple/ cheap way of testing...

    Ash, is there a simple/ cheap way of testing concentration?
    I should probably get a test plan set up for the grinder at work.

    Michael
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    Just checked a couple and they are all measuring...

    Just checked a couple and they are all measuring 31.75 (that is, the imperial 1-1/4") or a few thou bigger. If your arbor is definately 32, I guess a smidge could be removed from the cutter bore to...
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    For a 10mm end mill I would not be going faster...

    For a 10mm end mill I would not be going faster than 900rpm. For a 12mm mill, 750rpm. If you are going at 1230 you are likely to overheat the cutter and blunt it.

    Michael
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    The goods

    So here is what I've got -
    The cold saw blade (at least from the hole pattern that's what I think it is) -
    385151
    Clockwise from the inserted cutter bottom left (diameter x thickness)-
    110x26.7...
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    Yes Michael

    Yes

    Michael
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    Does anyone run...

    Does any one run a coldsaw that would take a 9" blade, or a (horizontal) milling machine with a 1 1/4" arbor.
    I have both blade and an assortment of cutters with that bore that arrived in a box of...
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    Kryn, The wheel should have a maximum rpm on it....

    Kryn, The wheel should have a maximum rpm on it. Take that with your motor speed and you will be able to work out your pulley ratio (=wheel speed/motor speed).

    Flat belts are nice but expensive...
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    The surface roughness/ appearance will be...

    The surface roughness/ appearance will be different (machined surfaces should show as machined while die cast will be a slightly matt surface - a bit like 2000 grit wet and dry). Die castings should...
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    A photo of an existing gear might help - some...

    A photo of an existing gear might help - some people have spares floating around and they can be adapted, provided that there is not a unique hub or something.

    Michael
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    Likewise. No newspaper harmed in this workshop....

    Likewise. No newspaper harmed in this workshop.
    I've made up a tray that fits under the lathe bed and every so often I take it out and dump the swarf in the bin (especially when about to do small...
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    I think I would turn the outside and drill the...

    I think I would turn the outside and drill the bore. Then, make up a (sacraficial) tapered seating block & a plug for the ID (perhaps from aluminium?). Fit those and do the slits last of all.
    As...
  16. May help Lathe Spindle Nose and Backplate...

    May help
    Lathe Spindle Nose and Backplate Fittings

    Michael
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    One of the projects currently on the go is to...

    One of the projects currently on the go is to redesign a power tool with a brushed motor to go brushless. The main thing that the brushless motor has going for it is the higher efficiency. Below are...
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    That's some good gear there and I would see it as...

    That's some good gear there and I would see it as desirable kit that is worth selling - unfortunately this forum is mainly based in Australia, so any valuation that we could give would be meaningless...
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    Corrosion protection question

    A work problem that members may have suggestions for -

    We laser cut small coupons from steel sheet, linish the edges to remove the oxide and the grind top and bottom to size them. However, the...
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    The important thing is not to be heavy handed; I...

    The important thing is not to be heavy handed; I wind down slowly while jiggling the shim back and forth. As soon as I feel some grab I stop. I must admit that in the past I have occasionally...
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    Closing the loop

    So the clutch was something like but not close to the sketch above, but works
    385056
    The shaft I replaced with a 1/2" round one and then put 3 flats on it (so not to offend Kryn with a hex)
    385055...
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    So I started a thread on TIG welding galvanised...

    So I started a thread on TIG welding galvanised steel, based on this -



    And you have responded with a comment about silicon bronze MIG welding brazing



    Why is this relevant? I don't mind...
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    How about using the tip of a dove tail cutter to...

    How about using the tip of a dove tail cutter to do the nail slot?

    Michael
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    Personally, I use a bit of 0.5mm shim. Michael

    Personally, I use a bit of 0.5mm shim.

    Michael
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    Here is a couple of corner welds on 1mm galv...

    Here is a couple of corner welds on 1mm galv steel. The only prep was to wire brush the worst of the white stuff away from the weld area.
    This using my usual settings
    385037
    This is with the same...
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    Welding galv/ zinc plate steel

    First of all, I try not to. I think the stuff is horrible and prefer to not have it in my shed - however, sometimes you must (friend wants a repair; all there is in the hardware shop; other half...
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    I bought Makita because when I worked at...

    I bought Makita because when I worked at Holden's, they used them on the assembly line. I figure if it is good enough for buidling cars with...
    These days I continue with Makita because of the range...
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    No, just that the letter (or number) is not a...

    No, just that the letter (or number) is not a uniform distance from the edge of the stamp. If that is the case, even if you had a gadget like the ones you have pictured, the stamping will not be...
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    Kryn, one thing you need to check is that the...

    Kryn, one thing you need to check is that the stamps all stamp at the 'same height'. I've heard stories that some of the cheaper sets don't always line up.

    Michael
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    No, it's on the left. The vertical head stows on...

    No, it's on the left. The vertical head stows on the right of the machine when being used as a horizontal, so would obscure sight.

    Michael
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    I used the supplied bracket, but shortened it and...

    I used the supplied bracket, but shortened it and then made up a curved interface plate (my mill is a bit more shapely than Dave's). Key thing is that the pivot bolts need to be vertical (or near it)...
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    Can you fold up some sheet metal into say a...

    Can you fold up some sheet metal into say a hexagonal or octagonal shape (or even square if you want to be boring...). Join two halves with a strap across the joint and some tapped screws or similar...
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    I think you would be better off with a piece of...

    I think you would be better off with a piece of metal pipe or tube. I would not like to use PVC in case it started to soften and move a bit.

    Michael
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    I have one from these guys and it works alright -...

    I have one from these guys and it works alright -
    Magnetic welding clamps, Mag-Mate Magswitch equivalent products Australia, magnetic clamps and workholders, magnetic clamps for Welding & fixing,...
  35. Replies
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    That's the problem - if I worked on the full...

    That's the problem - if I worked on the full range of equipment available then I could have anywhere from a table 150mm wide to 400 or perhaps even 600mm. At least doing things this way gives me a...
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    Mill table width information needed

    I'm trying to design up a device* to fit on a mill table. My mill is larger than most home mills with a table width of 235mm, so I'm not sure it is the best thing to base a design around. I would...
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    I managed to pick up a (new) small bench grinder...

    I managed to pick up a (new) small bench grinder from Bunnings the other day for all of $35. At that price, salvaging an old motor from something becomes marginal.

    Michael
  38. Thread: Non replies

    by Michael G
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    Yes. We can't demand a reaction from others,...

    Yes.

    We can't demand a reaction from others, but I must admit that when I post something and don't get much response I do wonder whether my post subjects not what others want to read these days....
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    For those who have contacted me off line with...

    For those who have contacted me off line with suggestions for learning how to use it, I have a larger one (although without a clutch), so know how to use them - my main issue is getting it to a...
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    This is it here - a sweet little unit that would...

    This is it here - a sweet little unit that would have done nicely for smaller taps.
    384834
    It's an 1MT shank but that black knurled knob is thick enough that a 1MT to 2MT socket will not slide...
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    The main reason that I would not use a parting...

    The main reason that I would not use a parting tool for that sort of thing is that being a thin blade it flexes, so you won't get the geometric accuracy that you probably want. While some parting...
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    One thing I have heard done is using a mirror and...

    One thing I have heard done is using a mirror and bouncing the beam off that onto a mark/ target on the wall. You would have to make sure your mirror was parallel with the column but by bouncing that...
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    Anyone have a Crown tapping head?

    I bought a tapping head from ebay last week and it has arrived but is non-functional - it has a bit missing (the cam to drive the tap when tapping), feels like it was lubricated with something with a...
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    My MSDS says Naptha plus some EP additives... ...

    My MSDS says Naptha plus some EP additives...

    384765

    Michael
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    Getting back to some basic maths, for a D size...

    Getting back to some basic maths, for a D size cylinder, Bunnings charge me $200 (refundable) deposit plus $99 for the fill.
    If I'm really (and I mean really) lucky I could get maybe 2% return on...
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    Not a lot and subsequently quite a bit. Over...

    Not a lot and subsequently quite a bit.

    Over heating the steel should not hurt it, but you are wasting time and energy doing so.

    However, one of the important things with heat treatment of...
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    Just to finish off - the vice in use. I'm taking...

    Just to finish off - the vice in use. I'm taking a 1mm DoC on another casting, roughly 170mm square. Did three passes and there is no step between them, so no movement.
    384728

    In the meantime,...
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    Before applying heat, I would try straightening...

    Before applying heat, I would try straightening it in a hydraulic press. 15 thou is not an enormous amount and should come out.

    Michael
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    I was wondering whether some lengths of pipe/ bar...

    I was wondering whether some lengths of pipe/ bar stock may be better than 'slippery stuff'. If the saddle is even slightly weighty, getting it to move could be a challenge.

    Michael
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    I had thought (could be wrong) that Bunnings also...

    I had thought (could be wrong) that Bunnings also did E size. I prefer Bunnings myself for gas as they are open 7 days and I always seem to run out of gas on a Sunday...

    Michael
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