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Type: Posts; User: Michael G

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  1. Replies
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    Just before Christmas I hit the button and...

    Just before Christmas I hit the button and ordered some of the cups I mentioned above. They arrrived last week (played the covid shuffle in US post offices) and I tried them today on some Al.
    They...
  2. Just thinking out loud here Joe - The...

    Just thinking out loud here Joe -

    The impression on the vinyl is not deep, and the letters are solid.
    If you had access to a fret saw, could you put the table over on a slight angle (optional...
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    It varies depending on the view of the person...

    It varies depending on the view of the person stating it, but typically a VFD will manage a 3:1 or 4:1 speed ratio. Because of that you will still need some gears in the power train, as a lathe...
  4. That's not going to play nicely for CNC (or any...

    That's not going to play nicely for CNC (or any vertical milling really). There are sharp internal corners and the spacing between the letters is pretty small in some places. 10 degreee cutters are...
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    Any Al you cast would come out in an annealled...

    Any Al you cast would come out in an annealled state. Most of the alloy you buy has some heat treatment or cold work to get the strength, so while you could cast your own it is likely to be quite...
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    I use a Stihl SE61. If you use the crevice...

    I use a Stihl SE61. If you use the crevice nozzle, you can pull the big bits off so they don't block the hose. Any vacuum will block though if you jam it into a big pile of chips, so pick up things...
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    Are you able to make up a block that fits in the...

    Are you able to make up a block that fits in the rear sight dovetail, such that you can indicate off that?
    (Run the indicator up the side of the block so that when the block is vertical, the barrel...
  8. Thread: Bead Roller

    by Michael G
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    897

    My brake fingers are just thick MS. You would not...

    My brake fingers are just thick MS. You would not want them hardened as they could spall if you mis-treated them.

    Michael
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    try this 390342 Michael

    try this
    390342

    Michael
  10. Thread: Bead Roller

    by Michael G
    Replies
    43
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    897

    I made myself a small tool box a while back out...

    I made myself a small tool box a while back out of 0.7mm (stainless). Worked alright, but that was darn heavy even at that thickness.
    May be worth getting some pieces of various thicknesses...
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    I just make them... From what I was told,...

    I just make them...
    From what I was told, precious metal is cast or supplied as wire. These rolls are to reduce it down to a desired size. The grooves in the ends of the rolls allow the wire to be...
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    Rolling stand

    Over the last few months (almost a year) I've been doing a job for Bob (China). He managed to get hold of a pair of jewellery rolls; could I make up a frame for them?
    Today I managed to do the last...
  13. Thread: Bead Roller

    by Michael G
    Replies
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    897

    1.2 should be plenty thick enough. Your biggest...

    1.2 should be plenty thick enough. Your biggest problem will not be strength but sag (deflection) in the middle of that drawer.

    Michael
  14. Thread: Theme change

    by Michael G
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    539

    Yep, Yep and Yep. Michael

    Yep, Yep and Yep.

    Michael
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    From my understanding, the OP wanted something...

    From my understanding, the OP wanted something like in the top of the attached sketch -
    390320
    The second pair of parts is what I think is being considered at the moment (certainly easier to make...
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    From what I understand, yes. I think a pin in...

    From what I understand, yes.

    I think a pin in the rod and slot in the sleeve (direction he is now checking) will be more robust though.

    Michael
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    To do this, a universal dividing head would be...

    To do this, a universal dividing head would be used and have the chuck rotate 90 degrees as it travels along. It would be a nasty thing to do, especially in stainless because it is a narrow but deep...
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    Tecmen welding helmet

    I bought a job lot today which included a NIB Tecmen welding helmet - I haven't tried it, just looked in the box to check it was there.
    ...
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    That's not bad when you think about it. The...

    That's not bad when you think about it. The average 2.5mm electrode found in shops all over the place is recommended to run at around at say 60 to 80A (will depend on type, but that is usually the...
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    How about a toe clamp? Michael

    How about a toe clamp?

    Michael
  21. A CAD file (DXF would be preferable) but most can...

    A CAD file (DXF would be preferable) but most can work from a good paper drawing.



    Most cutting companies can supply material. You will pay a premium on it though.



    Laser, plasma, water...
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    I was thinking something like this - 390224 The...

    I was thinking something like this -
    390224
    The countersink would not mill the material out as such. I'd drill most of it out and use the countersink just to clean up. The wire would go in when the...
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    Nice job. Are we allowed to know what this is...

    Nice job. Are we allowed to know what this is for?

    Michael
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    I have a 60 degree included angle countersink...

    I have a 60 degree included angle countersink that is 19.5mm in diameter. I think you would want to pour into the base of the sinker rather than the top (potential to freeze off too quickly), so an...
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    The plaster needs to be well dried so that there...

    The plaster needs to be well dried so that there is no water to flash to steam. Probably some time in the kitchen oven would do it.

    What shape are the sinkers? It may be just as easy to machine a...
  26. Replies
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    It's basically the sand. For a fine finish you...

    It's basically the sand. For a fine finish you may even have to got to plaster (but well dried). Another alternative might be a split Al mould, similar to that used for blackpowder shot/ bullets.
    ...
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    We are trying to 'on-shore' some production at...

    We are trying to 'on-shore' some production at the moment. The biggest stumbling block seems to be some of our production staff, who see the level of automation we need to develop as 'too...
  28. Thread: Cq6230 lathe

    by Michael G
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    201

    looks like one of these -...

    looks like one of these -
    https://www.machineryhouse.com.au/L682
    These guys usually have parts if the machine is a stock item, so it may be worth asking.

    Michael
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    Agreed. 45/18 is 2.5, so that would make sense. ...

    Agreed. 45/18 is 2.5, so that would make sense.

    Michael
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    I haven't noticed a shortage, but I would guess...

    I haven't noticed a shortage, but I would guess that a lot of the cheaper steel (as sold in general hardware stores) probably comes from China these days. It would not surprise me if there are...
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    I have some spare felt (1/4" /6mm thick I think)....

    I have some spare felt (1/4" /6mm thick I think). Let me know if you need a bit. I might also have some drive screws if you don't need too many.



    It's good stuff. I painted my lathe with it...
  32. Something like this one gets down to 60rpm. The...

    Something like this one gets down to 60rpm. The low speed is useful for cutting threads (especially coarse ones) and larger diameter pieces. 125rpm is the nominal speed for HSS on a 70mm diameter...
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    I'd knock the sharp edge off. A quick wipe with...

    I'd knock the sharp edge off. A quick wipe with an angle grinder is probably all that is needed - just something to not cut you (or the material).

    Michael

    (PS - not tempted to take the width...
  34. - Belt drive or Gear quick change Drive (have...

    - Belt drive or Gear quick change Drive (have read that belt is best newbies incase you jam the work) I doubt you will jam the work more than once or twice. You soon learn not to.:U
    -quick change...
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    The protruding tongue is just so that you can...

    The protruding tongue is just so that you can slide it out (something to get a screwdriver under). All the spring is doing is holding the sector dividers against the dividng plate (so plate is...
  36. I used to use SupaGas for my argon, but while...

    I used to use SupaGas for my argon, but while potentially better per fill, I found that I did not use enough to make renting attractive over a deposit on a cylinder. (I generally use one to two D...
  37. The D is easier to handle. The downside is that...

    The D is easier to handle. The downside is that you may have to make more trips to the hardware store than you previously did...

    Michael
  38. Replies
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    I second Bob's implication here. If you can lower...

    I second Bob's implication here. If you can lower the discharge pressure, the air in the tank will last longer.

    Michael
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    I think the thing on the left is a centre of some...

    I think the thing on the left is a centre of some sort that would be used with a dividing head or similar - interesting minimalist design.
    The item on the right is another vice but that one looks to...
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    Yes, Waldown (drill press) vice. Here's some...

    Yes, Waldown (drill press) vice. Here's some inspiration from WA if you feel the need to repaint.

    https://metalworkforums.com/f65/t177465-waldown-vice/latest/post1705717#post1705717

    Michael
  41. It's a bit controversial - there are arguments...

    It's a bit controversial - there are arguments about it every so often, but here is some guidance


    A faster switching speed is usually regarded as better (so 1/20,000 is better than 1/5,000 of a...
  42. Thread: Hand saw art

    by Michael G
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    204

    What about a high build automotive primer, or...

    What about a high build automotive primer, or even just automotive filler?

    Michael
  43. Thread: lathe manual

    by Michael G
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    Worth adding too. You look to be missing the...

    Worth adding too. You look to be missing the switch gear that turns things on and off. Depending on your confidence with electrickery, you may be better getting a 3 phase motor and VFD - the...
  44. Thread: lathe manual

    by Michael G
    Replies
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    267

    G'day Joe It looks like you have your work cut...

    G'day Joe
    It looks like you have your work cut out for you there, but if nothing else you have your first project:C.

    From the limited reserch have done, that lathe is 36" between centres and 12"...
  45. Replies
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    Adam, I'll be the taker of last resort to save...

    Adam, I'll be the taker of last resort to save them from the scrap bin. I'll probably end up cutting and shutting them for other things so if someone can use them as drawers in the sizes they are...
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    I guess the short answer is that you can mount...

    I guess the short answer is that you can mount it anywhere you like. However, as the idea is to stop the chuck quickly, ideally it will be on the spindle. Any further along the power train and there...
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    One thing that I would like to try one day is one...

    One thing that I would like to try one day is one of those pyrex cups that Jody at weldingtipsandtricks.com uses. They certainly seem to throw more light around, so that may also be a plus for aging...
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    I bought a cheater lens once but was not...

    I bought a cheater lens once but was not impressed with it. The field of view was not uniformly clear. For around the same price a cheap set of reading glasses does the job.

    Michael
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    I would like to adopt another vice

    I run a 4" vertex anglock vice on my mill, but clamping that to a sine or angle plate is a pain. Ausee do a 80mm version of an anglock vice but are out of stock at the moment and don't know when they...
  50. As it is a lathe that H&F have stocked, you might...

    As it is a lathe that H&F have stocked, you might get lucky and they will have parts.

    I had something similar a lathe or so agoand got a local gear shop to make one. Effectively a gear on the end...
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