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Type: Posts; User: Michael G

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  1. Replies
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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
  2. Replies
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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,...
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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
  6. 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
  13. Replies
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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...
  14. Replies
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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,...
  16. Replies
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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
  17. Replies
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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
  18. Replies
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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
  19. Thread: spin indexer

    by Michael G
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    427

    Pete F also did one - ...

    Pete F also did one -
    https://metalworkforums.com/f65/t188947-tickling-spindexer

    Nice work though.

    Michael
  20. Replies
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    Not what you asked for, but I have a Tree boring...

    Not what you asked for, but I have a Tree boring head that is capable of boring a tapered hole. If you just need one or two done as prototypes I could help that way.

    Michael
  21. Replies
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    On that basis, can you pack the brass valve bit...

    On that basis, can you pack the brass valve bit in dry ice?

    Michael
  22. Replies
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    One thing that you will find (as I did when I was...

    One thing that you will find (as I did when I was looking some time ago) is that most of the horizontal machines out there are larger than ideal for a home workshop. Particularly the smaller ones,...
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    Mill tool storage

    I was asked the other day how to store mill tooling in a drawer. I store mine vertically -
    384630
    but the question was put to me, so using a supermarket chopping board (yellow I think is uncooked...
  24. Replies
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    I think that might just be a fold of paper towel...

    I think that might just be a fold of paper towel covering the end...

    Michael
  25. Replies
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    Personally I prefer to use HSS for threading,...

    Personally I prefer to use HSS for threading, just because the rpm's needed are less and so the feed is correspondingly slower - more time to pull out at the end of the pass. I used to sharpen...
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    I made up a 2D version some time back. Material...

    I made up a 2D version some time back. Material can clamp to the inside or the outside; Al to avoid spatter issues
    384567
    It gets used occasionally but for the most part if I'm making a square...
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    I agree with Ash; I would have tried SS at around...

    I agree with Ash; I would have tried SS at around half the MS speed. Lots of coolant/ oil to avoid heating things up and try to get the feed up to avoid rubbing/ work hardening.

    Good luck.
    ...
  28. Replies
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    In theory yes, but at 7kg is going to be mighty...

    In theory yes, but at 7kg is going to be mighty heavy. I would also check what size it is. Most vertical slides for lathes are not all that wide, so it may not fit.
    You might be better mounting an...
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    Context! The section heading was for Caravanning....

    Context! The section heading was for Caravanning. To run lights in a van would only need 10A - only when running high draw items (toasters? electric kettles?) would more than 10A be needed. I suspect...
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    From what Tommy is saying, the gears are 18DP, so...

    From what Tommy is saying, the gears are 18DP, so a 20DP cutter will not produce the correct tooth shape. It will be a no. 2, as they do 54 to 135 teeth.

    You are correct that a 40:1...
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    A dividing head is not 100% interchangable with a...

    A dividing head is not 100% interchangable with a rotary table -






    You won't get 127T from a semi-universal dividing head or rotary table as it is one of those awkward prime numbers that...
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    I had thought I said "Cutting edges being the...

    I had thought I said
    "Cutting edges being the same length are not all there is to an accurate hole. ... If drilling in a pilot hole, the hole does not know exactly where the point of the drill is...
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    A rotary table and a dividing head are not quite...

    A rotary table and a dividing head are not quite the same thing. The R/T has lower gearing so that you can mill circular arcs. A dividing head on the other hand is made for indexing, typically being...
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    Hmm. Not sure that I can accept those claims...

    Hmm. Not sure that I can accept those claims without some further clarification. Randomly ordered thoughts below



    When drilling in metal, I would rarely drill anything to final size without...
  35. Thread: J6 is a JT6?

    by Michael G
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    That's a pretty good assumption. The European...

    That's a pretty good assumption. The European equivalent taper is a 'B' series

    Michael
  36. I've been using one of those 'portable bandsaws'...

    I've been using one of those 'portable bandsaws' (not that one but similar) for the last 10 to 15 years. It will depend on initial build quality but mine has lasted.

    Michael
  37. Replies
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    You could take it to a motor rewinder, get them...

    You could take it to a motor rewinder, get them to fix it...

    Michael
  38. Replies
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    Sometimes grasshopper, that happens... 3...

    Sometimes grasshopper, that happens...



    3 points define a plane. With 4 it may rock, although if you grind them down after pushing in they should not - but if you are going to do that, why...
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    Not even sure about that - if the balls were in...

    Not even sure about that - if the balls were in contact with a surface plate so a shaft was truly parallel then when you rotated the shaft, the block would want to roll across the plate. If the balls...
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    Not sure this proves anything or not - I have a...

    Not sure this proves anything or not -
    I have a block of steel between the jaws and clamped to that is a piece of flat. Adjacent to the other jaw is a DI, and the tip is contacting the edge of the...
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    8mm is a pretty solid wall for that diameter...

    8mm is a pretty solid wall for that diameter pipe. You might be better off cutting rings out of some thick plate with hole saws.

    Michael
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    I also agree that sharp tools are very important...

    I also agree that sharp tools are very important and so sharpening information is essential, but the number of members who could speak authoritatively on sharpening is small. The rest of us (me...
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    I have some scraps that are around that. If Ralph...

    I have some scraps that are around that. If Ralph can't help, let me know.

    Michael
  44. Replies
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    I can't recall if a 127t gear would fit in a...

    I can't recall if a 127t gear would fit in a Hercus. I know there is at least one lathe around that size that uses a 63/60 combination because of the fit issue. If you have the gear details I could...
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    It's a nice thought guys, but if you look at the...

    It's a nice thought guys, but if you look at the sort of thing being posted at the moment, I suspect that a dedicated grinding (or even toolroom) section would not be a well used sub-forum. While we...
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    Greg, if you go to the advanced search and then...

    Greg, if you go to the advanced search and then hit the tab marked 'search single content type', it will pick out individual posts that mention the search string.

    Michael
  47. Replies
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    More accurately positioned small holes

    I have a sensitive drilling attachment (SDA) that I bought mainly for my drill press. For those not familiar with them, the smaller chuck is on a spring loaded shaft, so instead of using the quill on...
  48. The OP is in the UK though. 3/8" BSF may be more...

    The OP is in the UK though. 3/8" BSF may be more easily borrowed/ obtained.

    Michael
  49. Replies
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    Yes. They work quite nicely. I think Ray G also...

    Yes. They work quite nicely. I think Ray G also has them fitted in this shed. Mine were an ebay purchase; from memory AEG brand.

    Michael
  50. You could either buy 3/8" rod and thread it 3/8...

    You could either buy 3/8" rod and thread it 3/8 as called up in the drawing or buy 10mm rod and thread it for M10. It does not matter which provided you have matching nuts for it - that may be a...
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