timgunn1962

  • Male
  • from Lancashire
  • Member since May 17th 2015
  • Last Activity:
Posts
81
Likes Received
64
Points
474
Profile Hits
266
  • timgunn1962

    Post
    Ferguson gives 700 degC for Copper/Brass "An easy combination to make, it is malleable and slightly tougher than Copper/gilding metal; the colour contrast is strong."
  • timgunn1962

    Has marked the post RE: Diffusion bonded steel. by mikehill, on topic Diffusion bonded steel. as helpful.
    Most helpful post
    No idea but it's a wicked website ... I could spend tens of thousands ^^ Japanese scissors .. whittling knives and axes ..
  • timgunn1962

    Replied to the thread Inverters and grinding dust.
    Post
    As Mike says, using a reasonable-sized enclosure generally deals with the cooling. Steel enclosures shed heat much better than GRP.

    There are formulae for calculating how much heat dissipation enclosures will provide. In many cases, the enclosure…
  • timgunn1962

    Replied to the thread Inverters and grinding dust.
    Post
    Enclose it to at least IP55.

    Grinding dust WILL kill it INSTANTLY.

    You are not dealing with a "normal" dust situation.

    Most inverters have cooling fans which will massively increase the airflow past the power electronics in order to keep them cool.…
  • timgunn1962

    Post
    Hamilton only seem to list high-pressure Propane regulators with a 0.5 bar minimum pressure. These are horrible.

    It's a shame because I've absolutely no problem with Hamilton otherwise. Everything I've had from them has been exactly as described and…
  • timgunn1962

    Post
    I'm not 100% certain, but I think the clip-on regulators are all low-pressure: 37 mbar for Propane and 28 mbar for Butane. They are intended for barbeques, gas heaters and the like.

    https://www.calor.co.uk/shop/calor-essentials.html?cat=31t


    While it…
  • timgunn1962

    Post
    That's a strange cylinder fitting to me. As far as I can tell, the Calor UK 34 kg cylinder size is only available in Northern Ireland, so I presume it's an Irish standard size.

    The thread on the cylinder is male, rather than the UK-standard female…
  • timgunn1962

    Replied to the thread motor spindle.
    Post
    There are several ways of getting the pulley (or whatever) and motor spindle joined securely enough to transmit the required torque. In the majority of cases, this is done with a key, but there are alternatives.

    Quite a lot of Aluminium pulleys and…
  • timgunn1962

    Replied to the thread drive wheel.
    Post
    It's a gear puller or bearing puller. There are different types and sizes. Good ones are not cheap, but you are not likely to need a good one for removing a drive wheel. A cheapie of suitable size should be fine.
  • timgunn1962

    Post
    (Quote from Imagedude)

    I know very little about Mokume, never having made any. I've also not looked properly at a phase diagram in the last 3 decades, so please tell me if I'm being dense.

    I'd assume that in the Shibuichi at 850 DegC (somewhat above the…
  • timgunn1962

    Post
    Ferguson gives a bond temperature of 650 degC for Fine Silver/Shibuishi and notes "Must be hammered at black heat; shibuishi is very tough and work hardens very quickly so it must be annealed frequently. Because of the disparate hardness's, there is…