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  • Peter S's Avatar
    12-06-2018, 11:22 PM
    There are various grades of UHMW, different molecular weights I believe. For example, the best UHMW we use is blue in colour, but I can't recall its...
    17 replies | 1519 view(s)
  • Peter S's Avatar
    12-06-2018, 04:40 PM
    Peter S replied to a thread JIS Threads in General
    Derek, What is the diameter of the good screw you have? There is a difference in diameter between M3 and 5 BA which should be apparent.
    18 replies | 781 view(s)
  • Peter S's Avatar
    12-06-2018, 02:38 AM
    Peter S replied to a thread JIS Threads in General
    Derek, Have you got any of the screws or do you only have the female thread? If the former, tell us the screw diameter and its TPI or pitch using...
    18 replies | 781 view(s)
  • Peter S's Avatar
    11-09-2018, 09:11 PM
    I just noticed this type being advertised, 2 or 3 MT with 65mm diameter chuck mounted on M14 thread. Quite a lot of overhang, probably intended for...
    31 replies | 2306 view(s)
  • Peter S's Avatar
    11-08-2018, 05:20 PM
    I would try warming the housing, with propane or hot water, expansion is usually recommended for aluminium.
    10 replies | 693 view(s)
  • Peter S's Avatar
    11-06-2018, 06:45 PM
    Peter S replied to a thread Liberty ship steam engine in General
    RB211, I have a drawing of the Liberty crankshaft, it is a copy of the original and was printed in Live Steam magazine in May 1981. It was part 9...
    31 replies | 2333 view(s)
  • Peter S's Avatar
    11-04-2018, 11:49 PM
    Peter S replied to a thread Liberty ship steam engine in General
    RB211, The Liberty engines were/are double-acting, none the less an engine like this can stall on dead centre when starting. Usually there is a...
    31 replies | 2333 view(s)
  • Peter S's Avatar
    10-04-2018, 09:07 AM
    Mark, Can you explain what a Posilock is please? (I found a photo and can see they are similar to the Autolock system). How does it compare with...
    45 replies | 2811 view(s)
  • Peter S's Avatar
    10-03-2018, 09:09 AM
    John, By all means use the quill for boring, that's usual practice on a mill like that. No need to get a powered knee, probably the main reason for...
    45 replies | 2811 view(s)
  • Peter S's Avatar
    10-03-2018, 05:35 AM
    John, The usual way (in my opinion) is to use the knee for all of this - touching off, putting on cuts etc. I only use the quill for drilling or...
    45 replies | 2811 view(s)
  • Peter S's Avatar
    09-14-2018, 02:15 AM
    Peter S replied to a thread scrapyards in General
    How can rebar be called rubbish? Isn't it a vital part of a structure e.g. bridge piling, building foundations? In NZ there has been a big stink...
    46 replies | 4764 view(s)
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About Peter S
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