• Mike Burch's Avatar
    07-16-2018, 04:41 AM
    Mike Burch replied to a thread Digital Tachometers in General
    Man, you've led a charmed life! I've had damage to several remote controls, an illuminated magnifier, several torches, my digital calipers, a PIR...
    35 replies | 994 view(s)
  • Mike Burch's Avatar
    07-15-2018, 07:20 PM
    Mike Burch replied to a thread Digital Tachometers in General
    Slightly OT, but just to say that my extremely cheap 1-to-3-phase VFD can easily be set to read spindle RPM (for a given belt setting on the...
    35 replies | 994 view(s)
  • Mike Burch's Avatar
    07-04-2018, 09:06 PM
    Mike Burch replied to a thread Opinions on Compressor in General
    Cheap compressors usually have their ratings wildly over-stated. 4.7cfm @ 80psi isn't overly generous, but should suffice for most uses. Air...
    42 replies | 1651 view(s)
  • Mike Burch's Avatar
    06-14-2018, 07:07 PM
    About a year ago I fitted a three-phase motor and a VFD to my Rong Fu, and used the old pulleys. I leave the belts set up for maximum speed, and...
    13 replies | 817 view(s)
  • Mike Burch's Avatar
    06-12-2018, 06:16 PM
    Mike Burch replied to a thread OT - Hot tub heating in General
    A heat pump is basically just a refrigerator working in reverse. instead of transferring heat from inside a box to outside it, the heat pump does its...
    36 replies | 2075 view(s)
  • Mike Burch's Avatar
    05-28-2018, 06:39 PM
    Mike Burch replied to a thread Epoxying aluminum in General
    +1. And the five-minute epoxies are a complete waste of time.
    34 replies | 1825 view(s)
  • Mike Burch's Avatar
    05-28-2018, 03:26 AM
    Mike Burch replied to a thread vfd in General
    I run a one-horse three-phase motor on my mill/drill, via a cheap anonymous Chinese single-to-three phase inverter VFD bought through Ali Express. It...
    22 replies | 1729 view(s)
  • Mike Burch's Avatar
    05-27-2018, 06:43 PM
    Mike Burch replied to a thread Epoxying aluminum in General
    Horst, epoxy works just fine on aluminium. De-grease the metal, then abrade the surface with wet-and-dry paper using epoxy as the lubricant. This...
    34 replies | 1825 view(s)
  • Mike Burch's Avatar
    05-27-2018, 06:36 PM
    Yes, I did that on my first lathe, the Sieg C3, but on the new lathe, a Hafco 250 x 500, the guard does not get in the way and is not a problem, so...
    39 replies | 2657 view(s)
  • Mike Burch's Avatar
    05-26-2018, 07:35 PM
    Ah, that has solved a mystery. Just yesterday I noticed a spring in the drawer with lathe attachments in it, and I wondered what it was for. I must...
    39 replies | 2657 view(s)
  • Mike Burch's Avatar
    05-17-2018, 08:14 PM
    And a 47.5 thread angle! BA threads start at 0BA, which is 1/4" in diameter with a 1mm pitch. The successive pitches are each 10% smaller than the...
    34 replies | 2695 view(s)
  • Mike Burch's Avatar
    05-16-2018, 06:39 PM
    Boslab's point about hose diameter is spot on. Air tools need volume, not just pressure, and 1/4" hoses strangle the poor things. My rattle gun...
    22 replies | 2032 view(s)
  • Mike Burch's Avatar
    05-15-2018, 11:26 PM
    If you're going to get 1000 watts worth of current (83 amps) at 12 volts from your 120 volt input there should be some pretty serious copper in the...
    25 replies | 1493 view(s)
  • Mike Burch's Avatar
    05-15-2018, 07:42 PM
    FWIW, my ancient Patience and Nicholson wall chart lists 1x12 under UNF and 1x14 under UNS (Unified Special, a "standard" about which there seems to...
    34 replies | 2695 view(s)
  • Mike Burch's Avatar
    05-07-2018, 05:55 AM
    I have a dear friend who is, alas, a confirmed misogynist. Some years ago he went into that bastion of masculinity, a tractor parts shop, and his...
    73 replies | 4790 view(s)
  • Mike Burch's Avatar
    04-30-2018, 08:09 PM
    Mike Burch replied to a thread 3 phase questions in General
    +1 for the VFD idea. They're cheap, and incredibly useful. You have variable speed at your fingertips without changing belts. And the 3-phase motor...
    17 replies | 1398 view(s)
  • Mike Burch's Avatar
    04-28-2018, 06:28 PM
    Mike Burch replied to a thread CBN Grinding Wheels in General
    I thought my newly-bought drill sharpener had a diamond wheel, but was surprised to discover that it is in fact CBN. So I read up about CBN and...
    9 replies | 865 view(s)
  • Mike Burch's Avatar
    04-28-2018, 06:19 PM
    Jerry, you say the bearing's number is 170382A. Although it's hard to tell from the photo, I think I can see traces of another number between the 1...
    29 replies | 1689 view(s)
  • Mike Burch's Avatar
    04-28-2018, 01:33 AM
    Would it be possible to build up the weird seat and grind it back to 1.0000"? Or would that cause too much distortion?
    29 replies | 1689 view(s)
No More Results
About Mike Burch

Basic Information

About Mike Burch
Location:
New Zealand

Statistics


Total Posts
Total Posts
596
Posts Per Day
0.17
Albums
Total Albums
1
Total Photos
2
General Information
Last Activity
Yesterday 06:12 PM
Join Date
09-04-2008
Referrals
0