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  • darryl's Avatar
    Today, 02:02 AM
    darryl replied to a thread We have it EASY--- in General
    You said it, Alistair. How can it be that millions of people who would be peaceful are led by the very few that would be warmongers. What was that...
    50 replies | 4683 view(s)
  • darryl's Avatar
    Yesterday, 12:18 AM
    I appreciate the discussion. I did have some kind of dovetail system in mind- possibly a V where the tool holder would nest and be forced into...
    30 replies | 1623 view(s)
  • darryl's Avatar
    08-19-2014, 01:26 AM
    Just was milling a gearbox and realized I was cranking the head up and then down each time I changed a tool- drill chuck, end mill holder, fly...
    30 replies | 1623 view(s)
  • darryl's Avatar
    08-18-2014, 10:37 PM
    darryl replied to a thread Optimum settings in General
    Highly likely it was 6061 T6- originally the donor piece came from a semi-trailer construction and maintenance shop. My friend worked there and came...
    6 replies | 612 view(s)
  • darryl's Avatar
    08-18-2014, 10:23 PM
    Sure you can do it, but there are some ramifications. If one motor is loaded just a bit more than the other, the voltage across it will drop and so...
    7 replies | 694 view(s)
  • darryl's Avatar
    08-18-2014, 01:11 AM
    darryl replied to a thread Optimum settings in General
    7 thou gave a chip that didn't tend to clog the bore. 6 thou gave a different chip, and so did 8 thou. Both of these tended to wrap around the bar...
    6 replies | 612 view(s)
  • darryl's Avatar
    08-17-2014, 04:27 PM
    darryl started a thread Optimum settings in General
    No question here, just an observation. Was machining a bearing bore in aluminum flat bar, and through trial and error found that 7 thou was the...
    6 replies | 612 view(s)
  • darryl's Avatar
    08-17-2014, 04:20 PM
    Has anybody mentioned magneto bearings- that might do what you want. Just a thought.
    19 replies | 1239 view(s)
  • darryl's Avatar
    08-17-2014, 04:15 PM
    darryl replied to a thread Aluminum "grease" in General
    The strip of nylon is a good idea, especially since it's easy to come by in the form of banding, and is already about the right width. A visit to any...
    18 replies | 1391 view(s)
  • darryl's Avatar
    08-17-2014, 02:47 AM
    darryl replied to a thread Sources for good files? in General
    If you doubt the wisdom of buying a good file, for whatever 'premium' it might command in price, then buy a chinese made one and be prepared to learn...
    13 replies | 1567 view(s)
  • darryl's Avatar
    08-17-2014, 02:37 AM
    darryl replied to a thread Rockwell Spindle Bearings in General
    If it's resistance to the spindle turning that's causing the motor to drop out, then the preload is way, way too much. Bearing damage is imminent....
    30 replies | 1722 view(s)
  • darryl's Avatar
    08-15-2014, 03:21 AM
    darryl replied to a thread I wet my pants. in General
    I was looking for the picture too- :)
    8 replies | 1097 view(s)
  • darryl's Avatar
    08-15-2014, 12:09 AM
    I have a mill/drill and two drill presses. If I had to lose one drill press now, I'd miss it.
    49 replies | 4322 view(s)
  • darryl's Avatar
    08-14-2014, 09:29 PM
    Styrofoam. Thought I'd put this word first so you can skip the topic if it sounds like it's going to be stupid. I potentially have a project in...
    3 replies | 288 view(s)
  • darryl's Avatar
    08-13-2014, 12:43 AM
    As I'm modestly equipping my new shop- I think I'll get one of those surface plates that were farmed out (or out on the farm)- the 12 foot by 4 foot...
    87 replies | 6319 view(s)
  • darryl's Avatar
    08-12-2014, 08:42 PM
    Over the years I've learned that people appreciate things in different ways, value things differently. All of it is valid, even if they aren't shared...
    4 replies | 655 view(s)
  • darryl's Avatar
    08-12-2014, 12:50 AM
    This stuff turns into powder when turned. I made a mistake when cutting the thing to length and had to cut off another eighth or so- the ring that...
    9 replies | 1065 view(s)
  • darryl's Avatar
    08-11-2014, 03:00 AM
    darryl replied to a thread Machinist backache in General
    Have not done much lathe work lately, but yesterday and the night before I spent about 3-4 hours in front of it. I have the rubber mat, and it helps,...
    18 replies | 1377 view(s)
  • darryl's Avatar
    08-11-2014, 01:45 AM
    The cap could be leaky or have a residual charge, as stated. Either way, the Fluke or any meter will have a problem reading it correctly. What I...
    18 replies | 1529 view(s)
  • darryl's Avatar
    08-11-2014, 01:24 AM
    darryl replied to a thread ac/dc resistance in General
    The basic power supply will show the highest output voltage when no current is being drawn, and that voltage will drop and continue to drop as higher...
    40 replies | 4081 view(s)
  • darryl's Avatar
    08-10-2014, 01:07 PM
    Agreed- made in China means it could be re-re-re-re-re melted scrap, probably includes uranium :)
    9 replies | 1065 view(s)
  • darryl's Avatar
    08-10-2014, 01:05 PM
    I've done that a few times using ordinary copper pipe. Cut rings from it, solder a few wires inside each one, then bring the wires together into one...
    21 replies | 1567 view(s)
  • darryl's Avatar
    08-10-2014, 03:04 AM
    A few times now I've picked up some cast iron plumbing fittings to use for other applications. Flanges have been useful- usually I bore the threads...
    9 replies | 1065 view(s)
  • darryl's Avatar
    08-10-2014, 02:44 AM
    darryl replied to a thread Shrink fits revisited in General
    Here's an update- the first pieces I assembled went together well, as did the second two pieces. I was using one thou as the size difference. The...
    16 replies | 1335 view(s)
  • darryl's Avatar
    08-09-2014, 06:37 PM
    darryl replied to a thread Shrink fits revisited in General
    Agreed, there are several factors involved with shrink fits. For simplicity, I took the suggested formula of one thou per inch that many people have...
    16 replies | 1335 view(s)
  • darryl's Avatar
    08-09-2014, 05:03 PM
    darryl replied to a thread Shrink fits revisited in General
    I did think about making an undersized test pin, but it then requires that you can bore to a closer tolerance than you can turn an OD. I can file or...
    16 replies | 1335 view(s)
  • darryl's Avatar
    08-09-2014, 04:05 PM
    darryl started a thread Shrink fits revisited in General
    It would seem that the standard number for a shrink fit of steel parts is .001 per inch of diameter. Right now I'm on the verge of putting a boss on...
    16 replies | 1335 view(s)
  • darryl's Avatar
    08-09-2014, 12:46 AM
    darryl replied to a thread casting plastic nuts in General
    Thanks for the ideas. These are rolled threads, and I cleaned them up pretty well. I expected them to 'interfere' in the epoxy threads anyway, and...
    37 replies | 3136 view(s)
  • darryl's Avatar
    08-09-2014, 12:02 AM
    darryl replied to a thread ac/dc resistance in General
    A typical silicon bridge rectifier is a rather lossy thing at low voltages and higher currents. You should probably be looking for a bridge made...
    40 replies | 4081 view(s)
  • darryl's Avatar
    08-08-2014, 11:31 PM
    I used to have a problem with that- knowing that coming into a large sum of money would change things, and me. Now that I've thought about it many...
    87 replies | 6319 view(s)
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About darryl

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About darryl
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Chilliwack, B.C.

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I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

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