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  • darryl's Avatar
    04-23-2017, 07:24 PM
    I have too much on my plate to consider starting a lathe build, but this topic rekindles my ideas along those lines. One thing that I might consider...
    52 replies | 2175 view(s)
  • darryl's Avatar
    04-20-2017, 02:52 AM
    Match the capacitance and go with equal or higher voltage ratings. You can usually go higher in capacitance too- not likely to be a problem unless...
    19 replies | 945 view(s)
  • darryl's Avatar
    04-19-2017, 12:22 AM
    darryl replied to a thread Exposed electrical contacts in General
    Does that mean if it's a cat it's a muon?
    19 replies | 966 view(s)
  • darryl's Avatar
    04-18-2017, 01:48 PM
    darryl replied to a thread Exposed electrical contacts in General
    These are about the easiest conditions for conducting current that you can get- nothing is critical. If I lose some voltage, the leds just become a...
    19 replies | 966 view(s)
  • darryl's Avatar
    04-18-2017, 03:30 AM
    darryl replied to a thread Exposed electrical contacts in General
    Yes, I figure I'm in a sweet spot as far as current and voltages go- enough voltage to overcome some degree of oxidation, non-inductive load and low...
    19 replies | 966 view(s)
  • darryl's Avatar
    04-17-2017, 08:41 PM
    Need to make some electrical contacts to carry 50 ma at 12 volts. One part is a flexible finger and the other part rotates 90 degrees. These will be...
    19 replies | 966 view(s)
  • darryl's Avatar
    04-16-2017, 06:56 PM
    I would pop both of those covers and see what's under them. One obviously has the ac wire going into that cavity, the other perhaps is access to the...
    26 replies | 1431 view(s)
  • darryl's Avatar
    04-16-2017, 05:25 PM
    I guess the big question is whether there IS a start capacitor with that motor. Maybe under the base? If there is one, it's probably dried up to some...
    26 replies | 1431 view(s)
  • darryl's Avatar
    04-16-2017, 03:26 AM
    I wonder if you'd gain anything useful if you cooled the solar panels using pumped water from a lake or stream. You could back the panels with that...
    57 replies | 4026 view(s)
  • darryl's Avatar
    04-16-2017, 12:09 AM
    darryl replied to a thread Yep I suck in General
    Pretty much just a large Unimat- :)
    31 replies | 3097 view(s)
  • darryl's Avatar
    04-14-2017, 08:56 PM
    Nice work. What I like to do with hinges like that is round over the ends. Close the hinge, then take to the drum sander and contour the edge...
    15 replies | 1127 view(s)
  • darryl's Avatar
    04-14-2017, 05:48 PM
    darryl replied to a thread Free triacs in General
    Parts received, thanks for your generosity Mike.
    9 replies | 767 view(s)
  • darryl's Avatar
    04-11-2017, 08:35 PM
    Something else you can do if you use copper wire to remake the tip- you can hammer the center section of the wire before you bend it into a new tip....
    14 replies | 851 view(s)
  • darryl's Avatar
    04-11-2017, 03:20 AM
    Yes a flood would be a disasterous event in my shop. Power going out unexpectedly- I can pretty much put my hand directly onto a machines switch in...
    38 replies | 1956 view(s)
  • darryl's Avatar
    04-11-2017, 03:11 AM
    I use wire like the others. You can make any style of tip that works for the job at hand. I like those guns but they do have a couple weak points-...
    14 replies | 851 view(s)
  • darryl's Avatar
    04-08-2017, 01:49 AM
    darryl replied to a thread plastic lens making in General
    No I hadn't considered a reflector. These are very compact lights, but that just means that a reflector would be smaller too- could be just a section...
    24 replies | 1636 view(s)
  • darryl's Avatar
    04-07-2017, 10:47 PM
    darryl replied to a thread "OT" Rebuild or Replace in General
    How much does it cost you to have that machine down- sometimes you just need it back up and running in the shortest period of time. Which option...
    26 replies | 1417 view(s)
  • darryl's Avatar
    04-07-2017, 10:34 PM
    darryl replied to a thread plastic lens making in General
    More info- the ring of leds is a commercially produced 60 watt light bulb taken apart. There are 15 leds arranged in a circle on an aluminum disc-...
    24 replies | 1636 view(s)
  • darryl's Avatar
    04-07-2017, 08:24 PM
    darryl replied to a thread plastic lens making in General
    To clarify- my application is to focus some light into a bit of a beam. The light is a ring of leds which gives a flood. I just want to turn it into...
    24 replies | 1636 view(s)
  • darryl's Avatar
    04-07-2017, 02:12 AM
    darryl started a thread plastic lens making in General
    It's been a long, long time since I made a lens using a lathe. We used to use plexiglass and a wood lathe. I don't recall any details now. So-...
    24 replies | 1636 view(s)
  • darryl's Avatar
    04-06-2017, 03:00 AM
    Couple things- I've found that commutators aren't all properly prepped to begin with. That will wear out brushes early. And if the brushes aren't...
    14 replies | 1059 view(s)
  • darryl's Avatar
    04-03-2017, 03:12 AM
    Make a top and bottom die with the shape according to your diagram, but make it only 1/2 inch wide. You need to make them pivot so they will stay in...
    18 replies | 1239 view(s)
  • darryl's Avatar
    04-01-2017, 03:57 PM
    JB has steel in it, but so little that it would only serve to 'short out' a few lines of force- so few that I doubt it could be measured. As for...
    36 replies | 2639 view(s)
  • darryl's Avatar
    03-30-2017, 12:30 AM
    darryl replied to a thread Free triacs in General
    I would use them to run some halogen tubes in a special lighting unit that I'm thinking of building.
    9 replies | 767 view(s)
  • darryl's Avatar
    03-29-2017, 05:10 AM
    darryl replied to a thread Fractional Hp motor ratings in General
    Electric motors have fascinated me since I was just a kid. Back in the day the usual ac motor that might be found in a table saw or drill press was...
    56 replies | 2401 view(s)
  • darryl's Avatar
    03-29-2017, 02:05 AM
    darryl replied to a thread coating on brass in General
    It started from the edges of the strips. It appears to me that the surface of the coating tried to stay intact while the edges curled up, drawing the...
    11 replies | 789 view(s)
  • darryl's Avatar
    03-28-2017, 08:34 PM
    darryl replied to a thread coating on brass in General
    There was some slight discoloration, but very little. As I suggested I didn't leave it in the bath too long, probably 15 minutes or so. The...
    11 replies | 789 view(s)
  • darryl's Avatar
    03-28-2017, 02:48 AM
    darryl replied to a thread coating on brass in General
    Well I got my answer- muriatic acid is eating it right up! At first it didn't seem to be doing anything, so I left it for a while, then gave it a...
    11 replies | 789 view(s)
  • darryl's Avatar
    03-28-2017, 01:47 AM
    darryl replied to a thread coating on brass in General
    Hmm- I just remembered the Cole Parmer chemical compatibility chart, so I looked up polyurethane and sulfuric acid. It said 'severe effect', so -...
    11 replies | 789 view(s)
  • darryl's Avatar
    03-28-2017, 01:12 AM
    darryl replied to a thread coating on brass in General
    Yes, I think it is a urethane, not an epoxy- the smell is similar but not quite the same.
    11 replies | 789 view(s)
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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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