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  1. Replies
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    For a prototype, I would use aluminum. It is a...

    For a prototype, I would use aluminum. It is a lot easier to work with so that will go faster and less expensive. Get the dimensions right first. Then worry about designing the permanent mounts.
    ...
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    687

    You say partS, PLURAL. I wonder if it might be...

    You say partS, PLURAL. I wonder if it might be better to break it up into several smaller and LIGHTER parcels. Pack them in foam in heavy cardboard boxes. Wrap them in plastic and then spray Great...
  3. I find that the squeeze bottles work better than...

    I find that the squeeze bottles work better than the ones with a pump. I get them from McMaster and they work OK.

    I also purchase the small, squeeze bottles of saline nasal spray from WalMart....
  4. I have tried the electric edge finder both ways,...

    I have tried the electric edge finder both ways, running and still. When I use it without rotation, I try to find a high and low side and use a point half way between. But that is a PITA. Running...
  5. Wake up! Pour another cup! And pay attention. ...

    Wake up! Pour another cup! And pay attention.

    He is talking about THREE PHASE. There is no neutral. Three wires are needed to carry the basic, three phases. A FOURTH wire would be needed to carry...
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    I have more or less had the same idea, but there...

    I have more or less had the same idea, but there are simply too many sizes of screws/bolts available for anyone to amass any kind of complete collection. What I have done is:

    1. When I needed a...
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    1018 is not known for it's machinability. The...

    1018 is not known for it's machinability.

    The first thing I would try is a good cutting fluid; one with good lubricative properties. Tap Magic or perhaps a good lubricating oil like LPS. Cooling...
  8. Duhh, perhaps because we don't want to pay those...

    Duhh, perhaps because we don't want to pay those sky high European prices?
  9. Seems like the answer is obvious. From the posts...

    Seems like the answer is obvious. From the posts above this, they are obviously making a ton more money doing it their way.
  10. Shunt breakers, relays, solid state relays, or...

    Shunt breakers, relays, solid state relays, or any other device that you would like to consider will have an OEM's DATA SHEET. These are available from most standard suppliers (not E-bay or Amazon...
  11. Yes, you must change your layout technique. One...

    Yes, you must change your layout technique. One of the first things I do when working with a drawing is to figure out a proper reference edge/surface and change all the dimensions to work from that....
  12. I see a lot of discussion about electric or...

    I see a lot of discussion about electric or electronic methods. I have an electric edge finder and my feeling is that it can work, but it is not as reliable as it could be. The almost unavoidable...
  13. Less than a thousandth without contacting the...

    Less than a thousandth without contacting the surface? Easy!

    Household aluminum foil is very close to 0.0007" thick. I have checked different brands and they all check out the same. So, I use a...
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    Involute gears can be cut with some variation in...

    Involute gears can be cut with some variation in the actual pitch diameter. This has even been used to make gears with +1 and -1 tooth, all with the same pitch diameter as the base number. An example...
  15. Exactly the way I drilled a glass vase for a...

    Exactly the way I drilled a glass vase for a power cord. It was being converted to a table lamp. Not the fastest way in the world, but there is almost zero chance of breaking the glass. A carbide bit...
  16. I did not use the locations of the existing,...

    I did not use the locations of the existing, threaded holes in the chuck. I wanted to be able to add a back plate at a later time so it could also be used on my lathe. With no back plate installed on...
  17. That is exactly what I did to mount a 6", 4 jaw...

    That is exactly what I did to mount a 6", 4 jaw on my RT which has six radial slots. I purchased a new, import four jaw without any back plate. I did do a little planning on the hole locations but...
  18. Thread: OT: Flashlights

    by EPAIII
    Replies
    55
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    2,533

    I was in the local ACE Hardware today and I saw...

    I was in the local ACE Hardware today and I saw their display of flashlights - about ten or twelve feet of one side of the isle. Dozens of them. LEDs, bulbs, two AAAs to four or more Ds. And one...
  19. Well, you may be able to do the same things on...

    Well, you may be able to do the same things on each, but they each are somewhat better for certain tasks while not so convenient for others. For instance, the simple idea of using a milling vise...
  20. Thread: OT: Flashlights

    by EPAIII
    Replies
    55
    Views
    2,533

    No matter what color they are, they are quite...

    No matter what color they are, they are quite hard to find in the dark. That's why I like carrying one in my pocket at all times.
  21. Thread: OT: Flashlights

    by EPAIII
    Replies
    55
    Views
    2,533

    I have one of these: ...

    I have one of these:

    https://www.amazon.com/Carson-MiniBrite-Lighted-Aspheric-Magnifier/dp/B00524H8MC/ref=sr_1_17?dchild=1&keywords=flashlight+magnifier&qid=1619302791&sr=8-17

    It has both a...
  22. I saw some pretty long responses between my...

    I saw some pretty long responses between my previous post and now and there is probably some pretty good information in them.

    I have had experience with both PCB etching and photographic work and...
  23. Sorry about that. But I have observed the core of...

    Sorry about that. But I have observed the core of the older, single core rosin core solders crack and crumble. It IS quite hard and brittle.
  24. I have worked in electronics for over 45 years...

    I have worked in electronics for over 45 years and I did electronic hobby work before and since. Probably at least 60+ years with lead based solder. I still use it today. You can even add to that...
  25. Yes, this is a common, well known problem with...

    Yes, this is a common, well known problem with parts that are being held in milling vises. The first thing you need to do is understand just what is going on to produce this lift. I made this sketch...
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