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  1. Replies
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    I have pressed in over-size 1/4” dowel pins into...

    I have pressed in over-size 1/4” dowel pins into reamed aluminum .2500 holes in small numbers using my BP. The force required was significantly less than that required to drill a half inch hole with...
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    There are significant issues melting granular...

    There are significant issues melting granular metals (swarf) in hopes of casting it into ingots. The high ratio of surface area to mass guarantees much or most will be lost to oxidation. I believe...
  3. I emailed Archie yesterday and got a nice 700...

    I emailed Archie yesterday and got a nice 700 word reply. He was indeed a full professor at Cal Poly. Ever the gentleman, he was very kind about my mistake saying that the title itself was not that...
  4. As I read through this thread here’s a guy and...

    As I read through this thread here’s a guy and some collaborators who graciously and generously VOLUNTEERED their time and expertise to fill an identified public health need. After what sounds like...
  5. What one would like to avoid is spreading metal...

    What one would like to avoid is spreading metal (in essence peening) the underside of the tee slots by not applying metal-displacing point loads to the tee slots. Longer nut might help a little but...
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    Well I spoke too soon---I'm not superstitious,...

    Well I spoke too soon---I'm not superstitious, but it seems weird that this very package that I wrapped like a burrito above has disappeared! I had put it out in my locked mailbox for pickup and...
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    An idea from 'left field." Make it...

    An idea from 'left field."

    Make it differently. Based on appearance of the parts the OD of the cross piece need not be controlled to tenths.

    Might be interesting to make the cross pieces each...
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    Magpie, Good point and a recommendation I...

    Magpie,

    Good point and a recommendation I always follow. I did print a second copy of the label and attached it to the outside of the “burrito” with a circumferential wrap of strapping tape. I...
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    Garwood, I got an order this morning for an...

    Garwood, I got an order this morning for an unmachined 8" to go to Indiana. Now that my local hardware store has medium weight "Floor Saver" in stock, it's a good chance to "roll a burito" as you...
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    Ya, I have no idea why I did not Google ISO 13849...

    Ya, I have no idea why I did not Google ISO 13849 and pore through the hundreds of pages to find the applicable paragraphs regarding E-Stops! That’s a good one.

    Seems like it could have been easy...
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    I guess what occurs to me is that there are tons...

    I guess what occurs to me is that there are tons of very sophisticated CNC machines that are hardwired to computer controls. The control achieved is the source of amazement for most of us as...
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    60 dollar Costco Type S booster battery is...

    60 dollar Costco Type S booster battery is amazingly effective, safe, and convenient. It has a little screen that lights up when you turn it on and it walks you through (I know how, but not everyone...
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    Nice silver gelatin print. I will comment that it...

    Nice silver gelatin print. I will comment that it demonstrates a kind of deterioration common to old prints called “foxing.” If you are interested in preserving the photo, someone in your area...
  14. Two Thoughts: 1) I do not intend to broadly...

    Two Thoughts:

    1) I do not intend to broadly paint Amazon with a tar brush as some irresponsible and evil empire. They did easily offer a full refund on this and they have appropriately refunded...
  15. OT: Whether Amazon Feedback is Posted on an Item is Determined by the *Seller.*

    Over the last year or so I have noticed a few of my reviews not ever being posted on Amazon. Those missing reviews were fair, in my opinion, but not positive. The positive ones, which make up the...
  16. Replies
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    I have been experimenting with polystyrene foam. ...

    I have been experimenting with polystyrene foam. I can heat my SE's to a couple hundred degrees with no concern and then set them on the foam and let them settle in to make a very nicely "fitted"...
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    I guess you mean like in post 4 above where I...

    I guess you mean like in post 4 above where I shipped and 8 and 18 in a single large FRB? For international shipping FRB's are 3 to 4 times the price you pay for domestic shipping and there are...
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    Thanks for the suggestion! Hmmm, that sounds...

    Thanks for the suggestion!

    Hmmm, that sounds like something I should explore. It makes me think of the heavy paper contractors commonly use for floor protection during a remodel, for instance. I...
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    All ready to go along with duty declaration in...

    All ready to go along with duty declaration in triplicate.

    299720

    It is more work to make this package than the tube, but it also should get the machined casting to the destination without any...
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    Just when I thought I had the packaging of the...

    Just when I thought I had the packaging of the 8's all figured out, along comes an order from a guy for a fully machined 8 to ship to Edmonton AB. No problem, right? Except that though USPS...
  21. And how accurate was that? And what method...

    And how accurate was that?

    And what method did you use to scribe them? I can think of a method or two, but I'd be interested to know what you found practical.

    Finally, I have been thinking a...
  22. Flight of fancy?

    OK, I just woke up with a couple ideas running around in my head neither of which may necessarily be practical, but they are interesting to think about and one is pretty easy to execute. So little is...
  23. Scribed line is not a bad idea. Might try that...

    Scribed line is not a bad idea. Might try that and compare to the feeler lugs that Tyrone described. I think the lugs by feel will be more sensitive than a visualized line. But the line certainly...
  24. Good point, Paolo, about the ram position...

    Good point, Paolo, about the ram position affecting tram. No doubt that is true. Just for the sake of discussion, in an attempt to defend use of a pin on the BP for the nod function, I would say...
  25. Thanks again, Tyrone. You and several others...

    Thanks again, Tyrone. You and several others have provided very thoughtful points of view that have made this thread, at least in my opinion, interesting and informative.

    Denis
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