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Cool Tools in your home shop that you'd not likely not see in someone else's?

eotrfish said:
Used to cut tightly compressed powdered high explosives to inspect for voids and/or striations in the finished product.
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I have not heard of that process, but I guess it would be applicable for QC of PETN or TNT in detonators or primers. The goal would be a clean cut without producing heat. As I said, that's just my guess, but I'd be interested in learning more about that process.
 
Today’s acquisition - 1910 Sears / Acme two-speed post drill. Good condition, fully functional, needs some nice black lacquer paint with gold trim. Also time to make a keyless chuck adapter. Cost me more than the original $7.10.

IMG_0015.jpeg


IMG_0017.jpeg
 
whydontu said:
Today’s acquisition - 1910 Sears / Acme two-speed post drill. Good condition, fully functional, needs some nice black lacquer paint with gold trim. Also time to make a keyless chuck adapter. Cost me more than the original $7.10.

View attachment 55557

View attachment 55558
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If you're going for an original look with black lacquer and gold trim, can you really go to a keyless chuck ?

Super cool though.
 
Susquatch said:
Ya, but what do YOU use it for?
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I haven't used it since I acquired it. I dug it out of some memorabilia after I read 1018Machine's post about making watch indices. I thought it might be useful to him although it was fairly large (0.015" dia.). I did some web searches and found a current supplier who listed diameters down to 0.005" - alas still too large for 1018Machine's needs.
 
Here's a Rube Goldberg shaped charge inspection device from the late 50's/early 60's

Shaped Charge Liner inspection jig. Allows inspection of liner thickness at 120deg intervals and up to 4 positions along the length of the liner.

SC INSPECTION 01.jpg


This shot shows a charge liner in position to be measured. Liner uniformity and thickness is critical to jet penetration performance.
This charge liner is made from sterling silver powder, die pressed with approximately 30,000 lbf.
SC INSPECTION 02.jpg
 
eotrfish said:
Here's a Rube Goldberg shaped charge inspection device from the late 50's/early 60's

Shaped Charge Liner inspection jig. Allows inspection of liner thickness at 120deg intervals and up to 4 positions along the length of the liner.

View attachment 55569

This shot shows a charge liner in position to be measured. Liner uniformity and thickness is critical to jet penetration performance.
This charge liner is made from sterling silver powder, die pressed with approximately 30,000 lbf.
View attachment 55570
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Wow.
 
eotrfish said:
It was actually used for shaped charge QC. Primarily HMX or RDX encased in a steel housing with a powdered copper/tungsten liner - all pressed together.
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Flat slab friction material is made from a blend of resins, fillers and powdered/short fiber (glass & Kevlar, for example). This blend is lighted pressed between two steel sheets in a closed side mold with low heat
to form a soft briquette; the steel-sandwiched briquette iis then pressed at higher heat to melt the resin and form a sold slab. At Raymark and most other manufacturers, the second press isn’t made in a form so material squeezes out and there’s no guarantee that there are no internal “blisters,” so after cooling under pressure the steel sheets are removed and they use a small mallet to rap the slab listening for hollows. This isn’t very effective and quite a bit of scrap is produced.

We found a company in Norristown that used ultrasonics to check for voids in the insulation on liquid fuel booster rockets (voids in the insulation will lead to ice formation, adding significant weight to the booster). This company felt they could find the blisters in the slabs with their process and they did a fairly good job but didn’t find all of them; plus when they gave us a quote after the test testing, It was equivalent to about 50% scrap. However, it was an interesting application.
 
PeterT said:
For downhole casing (well) perforation work?
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Yes - that charge liner was just a presentation piece that was made to see if it could be done with powdered silver. It has held up remarkably well for 40 years - been handled and mishandled a lot but still intact. The production liners, which are somewhat more fragile, were made with powdered copper and powdered tungsten.
 
CWret said:
I have a pair of TE-CO toe clamps. (Thanks to @Stuart Samuel for putting me in contact with the seller during our Forum spring meet-up)
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Just sold my 2 sets of (4) TeCos on the bay . :) Got some good $$$$ for them . $165 for the 4" , $175 for the 5" .
 
Really cool instrument. Thanks for the additional info - very interesting!

eotrfish said:
Shaped Charge Liner inspection jig
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I have just enough experience with shaped charges to be dangerous.
It's called a shape charge, but the shape of the charge is not as critical as the liner: geometry (shape); metallurgy; and consistency. So I can see why QC of the liner is very important.
Back to your original post above - Is the diamond coated wire used to cut the liner?
 
mmcmdl said:
Got some good $$$$ for them . $165 for the 4
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As I recall, I paid $100C for my pair. Which is a bit less than $165US for 2 pair. Also, it was a short drive, so no shipping. Yep, I'm happy with my purchase.
 
Dwg says ‘conical liner’ but that looks more like the c/s of a linear shape.
Unless it’s designed to shoot a line of holes?
 
I think the illustrator took a little artistic license since the back half of the liner isn't shown. A similar cross section works for an LSC (Linear Shaped Charge) except that the charge is in fact linear.

Google "Shaped Charge" images for some fascinating insight into the world of shaped charges.
 
I imagine that googling too much information about shaped phone chargers and the like could earn you an unannounced visit from some very curious and persistent people wearing dark blue clothing and very heavy belts.

That is a fascinating topic though, and a very unique tool to boot.
 
I was nine years old and I spotted this 1 1/2" vice in the tool section of the local Co-op store. I remember saving up my money
to buy it. It was 99 cents and 5 cents tax. A lot of money for a nine year old in 1968. It took me a couple weeks to come
up the cash. I remember when I had the money in my pocket and going to the tool department and being so happy to see
it was still there no one beat me to it.
It was a great asset building models and model air planes with Cox .049 engines in them. I spent a lot of time over this vice.
Life goes on and it was long gone and forgotten. One day several years ago my Dad asked me "Do you remember this?
it was your first vice". I still make sure and use it on occasion just because.
vice.jpg
 
terry_g said:
I was nine years old and I spotted this 1 1/2" vice in the tool section of the local Co-op store. I remember saving up my money
to buy it. It was 99 cents and 5 cents tax. A lot of money for a nine year old in 1968. It took me a couple weeks to come
up the cash. I remember when I had the money in my pocket and going to the tool department and being so happy to see
it was still there no one beat me to it.
It was a great asset building models and model air planes with Cox .049 engines in them. I spent a lot of time over this vice.
Life goes on and it was long gone and forgotten. One day several years ago my Dad asked me "Do you remember this?
it was your first vice". I still make sure and use it on occasion just because.
View attachment 55714
Click to expand...
Your tale of the childhood vise and looking across the room in your photo ( the Dillon and Lee and a case cleaner) brought back memories of when I was nine yrs old helping the old man loads some up...and over 200,000 rounds later I'm still at it.
 
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