Optical Punch: amzn.to/4blVa7P "Loupe" Magnifier: amzn.to/4bvSnsJ "Prussian Blue" marking compound: amzn.to/3zrKjvZ

Learned something new today. Thanks man. I'm 53 and actually love and appreciate learning something new everyday. My grandpa told me when I was young, "the day you stop learning, is the day you stop breathing". Thanks and God bless brother.

Excellent video! I'm loving this format of video responses to comments- Thanks!

Awesome! I lay out center punch holes using sharp scribe lines, deep enough to pick up with a sharp punch. I can feel scribe crossings. Start the punch light, I then adjust if needed with a flatter angle punch held at an angle. Once the apex is on, bring it to 90° for final impact.

Might try to flame polish the optical ends

Your last stage of polishing use a blow torch and lightly go over it. It’ll remove any fine. Scratches and give you a remarkable finish.

When I worked at Boeing years ago as a jig builder, we have similar devices called bomb sights. These were definitely top of the line as I worked within .002 tolerances. Ours had micro thin lines for different offsets, radii, etc. These are more hobbyist sights but would suffice for some work. I can appreciate you tackling These questions and solving them to suit your needs.

In aviation we call these bomb sights. They can also be clamped in place in some applications.

My new TIG setup showed up, I spot a new video by the weldmaster himself, annnd.. It's not about Welding. lol This was a fun one! 1st time I've heard of these optical-punches.. Very Cool! And as for the "Loupe' Mag, I've always heard of those referred to as 'Jouler's Loops', they're very handy! I mostly used mine for ultra precise concentration of sunlight when burning ants.. [I mean . . . mostly used mine for doing precision pcb component soldering projects] Fresnel are fun to play around with as well - They're nice for hood lens magnifying if ya don't use cheater-glasses. Anyway.. Great video as always, Bro! Keep up the great work, and thank you for sharing! 🤘 Sam -

So, basically it is just a tool for accurately locating punch marks. That could be useful. The distortion that you are seeing is called spherical aberration. It is because the different wavelengths of light are refracted at slightly different angles. The only way to compensate for it is to use multiple lenses. I guess the best way to see this is to look at a cutaway of a high-end camera lense. Also, you might want to look into the different clear plastics as they have different indices of refraction.

Thanks, i learned something new today Never knew those things existed. Seems like it can be quite practical in some cases. We all know the feeling of hitting our center punch and the hit is off by 0.5mm..

Abom showed how to use these a few years back. Neat idea.

First saw one of these in a Lee Valley catalogue and bought it to see what it was all about. I very much like the accuracy I can get with them,and I’m glad I bought it,but I don’t use it for everything,just the stuff that needs to be quite close but has to be drilled by hand.

One of the better purchases I've made, really comes in handy when you need to make a series of holes in a line

Optical punch... Dayuuuum! I never heard of such a tool. Awesome! Learning is occurring, even though i doubt I'll ever need anything that precise💪🏆

22:52 That's how we pronounce it here in NZ. Love my scale lupe with all the different lenses for angles, dims, etc. I'm going to dig it out and show my kids, then take into work and show my Machining students. It's one of those specialty tools that I was extremely glad I owned some days when Toolmaking. Came in handy when re-manufacturing metal pressing tools and injection mold work.

A two-lens design on a magnifier can correct color distortion much better than a one-lens design. This is done by using different glas types for the lenses (different refractive indices or Abbe numbers). Try an one-lens design with monochromatic light (colored led light for starting). The piece which was short in focal length may be good at green LED light as from red to green to blue the refractive index of acrylic glas will increase. Use only colors where a dedicated LED shines monochromatic (red or green) or a sodium pressure bulb which is monochromatic, too.

I have always used the braille method. Scribe lines and feel the lines with the point. Or better yet use a CNC laser.

Search for dry cotton wipes or dry cotton baby wipes. Absolutely no scratching at all. I always use them to clean my 3d printer resin vat ✌️ Not very expensive either ✌️ Great video as always

SPI makes a high quality version of that, part # 91-285-7, around $120

Very good info, I appreciate it!

I’m loving these videos, never even knew about an optical punch. What model lathe are you using and do you ever wish it was larger?

That's a very good idea. Never seen them before.

I have a good quality one of these and dont have any of the issues shown here. It's a useful tool for sure.

Great video thanks!

If you want to pursue the optics more, look for info on telescope lens making

Hello fellow leftie! Great video as always. You showed me how to reduce error on a three jaw chuck when removing and reinstalling a part.

The first time I did a stoppie some dickhead pulled out in front of me on a 35 mph road. I was doing the limit. I didn't want to let off the brake and run into them. Somehow I managed braking and balance. After that I did it for fun. Life is dangerous.

I'll be honest, I'm surprised you got that to work at all. Years ago I bought a 7W laser diode and then for months went down the rabbit hole trying to figure out how to improve the beam profile and reduce the divergence. I couldn't make sense of any of it. Optics is black magic.

I'm a certified optics technician expert (42 yrs experience) and to explain how/why these lenses work is the simplest thing in the world! It's magic.👍

It's still kinda weird seeing your bare naked hands... good stuff.

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I have CAD drawings in a pdf I'm happy to share for free if anyone wants plans to make their own. It's relatively easy with a home lathe. I can't post a link to anything in you KZfaq comments though 😕

Just think, we copy what nature designs. Pretty amazing when you think about it.

Short story long: www.youtube.com/@HuygensOptics nice video and idea BTW 👍

oh my friggin god Aaron, dont you know that that what youre doing is dangerous? Irresponsible. I think ive heard of an optical punch before. You should make a second base with one very thin edge so you can get close into corners or something.

Grizzly tools have really gone downhill in the past few years.

Given that the tool is manufactured in India, it is highly probable that the radius will be a metric unit of measurement rather than imperial units.

That's indian quality work for ya