Air Rifle v Wine Glass

Tyguy wrote in post #17988023
A few more:

1.

IMAGE LINK: https://flic.kr/p/GEkw​at IMG_0081 by Tyler Gerritsen, on Flickr

We used less colouring in each cup. We also put a few drops in the cup immediately prior to the photo for added effect. There are some interesting effects happening... The Ikea cup glass is different (probably very poor quality). There appears to be cavitation or some other effect happening on the left side of the cups.

2.

IMAGE LINK: https://flic.kr/p/GEkB​e6 IMG_0069 by Tyler Gerritsen, on Flickr


3.

IMAGE LINK: https://flic.kr/p/FJYb​St IMG_9678 by Tyler Gerritsen, on Flickr

Unfortunately the Ikea glass behaved differently. We couldn't get a good shot of the pellet travelling through the cup, as the cup would instantly explode.

4.

IMAGE LINK: https://flic.kr/p/FJNA​ds IMG_0088 by Tyler Gerritsen, on Flickr

5.
https://flic.kr/p/GEkV​RMIMG_0056 by Tyler Gerritsen, on Flickr

Thanks for looking!

Out of interest is the glass you used in the first shot of this series from a different batch that the others? It seems as if the crack propagation speed is a lot faster for that one than the others in the series. I would expect that better quality glass would be harder than cheap, and so the cracks would propagate faster, in just the same way that the speed of sound would be quicker. Out od interest how are you triggering the flash? Acoustic off of the muzzle crack? I think that I might have a go at getting some shots of clays being hit by a shotgun, that should be pretty spectacular. I have some studio strobes, so all I really need is an easy way to trigger them, which as I have a degree in electronic engineering really shouldn't be too difficult.

Alan

1 & 4 are same (Ikea Forsiktigt), 2 & 5 are same (Ikea Svalka), 3 is from a thrift store. You could be correct, or perhaps a higher quality glass is annealed such that internal stresses are lower = slower propagation? I don't really know, just spouting off theories

The sensor is a piezo buzzer connected to an Arduino, which you can set the trigger sensitivity and delay. Flash unit is connected to Arduino via optoisolator. I originally attempted to trigger off the muzzle as you stated, but it would also trigger off the internal sounds of the rifle and we couldn't get any consistency. Eventually tried triggering off the rifle's trigger mechanism (with a much longer delay... ~60,000 microseconds compared to ~2,000 microseconds at the muzzle) and it's relatively consistent. I would like to try an optical trigger at the muzzle (laser broken by the pellet exiting the barrel) but don't know if a light sensor can respond quickly enough. You may have even better ideas for triggering methods.

If you do attempt, be sure to share how it worked out. I think shotgun v clays would be spectacular!

Setup:

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I went to a piezo trigger for water drops and it should work here. It is mounted between two pieces of acrylic to make a table and can be set so sensitive I have to turn off the radio. That way you would be sensing when the pellet touches the glass, or maybe a paper target a set distance before.

The timing of these shots are incredible. AWESOME WORK.

flyfisher wrote in post #17995426
The timing of these shots are incredible. AWESOME WORK.

I think that the timing is done with a sensor.

flyfisher wrote in post #17995426
The timing of these shots are incredible. AWESOME WORK.

Thanks!

And yup, timing was performed by an Arduino with a sensor.

A few more from yesterday. Now using a ballistic chronograph as a trigger, makes the process much more precise and reliable. The last one is the aftermath, glass number three was never hit. I think the bullet was deflected too far by the other glasses.

1.

IMAGE LINK: https://flic.kr/p/KfKQ​Yu

IMAGE LINK: https://flic.kr/p/JZ1v​bh

IMAGE LINK: https://flic.kr/p/Kndz​Cy

IMAGE LINK: https://flic.kr/p/Kq3x​VX

IMAGE LINK: https://flic.kr/p/JZ1L​nE

IMAGE LINK: https://flic.kr/p/JZ1S​YW

IMAGE LINK: https://flic.kr/p/JtD6​Vi

Tyguy wrote in post #18075389
6.

IMAGE LINK: https://flic.kr/p/JZ1S​YW SmashCam Progression 006 by Tyler Gerritsen, on Flickr

This one, #6, is just out of this world amazing. And beautiful.
Absolutely stunning work.

Thanks!!

Personally I like the images that show more of the volatile action as the pellet passes through completely and the liquid is seen exploding outward.

The drops of color added just prior to the shot is an interesting touch. Adds a nice visual element I've not seen in similar images.

Just an observation; cheaper glasses tend to be a little thicker. While slightly more pricy, a finer glass may give you better shatter results.

Food for thought.

Hmm, I've been fixated on getting photos of the bullet travelling through the cup, before the mass action is happening... Could have done a few more of the big action. Thanks!

What a GREAT idea! A very good series of images.

Hey thanks Ballen! I appreciate the complement!

Tyguy wrote in post #18080281
Hey thanks Ballen! I appreciate the complement!

Well, I don't manage to give them out as much as I like, there are many deserving photogs here that are setting a very high mark to follow. I just find yours as a very fine example of where pushing the envelope might take you to the next level.
Besides, that looks like it was a lot of fun to do.

Yup, it was alot of fun. I would like to do more of these types of photos, but need to come up with something creative to do next...