Tell us about yourself!
I'm glad you enjoyed it! :) You're right, the fit might be tricky and depends on the tolerances off your 3D printer... is better to know the tolerances beforehand.
Lemon Meringue Pie
This Is Not an Egg
St. Valentine's Fondant
It worked! Sort of... :)
Coffee-o-rama DoserView Instructable »
Lactose and Gluten Free Amaretti
Thanks Penolopy! :) I used SolidEdge.
16 pages that must be read and signed by the interested parties of course. Kids included... XD
Michelin Starred Risotto
Health and safety is fundamental, but you know... sometimes you win, sometimes you learn! :)
Don't trust me! It's a trap! :)
You're right, my girlfriend loves it! XD
STEEL BALL BEARINGS?? Well, at least they were easy to clean from the blood... :D
Clackers: the Toy of DoomView Instructable »
Thanks Penolopy! I owe you a coffee! :)
Coffee-o-matic DoserView Instructable »
DIY Bike Shed
Thanks for your feedback druševljan! Heat forming the bottle is indeed an interesting idea!
Plastic Bottle Dust MaskView Instructable »
Thanks jeanniel1! :)
Hi kymyst, yes I chose a 30 degrees angle at the apex and I didn't implement any adjustment mechanism to keep the whole thing as simple as possible: it's meant to be just a demonstrator. Gluing it to the board is not mandatory but it helps a lot while tracing the curves.
That's a good idea!
The Lost Art of the Conic Section Compass
Hi Ralphxyz, I agree, it is counterintuitive. It's easier to build one and try it! Let me know how it goes! :)
Thanks! I tried to keep it as simple as possible...
Thanks! Share it if you do! :)
thanks ronanry! :)
The Lost Art of the Conic Section CompassView Instructable »
Thank you! If you are obsessed with radiation you should check my other instructable about a 3D printed spinthariscope :)The glow-in-the-dark filament is very nice... but it would glow just a couple of hours and it needs "charging". And it's not nuclear! :D
Don't worry, nothing so tragic... but you are likely to generate a black hole./s:)
Thanks for pointing it out!
Programming a Micro:Bit Robot & Joystick:Bit Controller With MicroPython
Concrete Faux Bois Up-cycled Chair
Gold Cement Earring and Necklace
Thanks Omega0397! I think it's a good suggestion... I should give it a try...
yes I did! For the benefit of mankind as a whole! :o)...(ahem...)
Thanks! I also have a PhD, Chemical and Energy technologies. Even breaking the vial the risk caused by the tritium is negligible. You should be more worried of the broken glass :) Anyone is entitled to their own opinion of course...
Pewter Coins Casted in Cotton Putty Sand
Nuclear Switch LocatorView Instructable »
Thank you sir! :) The mechanism to reset it is called a de-coherer and usually it was a solenoid. A vibration motor will do just as fine I think!
Hi Sven, it's the multimeter's buzzer. After the spark the coherer is conductive and the multimeter's buzzer goes off.
Thanks! :) What do you mean with "modulator"?
you're welcome! :)
Hi James, the coherer is indeed a (cumbersome) latching switch. The dimensions could be lowered depending on the solution adopted. Anyway to get a reliable device you should experiment with filings size, wires distance at least. Other parameters influencing the behaviour are the filings composition (e.g. iron, zinc, copper or mixtures) and the use of a glass tube under vacuum for example...
Thanks for the tip!
great! post your images of you do! :)
Thanks Alex. I'm glad you like it! :)
3D Printed CohererView Instructable »
Thanks for the insight!
Thanks brianchadorourke! :) Share it if you do!
Hi almateus, the new version is more suitable to be used with a USB microscope. The scintillations are brighter using the scotch tape screen, but I don't know if a normal webcam is sensitive enough. Putting the scotch tape directly in contact with the CCD (powder side facing outwards) should do the job though...
I'm afraid I can't help... :)
Thanks for your comment! I added a "legal bit" section as well.
Hi RobertS770, the previous version used a reflection based fixed scintillation screen, while this version uses a transmission based adjustable scintillation screen. Compared to the previous version this one offers an increased scintillation rate, and the ability to set the distance between the source and the screen.
Thanks! :) Well... as long as the source is not ingested or touched with bare hands it should be pretty safe. But the better people to ask for info and authorization should be school's health and safety representatives. Every country has is own laws...
Pocket Size SpinthariscopeView Instructable »
Thanks indoorgeek! :)
Hi SteveM245, I would say not more than 10 USD if you make it at home... (servo excluded)
Hi Pedro, I'm afraid I don't have the eagle files anymore. But you can use the PDF files to make your own one, just remember to print them without scaling (1:1 I mean). Get them here:https://cdn.instructables.com/ORIG/FPN/6MDB/JMYWTA4Z/FPN6MDBJMYWTA4Z.zip
Thanks gm280! It's quite an old-school project indeed :)
Thanks! I hope so... You don't always need Arduino or Raspberry PI to have fun... :)
556 Servo DriverView Instructable »
Thanks! :) Smoke rings? Intersting! How would you implement it?