pink witch lily 🏳️⚧️
Andy Kaplan-MyrthDigital sundial
The 3d printed plastic might melt in the sun — will see!
Monica Rooney@andykm please report back. It’s very cool.
Nicholas Weaver@andykm Probably not, PLA doesn't soften until near boiling temperature, and it was printed in a lighter color.
@andykm However, the designer recommends using ABS which is higher temperature and won't melt in the sun.
Jan Antoš
Jasper 🍉@janantos @ncweaver @andykm i printed butterfly wings which i attached with metal wire.. and it must have been outside here for at least 5 years, partial shade, probably little shade in winter. I don't see/feel difference in material property.
Similarly the biodegradability is.. very slow at best. Hopefully as microplastics in the water the hypothetical biodegradability is better...
Gorobar@ncweaver @andykm PLA will not really melt until about 180°C, but it will get soft from about 50°C (the exact values ofc depending on make and brand, bit it's in that region). Generally not advised for any kind of outdoor use.
I once tried to print the model in PETG, but the stringing made it not work at all.
Bitcoin Wallet Inspector@andykm if you use PETG it'll be fine. I print functional parts that have to live outside for years on end and I've never had trouble
British Tech Guru@andykm Inventive. I like it.
Atomic FoxWarping is much more likely than melting. And with that kind of fine detail, a little warping would be enough to make it not work.
For those asking, my son printed it for me from this model that I’ve pined for on and off for years! No idea what printer he used — whatever his university’s library has: https://www.thingiverse.com/thing:1068443
Digital Sundial by Mojoptix
The episode in [ENGLISH]: http://www.mojoptix.com/?p=108L'épisode en [FRANCAIS]: http://www.mojoptix.com/?p=75Note: To see more inventions and contraptions, suscribe to Mojoptix on Youtube ![ ENGLISH ]Tadam !A Sundial displaying the time inside its shadow, with actual digits ! There is a tiny bit of magic inside...No batteries, no motor, no electronics... It's all just a really super-fancy shadow show. The shape of the sundial has been mathematically designed to only let through the right sunrays at the right time/angle. This allows to display the actual time with sunlit digits inside the sundial's shadow.The sundial displays time (with actual digits !!) from 10:00 until 16:00, updating every 20 minutes.You can precisely adjust the displayed time simply by rotating the gnomon (the magic box that displays time). So you can even adjust for Daylight Saving Time.You'll also need :--- an (empty !) jam jar--- 3x M6 screws, flat head, length = 20 mm--- 1x M6 screw, flat head, length = 50 mm--- 4x M6 nuts--- 4x M6 washer, outside diameter < 14mm[ FRANCAIS ]Tadam !Un cadran solaire qui affiche l'heure dans son ombre avec des vrais chiffres ! C'est un peu magique.Sans piles, sans moteur, sans électronique, etc... Il s'agit juste d'ombres chinoises très compliquées. La forme du cadran solaire a mathématiquement conçue pour laisser passer uniquement les bons rayons du soleil au bon moment/angle. Cela permet d'afficher l'heure en chiffres lumineux à l’intérieur de l'ombre du cadran solaire.Le cadran solaire affiche l'heure (avec des vrais chiffres !!) de 10:00 a 16:00 toutes les 20 minutes.On peut ajuster l'heure en tournant le gnomon (la boite magique qui affiche l'heure) sur lui même, par exemple pour passer de l'heure d'été à l'heure d'hivers.Vous aurez aussi besoin de :--- un pot de confiture (vide !)--- 3x vis de taille M6, a tete plate, longueur = 20 mm--- 1x vis de taille M6, a tete plate, longueur = 50 mm--- 4x boulon de taille M6--- 4x rondelles de taille M6 diametre exterieur < 14mmTimelapse: https://www.youtube.com/watch?v=EoGVb82uCnAA Quick Note (15 february 2020)I have recently received a lot of messages regarding random online shops selling this Digital Sundial.First of all, I only sell Digital Sundials via my Etsy shop: mojoptix.etsy.com. I am not affiliated with any other online sellers of Digital Sundials.However I very specifically chose the Creative Commons - Attribution license for the Digital Sundial. It basically means two things:-- Anyone can make, modify and even sell Digital Sundials.I am actually 100% happy with other people selling Digital Sundials. I am obviously the happiest when people choose to buy from my Etsy shop, but I still feel it's quite exciting to help other makers use their craft to raise some pocket money.-- There is just single requirement: you should give appropriate credit.One way to do that is to simply mention "Mojoptix" as the original creator/inventor and add just one single link to either: this Thingiverse webpage, or the Youtube video, or my Youtube channel, or my website.The bottom line:If you ever come across a webpage selling Digital Sundials (on Etsy, Amazon, Ebay, Kickstarter....) without mentioning "Mojoptix" as the original inventor: feel free to send them a friendly message to remind them how to give appropriate credit. Maybe they just forgot. The different files for the GnomonFor those who have trouble slicing the gnomon, I ran the files through netfabb and re-uploaded them as:-- Gnomon_Southern_NETFABBED.stl-- Gnomon_Northen_NETFABBED.stlLet me know in the comments if they don't still behave nicely with your slicer.If you wish to print the gnomon in two halves :-- Gnomon_Northen_half_1_of_2.STL-- Gnomon_Northen_half_1_of_2.STLThey should fit on a 100x100 platform. (Thanks Zarlor for building these two files and fixing them ! )You will then need to glue these 2 parts together.Print settings[ ENGLISH ]Use ABS !!!!It is something you'll want to leave under the sun, outside: PLA will deform under the sun heat. And some PLA biodegrade faster than others when left outside.The inside of the gnomon is a fairly complex switch cheese. You should aim to print the gnomon with 0.1 mm layers or thinner. Otherwise it will most likely have some errors in the digits displayed.The other parts can be printed with thicker layers.Note: Print only the gnomon corresponding to your hemisphere: Northen / Southern.[ FRANCAIS ]Utiliser de l'ABS !!!C'est quelque chose que vous allez laisser dehors, au soleil: des pieces en PLA vont se deformer sous la chaleur du soleil. De plus certains PLA sont plus rapidement biodégradables que d'autres...L’intérieur du gnomon est un gruyère carrément compliqué. Essayez d'imprimez le gnomon avec des couches de 0.1mm ou mieux. Sinon les chiffres ne s'afficheront pas toujours correctement.Les autres pièces peuvent être imprimées avec des couches plus épaisses.Note: n'imprimez que le gnomon correspondant a votre hemisphere ('Northen' pour hémisphère nord, et 'Southern' pour l'hémisphère sud).Post-Printing[ ENGLISH ]Don't forget to remove the breakable support material on the 'bottom part' (the two thin half cylinder inside).To get the brighest display, try to set the angle between the ground and the gnomon equal to:-- in spring and summer: your latitude - 10°-- in fall and winter: your latitude + 10°You can fine tune the time displayed by rotation the gnomon around the top-most screw, for example to adjust for Daylight Saving Time.[ FRANCAIS ]N'oubliez pas d'enlever la structure de support sur la pièce 'bottom part' (le couvercle): il faut casser les deux (très fins) demi-cylindres a l’intérieur de la pièce.Pour un affichage optimal, inclinez le gnomon tel que l'angle entre le sol et le gnomon soit égal à:-- printemps et été: latitude - 10°-- automne et hivers: latitude + 10°Vous pouvez ajuster précisément l'heure en faire tourner le gnomon sur lui-même, par exemple pour passer de l'heure d'été a l'heure d'hivers.
Luke
Felis Cat
Ged|Net
Nartagnan ⏚
Darren du Nord@andykm What sorcery is this?!
John "John Davies" Davies ☑️@andykm Now that is ingenious!
coldclimate@andykm amazing!
RifkaFox
Michael@andykm that’s pretty cool!
0x10f/kalle/qalle@andykm Natural light imitating artificial light.
@0x10f I can’t decide if this is the same or the opposite of skeuomorphism
Natik Gadzhi@andykm @DaveMWilburn wow, that’s rad.
JulieB
Larry H@andykm The filament related to ABS called ASA is often used for outdoor applications.
Allan Chow@andykm a bwaaaaaaaah!?
ADHDeanASL@andykm The irony of using 3D printing for this is superb
Joe 📷 🖖🤨@andykm Clever!
Jona Joachim
Wendy Nather@andykm @paul_ipv6 I have to admire this level of wrong
Fubaroque@andykm Sweet! Is it on the thingiverse or somewhere else online?
(Already saw the answer, sorry for asking again.) 🤭
🌈 breaking ranks.@andykm wow this is an amazing "technique" to capture time <3!!
jsnidal
Stefan@andykm oh shit amazing!
Mark Beekhuis@andykm Does it handle summer- and winter-time?
@MarkBeekhuis Yes I think it does! You change the angle of the arm so the sun shines through the fins and it keeps working. But it doesn’t adjust for daylight savings obvs — it’s only as accurate to society’s time as any sundial
Casper 👻
Jesse Atkinson
Paul Westbrook
Noxy 🐾🏳️🌈
Simon Brooke@andykm That is an extremely cool idea!
Somewhat similar to this one?
Digital Sundial by Mojoptix
The episode in [ENGLISH]: http://www.mojoptix.com/?p=108L'épisode en [FRANCAIS]: http://www.mojoptix.com/?p=75Note: To see more inventions and contraptions, suscribe to Mojoptix on Youtube ![ ENGLISH ]Tadam !A Sundial displaying the time inside its shadow, with actual digits ! There is a tiny bit of magic inside...No batteries, no motor, no electronics... It's all just a really super-fancy shadow show. The shape of the sundial has been mathematically designed to only let through the right sunrays at the right time/angle. This allows to display the actual time with sunlit digits inside the sundial's shadow.The sundial displays time (with actual digits !!) from 10:00 until 16:00, updating every 20 minutes.You can precisely adjust the displayed time simply by rotating the gnomon (the magic box that displays time). So you can even adjust for Daylight Saving Time.You'll also need :--- an (empty !) jam jar--- 3x M6 screws, flat head, length = 20 mm--- 1x M6 screw, flat head, length = 50 mm--- 4x M6 nuts--- 4x M6 washer, outside diameter < 14mm[ FRANCAIS ]Tadam !Un cadran solaire qui affiche l'heure dans son ombre avec des vrais chiffres ! C'est un peu magique.Sans piles, sans moteur, sans électronique, etc... Il s'agit juste d'ombres chinoises très compliquées. La forme du cadran solaire a mathématiquement conçue pour laisser passer uniquement les bons rayons du soleil au bon moment/angle. Cela permet d'afficher l'heure en chiffres lumineux à l’intérieur de l'ombre du cadran solaire.Le cadran solaire affiche l'heure (avec des vrais chiffres !!) de 10:00 a 16:00 toutes les 20 minutes.On peut ajuster l'heure en tournant le gnomon (la boite magique qui affiche l'heure) sur lui même, par exemple pour passer de l'heure d'été à l'heure d'hivers.Vous aurez aussi besoin de :--- un pot de confiture (vide !)--- 3x vis de taille M6, a tete plate, longueur = 20 mm--- 1x vis de taille M6, a tete plate, longueur = 50 mm--- 4x boulon de taille M6--- 4x rondelles de taille M6 diametre exterieur < 14mmTimelapse: https://www.youtube.com/watch?v=EoGVb82uCnAA Quick Note (15 february 2020)I have recently received a lot of messages regarding random online shops selling this Digital Sundial.First of all, I only sell Digital Sundials via my Etsy shop: mojoptix.etsy.com. I am not affiliated with any other online sellers of Digital Sundials.However I very specifically chose the Creative Commons - Attribution license for the Digital Sundial. It basically means two things:-- Anyone can make, modify and even sell Digital Sundials.I am actually 100% happy with other people selling Digital Sundials. I am obviously the happiest when people choose to buy from my Etsy shop, but I still feel it's quite exciting to help other makers use their craft to raise some pocket money.-- There is just single requirement: you should give appropriate credit.One way to do that is to simply mention "Mojoptix" as the original creator/inventor and add just one single link to either: this Thingiverse webpage, or the Youtube video, or my Youtube channel, or my website.The bottom line:If you ever come across a webpage selling Digital Sundials (on Etsy, Amazon, Ebay, Kickstarter....) without mentioning "Mojoptix" as the original inventor: feel free to send them a friendly message to remind them how to give appropriate credit. Maybe they just forgot. The different files for the GnomonFor those who have trouble slicing the gnomon, I ran the files through netfabb and re-uploaded them as:-- Gnomon_Southern_NETFABBED.stl-- Gnomon_Northen_NETFABBED.stlLet me know in the comments if they don't still behave nicely with your slicer.If you wish to print the gnomon in two halves :-- Gnomon_Northen_half_1_of_2.STL-- Gnomon_Northen_half_1_of_2.STLThey should fit on a 100x100 platform. (Thanks Zarlor for building these two files and fixing them ! )You will then need to glue these 2 parts together.Print settings[ ENGLISH ]Use ABS !!!!It is something you'll want to leave under the sun, outside: PLA will deform under the sun heat. And some PLA biodegrade faster than others when left outside.The inside of the gnomon is a fairly complex switch cheese. You should aim to print the gnomon with 0.1 mm layers or thinner. Otherwise it will most likely have some errors in the digits displayed.The other parts can be printed with thicker layers.Note: Print only the gnomon corresponding to your hemisphere: Northen / Southern.[ FRANCAIS ]Utiliser de l'ABS !!!C'est quelque chose que vous allez laisser dehors, au soleil: des pieces en PLA vont se deformer sous la chaleur du soleil. De plus certains PLA sont plus rapidement biodégradables que d'autres...L’intérieur du gnomon est un gruyère carrément compliqué. Essayez d'imprimez le gnomon avec des couches de 0.1mm ou mieux. Sinon les chiffres ne s'afficheront pas toujours correctement.Les autres pièces peuvent être imprimées avec des couches plus épaisses.Note: n'imprimez que le gnomon correspondant a votre hemisphere ('Northen' pour hémisphère nord, et 'Southern' pour l'hémisphère sud).Post-Printing[ ENGLISH ]Don't forget to remove the breakable support material on the 'bottom part' (the two thin half cylinder inside).To get the brighest display, try to set the angle between the ground and the gnomon equal to:-- in spring and summer: your latitude - 10°-- in fall and winter: your latitude + 10°You can fine tune the time displayed by rotation the gnomon around the top-most screw, for example to adjust for Daylight Saving Time.[ FRANCAIS ]N'oubliez pas d'enlever la structure de support sur la pièce 'bottom part' (le couvercle): il faut casser les deux (très fins) demi-cylindres a l’intérieur de la pièce.Pour un affichage optimal, inclinez le gnomon tel que l'angle entre le sol et le gnomon soit égal à:-- printemps et été: latitude - 10°-- automne et hivers: latitude + 10°Vous pouvez ajuster précisément l'heure en faire tourner le gnomon sur lui-même, par exemple pour passer de l'heure d'été a l'heure d'hivers.
Henryk Wójtowicz@andykm it looks great!
Starry@andykm is it a 12 or 24-hour clock?
AidanK 🇵🇸🏳️🌈🏳️⚧️
Eugen 
@andykm I’ve added this thing to my “print someday” collection on Thingiverse a few years ago… Maybe it’s time to try it finally 😅
Thorwegian (old account)@andykm whenever i see this, i always wonder about time zones. i suppose you could just tilt it N degrees away from the sun's azimuth to correct for the disparity between sun time and clock time.
Zimmie
clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛
John Breen@andykm Awesome !
I wonder if this was developed using a variation of Karnaugh Map Minimization, applied to boolean optics.
I wonder if this was developed using a variation of Karnaugh Map Minimization, applied to boolean optics.
magicmarcy@andykm Wohooooo... shut up and take my money!!!! 😂