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I picked up a similar pizza/rotisserie set up a few years back for my Kettle and had a pretty rough time getting the temp up high enough. My piece even has a door to retain heat. So... a couple of questions... how much charcoal? Did you use a chimney to get it going? Did the wood pieces go on the same level as the charcoal, or on the rack with the pizza stone... I think that is what you are saying, I just need clarification. Good post and it looks like some nice pizza came out!

Makes sense... Just load it up huge with fuel! Thanks for replying, I will give it a shot soon.

I've been building this with my grade eight shop kids for a few years now, and I found an excellent option to a rubber band is one of those pull-out clip things for name tags. Rather than the pulling force of a rubber band, the spring-wound string just wraps around the vertical spinning dowel. It allows you to eliminate the bearing, hook...etc. It goes for 10 minutes easily. Mind you, your escapement is much nicer to demonstrate craftsmanship... it looks really well made!

Well done! Gaga ball is an awesome game... we use it with our middle school kids and as teachers, we love it because it is self-policing (usually)... kids that are not following rules or playing unfairly are usually eliminated pretty quickly. It is also great for kids of all sizes and abilities, little kids actually do well because the leg (target) area is small! Thanks for posting and if anyone is thinking about trying it, I would say it is an excellent add to any yard!

Well done! I make books with my grade 7 kids and the stitching is a major stumbling block. I might try this method next time. Excellent write-up!

Brilliant idea! A thought... you could use a 1/4 20 nut as a locknut against the washer to prevent accidental loosening. It would allow the ring bore to still be loose enough for movement but tight enough to not move.

I think a big part is establishing the bacterial culture with the fish so they don't die. Adding plants is a gradual process and no doubt loss will be a part of it! Sorry to hear it didn't work for you.

Tilapia are the idea fish in many ways. Tricky for people who live in BC, Canada because of the aquaculture laws and the cold winters. I would love to try them if i could get a source

I checked out the website... great idea. What are you using for sensors? Temp is easy, pH is available as well although ammonia, CO, etc is trickier for sure... is it arduino wifi based? The idea is really good and well timed as aquaculture/aquaponics is growing so fast!

Do you have an update? I'd be very interested to see how it is all coming along. I have been fiddling around with iAVS, or sandponics. Have you tried it?

Oh man that was almost 10 years ago! ... I think a bolt across the top wold be fine. You need to be careful to test your springs so they don't bottom, as you mentioned. You can find all sorts of types of motorcycle springs. I would combine them, maybe have the top spring be the much stiffer kind and have the bottom be more bouncy. Be careful. Springs and leaping up and down made me decide not to build them anymore... even though it was really fun seeing kids WAY in the air :-)

Excellent!!

Good thinking! Another thought might be to monitor the voltage from the Lipo battery... I think the threshold is about 3v but I'm not sure. Maybe a simple resistor divider circuit? I think its great that you are thinking of improving and working with what you have. Well done!

Nice, simple 'ible although I would suggest that you include some kind of way to monitor the battery discharge... they are ruined pretty easily by discharging too low.

I love this idea!!

Well done! I think I just may give this a go. Thanks so much for your excellent use of the English language; It was very clever!

Thanks so much!

I dont see why not... the sandals are pretty "open to interpretation" :-)

I totally agree!! I would love to see a very small system... desktop size. I think it would be perfect for a kitchen. I've seen a few commercial setups that are small although I really do doubt their efficacy.

I would really like to see your setup when you get it up and running. Using the ESP arduino setup is very simple; you can connect to wifi, which in turn, talks to Blynk. If you do a web search, you will find all sorts of great options.

This is excellent! I was wondering how you would separate the different growth points... from seed sprout to bigger plant, and you came up with a great solution using the inverted bottle... not only allows the plants nutrients but oxygen as well! Well done!

Excellent! Very complete, easy to follow and fun. It really makes me want to try Tinkercad!

Well done! I enjoyed your personal style of writing this Instructable!

Thanks so much!

😊

I've never heard that! Sounds like it might be a good idea. The only catch is that I have named the fish and they have kind of become my buddies...

For sure... Small systems need vigilance. Things can go sideways pretty quickly. Solar is a great option for sure. Your system looks good... using Arduino is excellent... I have a Blynk system with the ESP microcontroller for pushing out water and air temp. Modifying for Ph and water levels will be the next step... when I have time one day... not likely :-)

Love that website. It looks like a pretty easy print, too. I just might be firing up the 3D printer this weekend :-)

Thats a tricky question... it is a nightmare potentially. If things get way out of balance, what I have done is take out about 50% of the water and add new, clean water. If you can, add the water at the same temp and dechlorinate before adding. I had a leak the other day and the tank drained about 60% of the water... I put a hose in, monitored the temp, and added the correct about of chlorine treatment to the tank. NOT ideal, but so far the fish and plants seem fine with the abuse.

Wow! Living in a National Forest would be amazing, no doubt. It is quite a bit of work, potentially, and it is a family commitment if you want to go to a big level. Like anything, I suppose :-)

Sounds great! Good to hear that it it being done on a simple and practical scale with success!

Thanks so much for the kind words! Aquaponics is a great adventure for sure.

Great idea, and I admit, seeing your kids helping out is pretty cool.

Very well done 'ible. The detail is great and the concept is very well done! It has inspired me to try leather in my Glowforge. Not sure if you have yet, but GF has a user area that would really benefit from your work.

Excellent idea!! I'm building one for this weekend for sure.

Thanks so much for the excellent 'ible, Willy. It is well written, personal and concise. For sure this will go in my "lets build this just for fun" file.

Well done! I really like that you are using all of these extremely techie machines and in one layout shot you have a sharpie taped to a popsicle stick. Love it. Gotta keep one foot in the real world, right? :-)

Oh my, that really isn't the point, is it? :-)

All Sam is saying... if you don't mind me jumping in.. is to use one stencil (they are all the same shape...) and give it depth, so a piece the thickness of a piece of paper becomes a piece of wood, maybe 1-2" thick. Once you have that, just slice it into pieces like a loaf of bread. This could be pretty sketchy with a bandsaw so be sure to clamp the piece well before cutting.

Great solution! I think its an excellent hat. Good thing the Gnats can't count fingers... they might wonder if something is up...

Well done! I really like the simple design and lines. Your explanation was clear and easy to read as well. Maybe I missed it, but why did you use the thick layers of split for a mould? Would it be easier to use wood?

My Family is in the healthcare profession... an ER Nurse and GP Doctor. Covid19 is real. People are dying and it is contagious. I considered the idea of a conspiracy at first but that was knocked down when I talked with my two Nieces in the hospital. Thanks for making the mask! The idea is very good and technically, I love the idea!

I will echo what others are saying:1) wow, really, wow.2) Please, please, make a kit. I would buy a kit for the PCB and electronics in a flash. Many people here would do the programming and 3d parts but the PCB and parts sourcing would be a barrier for sure. Excellent job and seriously, let me know if you do this as a kit.

Two parts stood out for me... "a jolly good scrubbing" Is a phrase we never use in Canada but I wish we did. I think I might start saying it. The exhaust is a beautiful thing! I love it! What a great looking engine!

It can be a bit scary to do your first 'ible! You did a really good job with the pictures, examples and the clear steps. Well done!

I have three small bandsaws for about 26 kids. The lineup can get painful so I usually have a few things going at once, so if students are waiting, they have something else to do. I use the beeswax with mineral oil usually.

Well done! I will keep am eye out on the progress. I have used an old-school overhead projector to throw patterns onto wood for tracing and cutting out, rather than paper glued to the wood. Might be easier? Thanks for the 'ible and inspiration!

This would be great on a grill with charcoal... it reaches nice high temps pretty quickly. The bread maker you can find at most thrift and second hand stores. So many people buy bread machines with good intentions... Thanks for the great 'ible!

The poop is a fertilizer and the plants use the ammonia/nitrates... I think it’s the nitrates :-) it works really well. This is an excellent instructable, by the way! You can also find info at teachables.org... there is a system called barrel Aquaponics that works well.

WOW. Seriously well done 'ible. Nicely laid out, excellent inclusive language, great documentation and supporting diagrams. Video's clear and applicable; everything very well done. Thanks for sharing!

I've been teaching shop for 22 years and our school has a dedicated staff that works with kids with disability and mobility issues but it is often tough to put the two groups of kids together in a positive way. So often the mainstream kids are unsure about working with a kid who has a tough time communicating and the groups will move apart, even in the closed area of a shop. I am SO inspired and moved by the way you have so seamlessly integrated these kids in a collaborative space where differences are celebrated AND not even noticed at the same time. Beautiful!! Very well done, not only as a great 'ible but a clear visual of what education can look like when the right people decide to do it. Thanks so much!!

A part of the process you didn't mention is using worms in the grow media to help build the system. What do you do instead of them or are they needed, in your opinion?

really excellent 'ible. Your writing style is interesting and personable and very thorough! Thanks! Voted!

I love Instructables. This is THE coolest project.

I have to chime in as well and say thanks for posting a "destructable". It really is good to hear how other people have messed up and still didn't quit. Well done! I think the finished product looks great!

Well done! Thanks for elaborating on the process of how the flash illuminates individual drops... giving the illusion of stopping in the air. I wondered how you would describe that and it was very clear!

Excellent 'ible! Clear, well documented and well shot. Thanks!

Well done! I really like the double sided tape idea. You might also like the Selig Z-Chair design of the same era. Thanks for such a comprehensive post!

While I agree that I personally may not use this, I can be constructive and kind. For example, rather than saying it is "useless" please try to see that the problem is that YOU might not be able to understand the point. Getting on his case by nit-picking small details, that frankly are not very accurate or helpful, is not the point of Instructables. Please take a minute to understand the point of this resource, which is to learn and share. If you want to make specific comments that are constructive, go for it. To be rude and obnoxious is not welcome here and would be better on other resources; not Instructables.

well done! Thanks for posting. I would really like to build this for my shop classroom.

Bear in mind that Instructables has a "be nice" policy. I think we can agree that this is not a rocket stove as such but please remember to be constructive in your comments.

That is a great idea! Nice and simple and easy to do with a group of students. Next time I do the project, i will give it a try.

I have trie a few of your projects over the years and am pretty much the same type of person so I have to admit your lifestyle choice and change is pretty inspirational! Thanks again for a very cool 'ible.

Well done! I build these with my students after seeing kalimbes while I lived in Rwanda. I really like how you have used all sorts of different materials. Your way of fastening the crossbar is very much like how it was done in Africa. You might try using steel that is not high carbon, like tool or spring steel by bashing it with a hammer until it flattens. This tends to harden the material and turn it into great tines. Thanks again for the great 'ible!

The list so far is pretty impressive! I am always thinking in terms of making 60-70 projects so I always buy in quantity. The plumbers snake idea is really brilliant though! I think next time I will send out the students to see what they can find.

This is an exceptional 'ible. Here's why. It is well written, clear and amusing. It has lots of pictures. The steps are well laid-out and defined. Great job! My 15 year old daughter is into photography and we tried some water balloon popping which turned out okay but this 'ible will be the project this week! Well done!!

It is a good idea, nice and simple and effective but I have to agree with robweeve... it actually is a conventional stove, not a rocket stove. I built a rocket stove and a handful of fuel would last for 25 minutes and make a VERY intense, blue flame. Having said that, this is a nice, simple and usable stove!

Excellent! I will try this out for sure. Thanks for such a well-written and comprehensive 'ible.

Well done! Excellent tutorial.

Thanks! Great 'ible. I read it through just for amusement... your writing is very entertaining!

Heres another version I did a while back...https://www.instructables.com/A-Wire-Maze-With-an-Electronics-Twist/

Very well done. Your English was fine!

Well done! I think this would be a great project to do with a tech metal class. If I do it I will send a set of pics your way if you are interested.

Well done! I appreciate that you are willing to document your mistakes... sometimes I think I am the only one who does something goofy. The ring looks great! There must be a way to jig the dino poop in place while drilling the second, larger hole and prevent breakage?Well done!

Great job! I think I might try it with my woodworking class. Excellent details with the 'ible. A small side note... I know that it means less control; but what about using a pushstick or cutting jig with the bandsaw cuts? I watched the video thinking it would be great to show to a class but wow man, I worry about your fingers. Can't show that to a group of kids or I will have a few rides to the hospital with students. :-)

wwwwaaaaaa????THAT is impressive! Love it.

I will do this with my grade 7 woodworking class! Very nice 'Ible!

Nice and simple! I like the idea of trapping the bearing between the pieces of angle iron. What about adjustability for bearing tension? Offset bearing bolt maybe...?

there is a version of the useless machine that uses an arduino with all sorts of different ways of hitting the switch... a slow, prolonged one, a version where it shoots out really fast, one where it fakes you out. pretty cool. This one is excellent though, because it uses a 555 which is great! nice thinking "outside the box" sorry. had to use that.

It is a lovely amp. Well made and I am sure it sounds great. My only criticism is that Instructables is about providing the info to allow others to build something. If you could post a detailed process or schematic this would be an excellent 'ible and I would build it for sure!

Well done! I agree with people who are commenting that it is a trick and not a puzzle but really, that doesn't matter. Its an excellent 'ible, well laid out and clever. Thanks! BTW... just as a warning... using a router with a small round disk is pretty risky. Perhaps come up with a jig using the holes to stabilize the disk and stop it from spinning by accident?

As a fellow contest winner I must say your instructable deserved the Grand Prize. Well done!!

Well done!!

Excellent idea!!