How To Make Prototypes: Jeremy Fielding #100

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  1. Jeremy Fielding

    Thank you so much for joining me on the journey. I promised a link to my company website. Here you go!

  2. TheRainHarvester

    How much was that adhesive and shipping?

  3. No no, thank you Mr Fielding, especially for your proof of concept and brilliant idea's !

  4. Wonderful Jeremy 🙂

  5. So this thing will use something like a 9FP ? As i suspect you need cm precision? Keep in mind to store the coordinates as doubles else you will have huge amounts of fun.

  6. Muhammad Samin Hasan

    what are those motors?

  7. Love your content, Jeremy! I'll second comments re. moving the inverter, particularly mounting it upright… most inverters and VFDs require vertical positioning of the heat sink, so that convection flows heat out of the envelope… but my preference would be to nix the inverter, as the conversion is a substantially loss in efficiency, extra complexity, and a space hog that'd be better home to a second 5'er of paint. My gut says that the setup you have might be overkill for putting down field stripes. I don't think you really need that kind of pressure to get a good stripe on turf. Instead, mebbie a little DC-driven piston pump feeding a nozzle more down the lines of an agricultural chem spray tip… cheap, easily replaceable, extremely adaptable, and if you need more material down, you could stagger an array of several with overlap. I'd also think that putting the nozzles directly between the drive wheels, and directly under the GPS would eliminate the need to calculate any offsets to get precise placement… Nice dive, btw!

  8. evilcanofdrpepper

    Yeah, using the right glue can make the difference between success or failure. Learning about all the modern adhesives that are available and what their strong points and weak points are makes fixing just about anything possible.

  9. Joseph Melnick

    Jeremy, I admire you and your work so much.

    I'm really, REALLY happy that you share your design process, and the things you learned along the way, INCLUDING THE FAILURES and re-designs!!!

    No one gets it right the first time (all the time). LEARNING about WHY an initial design failed or could be better is KEY to improvement, iteration upon iteration! You are unabashed about learning from mistakes or inefficiencies and sharing that valuable lesson with others.

    You are an up-front, honest man, and I admire your fortitude and desire to better yourself and your designs. Kudos, dude!

  10. I’m really glad you’re sponsored by an adhesives company. I would not have thought to use it for projects, but they solve for the biggest barrier – knowing which one to choose. Would be interested to see what their international support is like eg Australia?

  11. I laughed so hard at 11:30 – sudden stop. Keep up with the great video's! I love learning. You may not think you are a genius, but in that case to me you are just really super smart!!!

  12. I'd love to see you develop an automated coconut palm tree frond trimmer and coconut harvester. It's been on my mind for years. I have a lot of ideas for it.

  13. the welds are too far up on 1 side . it needs to centered. between both parts.

  14. Bill Weissborn

    Ya know, Jeremy. I don't even have to watch the whole video(s) you post. I just automatically give them a "thumbs up". (Hope that doesn't screw up your analytics.)

  15. if that paint pump is a 120V universal motor (which it likely is), it will happily work on 60-ish volt DC (3 20V powertool batteries) with twice the current…just the switch might not be rated for DC…no need for the huge inverter and losses that it comes with

  16. Love your videos.
    Have you considered making a video about the recent interest in combining a motor and generator to produce free electrical power?
    I've seen several videos on this topic but, I don't really trust these unknown guys.
    However, I trust you to give us the real facts on this topic.
    Thank you for providing great content for those of us who enjoy learning new skills.

  17. YouTube Algo won today. Sub'd. This video is really interesting, and look forward to the rest of this particular series. I'll be running through some of your other videos soon at some point. I don't have near enough equipment or room to do anything beyond working with some basic hand power tools, and my "specialization" is more into computers than it is constructing things, but that hasn't stopped me from designing some basic shelving for my model cars, or, playing with CAD to do some designs to 3D print.

  18. Thanks Jeremy. You're probably one of the best engineering teachers I've ever seen and your videos are always excellent quality. Well done. Much respect. I love how you involve your kids.

  19. Thnx for your times and Vids 🙂 .
    what motor driver did you use?

  20. capnthepeafarmer

    Good on you for sharing failures!! I know I've mentioned this before, but I LOVE to fail. Failing at something has taught me more about doing better the next go around. I design industrial equipment and cardboard prototypes, fail fast prototypes, 3D prints are invaluable. It's easy as an engineer to get into optimizing the wrong variable too soon and spending too many resources on a design. That's another reason why I love failure and prototypes. If you have a prototype that you haven't invested a lot of time into you're able to beat it up, break it, try to fix it, work on it, etc and gain so much insight into your design!

  21. Really putting the "Fielding" in "Jeremy Fielding"

  22. Saftiges Früchtchen

    Thanks, the thing about pride resonated with me.

  23. Did you consider trying a small diaphragm pump and nozzle as would be used with agricultural spraying? A small DC pump would be much less expensive / more efficient and eliminate the need for the inverter. The only reason this might not work is the viscosity of your paint, but perhaps an email to a company like TeeJet could offer some suggestions there.

  24. what was up with the bench on top of the prototype at 0:47. that was neat 🙂

  25. Thanks for sharing your mistake. Part of process improvement is to share mistakes so others don't commit them. In fact, Toyota workers us a bulletin board where they post their mistakes for others to see. The problem with us Americans is that we have too much pride and would rather hide our mistakes than let others know we had a moment of weakness. If you have a team that get past the 5 dysfunctions then you will have people who are not afraid to be vulnerable and share mistakes. It's really an interesting lesson in behavioral science.

  26. What is your plan for localization? GPS, RTK GPS, ultawideband, or some type of visual localization?

  27. Thanks so much for posting all your knowledge and experiences for other to learn from, including my 11 year old who’s been watching you for several years now. He’s working on an invention, and is interested in the motors you used to drive the wheels? Thanks again and keep the great work!

  28. The laugh when you pitched off the front after sudden deceleration was infectious. Glad you weren’t hurt!

  29. Get yourself a chunk of copper to put behind your aluminum welds. It'll keep it cool and the weld won't stick to the copper.

  30. Can you link to a reliable supplier of drive motors, gears, and wheels like the ones you used in this project? Salvage is ok for one-offs, but I'd like to be able to buy a few from stock with identical specs. Thanks for all you have shared.

  31. Muhammed Ismail

    Very inspiring

  32. If you never fail, you never truly learn! If you never truly learn, you will never truly succeed!

  33. I don't screw up; I screw down, letting gravity do most of the work for me.

  34. Thank you so much for showing the revisions (mistakes). Too often videos just show the perfect implementation of perfect part. The end result always is a trail of error before the final form. Thanks for sharing with us.

  35. Oliver Johansson

    11:24 that is exactly why I dislike using worm drives for wheeled robots, decelerating with them is hard.

  36. and how about you actually get the robot arm working? been checking in for months and nothing.
    if I wanted to see a guy jumping between projects without ever finishing anything, I'd go look in the mirror

  37. Doesn't seem like that difficult to solve, just make a tub for the pump to sit in.

  38. You came SO close to destroying your knees when you rode that machine. Please stay healthy so I can see more of your stuff. I'm subscribing with the bell. Good work sir! 😀

  39. Awesome content as always. Best of luck!

  40. Nikolay Stankov

    Not sure if anyone suggested it but what if you turn the inverter 90 degrees and mount it so the display faces forward instead of up .Sfter this mout the paint sprayer next to it and get a square bucket 🙂 Just a tought.

  41. liked it, what if you raised the inverter above paint supply like that fly little prototype?
    plant alotta crops with a 'hidden' door under it.

  42. Edward Mitchell

    I hear you on not being able to notice some mistakes until you are holding the prototype in your hands and putting it together. In AutoCAD I thought I had only two minor mistakes but after I built it I found two more, and later on I found a big mistake that cause me to scrape the prototype and start over with new and different parts. I was designing a transformer and that big mistake was I didn't actually measure the wire size and just went by what the manufacture wrote on their site. One wire in question was said to be 0.0060" and when I got it in the actual measurement was 0.0075" needless to say that small difference caused me to scrap the entire bobbin set and also get another size transformer core. Basically I designed for 16 turns per layer but when I went to wind it up I only got 12 turns per layer because I didn't take hands on measurements of the items I was going to be using.
    You are so correct in that you have to put pride aside and admit you where wrong and/or made a mistake as if you lie to yourself on technologies like I work on forever will the solution be out of your reach. I know a guy who lie to me and himself and he hasn't moved forwards one bit on the technology for several years while I am now moving to implement the technology into our everyday lives having solved most of the science behind the technology.

  43. I love your channel and it is great for you and us. Your truth is transparency and I have the utmost respect for your actions sir.

  44. Jeff Benefield

    (Fabricator/welder here.) Put the pump on a pivoting arm suspended above the bucket. Incorporate the GPS receiver pole into the pump mount. They pump doesn't have to be 100% stable. Definitely need a splash guard over the electrical system.(plastic) Butt the angle iron to the square tubing. Coping is time consuming and not any more structurally sound. An experienced aluminum welder can weld that 11 gauge with a mig. Mig is cheaper manufacturing costs.. or you might upgrade the material to make it "mig-able". You could save some weight by going with smaller angle on the rear as it looks like a little overkill. (Solidworks will do LOVE that you included you riding it. (And dumping yourself.) Osha does NOT approve. LOL Aren't the hydraulics a little fast? You can't stripe a football field at that speed, can you? That might save some weight/batterypower and costs… Eventually, wouldn't you want to install precise positioning transmitters and not rely on gps? 3 or 4 manually placed transmitters at known positions would be more accurate. Would be better when you start using it to lay out footprints of a building foundation with electrical, water, and waste lines. I LOVED the video. Its easy for me to be a Monday morning quarterback. Good luck with Mission Driven Robotics!

  45. you have some watertight electrical boxes for the eclectronics i would put the inverter in the tapered part and the pvc boxes can be accessible hanged in front outside

  46. Jimmy Favereau

    yes sir! thee BEST videos include the 'fails' , the lesson IS in the fail : ) Be Blessed Jeremy !

  47. Thank you for showing the mistakes and all, it actually makes your expertise more relatable to us less-experienced folks. I'd really love to know your source for the drive motors, since you are looking to end up with a lower price point and probably found a great deal on them…

  48. Hi Jeremy, what was the cardboard I beam? Where did you find it. Really interested in that but can't find anything on them in doing a search online. Great videos as always.

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