Enorme, félicitation pour cette magnifique réalisation. J'avais commencé un projet similaire pendant le covid (voir mes vidéos), mais je ne l'ai pas abouti contrairement à toi
I still a few available. Please send me a mail freedom2000 at free.fr Or simply order them on PCBWay following the "shared project link" into my hackaday project
Un filtre ND aurait été sans aucun intérêt... Pourquoi traiter du flou de mouvement sur une cascade déjà naturellement floue ? Quant au dire polarisant oui mais juste sur la partie "mer" !
@@freedom2000I was looking for a 3d design to print when I found this. A friend just got his laser cutter and he is going to try this for me. Thanks for sharing.
Well... It's a trial and error process. You have to control voltage and current. And if course a constant speed. So basically one settings for one type of foam and one feedrate
I get that there are videos out there that show how to sharpen a knife but if you don't show that you're actually sharpening your knives in this video it makes me wonder if it really works or not. It seems like it would work pretty well, but there's no proof.
Hi, Yes you are right, there is no evidence that it works ! However any knife sharpener with fine grid diamond stones a fixed angle and no backlash will work... I didn't want to bore people with these long and annoying videos where you see the author sharpening a knife ! The most important for me is to show how it works (no backlash, almost 360° rotation, knife fixure, rotation of the knife, tuning of the angle...). Sharpening process is easily reproducible ! So trust me it works and it works really well !
Would it be possible to paint it with something reflective, or coat it in something reflective and mount a receiver to get this thing actually working You've dome most of the hardest work. Appreciate this version might be too small...but you wouldnt need to enlarge it too much before it might work i suspect!
No the antenna is way too small ! To capture s band or x band satellites you will need at least 3m antennas. And if you want very strong reception then 8 to 10m will be perfect !
Hi, Yes sure it could be possible ! Please tell me which one you precisely want. And go on talking by mail as I don't look at RU-vid often! freedom2000 at free.fr
I'm in end of stage with your project written on website. Can you please help me with writing the hex code, I'm unable to make a connection with the board and don't know how to troubleshoot the source of my problem. Thanks!
Hi, With a bare PIC you need a pickit3 programmer to flash the bootloader firmware. Then (but after this step) you will be able to upload new firmware using the bootlaoder .exe provided in my web site
@@freedom2000 wich type do u used sir? When used 2000ppr encorder better also sir? I ask on forum they said adc on stm32 beter than esp32. But for speed better esp32. So du u used adc esp32 for curent measure? Do u used inline or low side?
Congratulations on this wonderful project! I have a similar project in tests, but I use one or two Hall sensors. The results are identical. I positioned the sensors inside the case. Your solution is better. I want to test it. Question: how important is the centering, alignment, of the magnet between the axis and the sensor?
Maybe I'm late to the party, but even so, you opened a new path to me and gift me a powerful tool to develop helpful solutions. Merci beaucoup et a bientôt, j'espere. Liked, subscribed and belled!
Vey interesting project.. I see you only made several revolutions and one finish position. I have a need for an application that cuts gears. This would need multiple positions in one revolution. Potentially could this be used, would it be accurate enough with just the one position from the magnet per rev? John
Thanks for that. Is that per shaft rev of the worm or for the motor shaft itself? If it is of the motor shaft it would be 2048 * 36 = 73728 per rev of the worm shaft? (I am not sure of the gear to worm ratio as they are not usually quoted. I am assuming it would be 36) John @@freedom2000
Per shaft rev. Please read the description of this video and follow the link to the hackaday's project where everything is detailled. And if more questions don't hesitate
Very nice but I think you’ll need to mechanically recalibrate every time you loose track of the position as the armature will turn indefinitely in relation to the geared output position.
I don't exactly understand what you mean ? The armature is mechanically connected to the shaft via the encoder count. So no way to loose the track (please explain more)
@@freedom2000 I’m currently dealing with a similar design problem. If the position count is lost then it’s impossible to get the output to match the initial calibration. The encoder knows the exact position of the armature through 360 degrees but not how many times it needs to turn in order to get the output back if it looses count because of powering down the controller and restarting.
ok I understand your concern now ! Controller is based on an ESP32, it's easy to keep track of the current absolute position. So even after deepsleeping, when the ESP32 wakes up, the position is known. And as the wiper has a worm gear its impossible to move the shaft by the mechanical part. The only remaining problem is if you totally loose power (on ESP32 side) and during motion. Then the fimware can't recover and you'll have to recalibrate. What I do on my projects is to add a battery to secure power for the ESP32. (my weather station runs this way and has already restarted from deepsleep more thant 50000 times). So seems to be reliable ! Have a look at this project (source is open) : hackaday.io/project/191652-long-range-weather-station-65
There are cheap microcontrollers with solid state memory or SD-cards where you can store the count on the main loop or even using a timer. On wakeup, you can can check if the value is greater than 0 and set the value of the variable. And you can store -1 at the SD card every time you clear the reference position. Well I think so at first glance...
I feel like these wiper motors aren't that strong though for their size. I used to think they had really high torque but looked up specs on one and the torque was so low compared to a lot of dc motors of that size. What's cool though is you can put that encoder on any dc motor with a gearbox and create some insane servos. I remember not long ago any sort of high torque servo cost hundreds to thousands of dollars depending on size, and tbh they probably still do. Now with a few cheap parts and 3d printing we can make any size servo we want...not sure if many people realize the possibilities here. You can literally make a big super strong biped robot for ridiculously cheap lol especially if you are good at metal working or have a really big 3d printer.
@@freedom2000 I was wrong though about the torque they do have pretty good torque especially the Bosch ones. Did a bunch of research on it after I left that comment lol
