Video

Hi, you are correct you can read printer api data from. 192.168.100.xx/api/v1/status data is formatted JSON, so you can parse it and use how you like. You can use use this python code to read data from prusa using computer: import requests from requests.auth import HTTPDigestAuth import json import time URL = '192.168.xx.xx/api/v1/status' USERNAME = 'maker' PASSWORD = 'xxxxxxxxxxxxxxxxxxxx' while True: try: response = requests.get(URL, auth=HTTPDigestAuth(USERNAME, PASSWORD)) if response.status_code == 200: try: data = json.loads(response.text) print(json.dumps(data, indent=4)) except ValueError: print("Response content is not in JSON format.") print("Response content:", response.content) else: print(f"Request failed with status code {response.status_code}") except requests.exceptions.RequestException as e: print(f"An error occurred: {e}") time.sleep(2)

@@simplecad7462 Dude! Thank you for an awesome starting point here. I know what my next project is.

Pictures are saved on phone. You can try it, if android is too old it might not be able to save pictures because of android permission rules.

First you have to setup Prusa wifi normally and make sure you can connect printer from web browser. Setup custom g code as seen in the video, this works as trigger for taking picture. Then use app to connect printer

Hi, Its Autodesk Fusion. Here is video of creating this board : czcams.com/video/brbP9cOgVEM/video.htmlsi=fct1aiHe1tTUJGW0

I think you are correct. I will probably try multi stage coilgun next

@@simplecad7462 Don't quote me on this, but for coil gun application I think cone shaped coils may better overall than perfect cylinder - coils.

Hi, i have currently done closed loop using encoder. I am probably adding zero crossing detection to next version so it can read BEMF and use that to spin motor in open loop. I am also trying to make current sense circuit better and maybe try if it could detect motor position using HFI

Surely! See also: New portable Power full Coilgun: czcams.com/video/-mjDqp_oWZk/video.html czcams.com/video/rclLsQ9nyeg/video.html Apocalypse coilgun, Fallout Coilgun: czcams.com/video/G9-jKWPyMFo/video.html

​@@howtomakeacoilgunoffallout4096👍👍Amazing!

@@howardstark6707 Thank you for rating Bro🤝

Magnets were alternating, north south north sourth.. Total 4 north and 4 south

You can run it without encoder(sensorless). Yes motor profiler measures motor id,iq,bemf etc. These parameters are needed for FOC algorithm.

@@simplecad7462 but i dont know the pole and sm or i pmsm motor sir of my pmsm motor,

@@botak333 Where you got your motor?

@@simplecad7462 from ex of cnc sir, but i dont get the data sheet about the pole, vut for ld, lq, i have, i dont get the driver also

@@botak333Sorry can't help. Motor pilot is used to measure parameters, you have to know more about the motor.

Nice, sounds cool =) Do you mean like one stator with double rotor design?

@@simplecad7462 Yeah czcams.com/users/shorts6rE4eymdct0?si=z67rgiSYKOxTD6PQ

Hi, Great to hear you're interested in this project. I'm currently uploading all schematics and manufacturing files to my Patreon page. You can find them here: www.patreon.com/SimpleCAD Thanks in advance!

Hi, magnets are from aliexpress. This is product link i bought: www.aliexpress.com/item/1005006138947935.html

Thank you@@simplecad7462 Very impressive projects you do on your channel.

Hi, it is this from thinginverse: www.thingiverse.com/thing:2194278 I modified it little bit so there is embedded magnets and it can be attached to metal enclosure.

Very cool, thank you! I'm going to try this out. I'll let you know how it goes.

@@simplecad7462 This entire setup works excellent! Thanks for sharing! Working on Motorola One Action w/ Android 10

@@IdahoDualSport Great to hear it works!

Hi, Currently it is holding there just by gravity. This is test setup for my hub motor project

Thanks :D Yeah its making that cool sound, pwm frequency was about 10khz in that video which is making that sound.

Thanks. I am creating new coilgun using esp32 and custom circuit.

Thanks! Fastest comment ever :D

Thanks! Let me know how it works for you, i have currently tested it only on Galaxy S21 and Android 13.0 . Some older phones with older android might have some issues.

Hi, I can try to make more detailed video of design in a few months, i am quite busy with electronic design atm..

Hi! I am not sure if it is possible to share complete electronic component, but here is link for 3D model. a360.co/3UO2uEM

Thanks, Nice to hear! TMC board uses SPI+UART protocols. For controlling you need microcontroller with SPI+UART or computer. Recently I have been testing stm32g431-esc its very cheap and offers FOC+Encoder. TMC is quite expensive

@@simplecad7462 Yes, I know a little about the Trinamic TMC4671, but I understood that without the USB-2-RTMI module you could not see the graphics in real time, and since I don't see it in your video... heheh. Yeah, stm32g431 is well known for being a board with FOC capabilities. If you are interested, you can see the simpleFOC project, which is compatible with many microcontrollers, drivers and encoders. It's what I use for my project.

@@Jorgefer88 Do you know some good glue for bonding magnets to plastic? I have been testing Loctite Universal Epoxy, but few magnets just fell off. Currently using just PLA for rotor.

@simplecad7462 From the beginning I have used universal loctite to glue with PLA and I have had no problems. If they come off for you, maybe you can use two-component epoxy

Thank you! Glad to hear that the video was helpful

Hi, It is Autodesk Fusion

Wow, very cool projects! Have you tried some other filaments with better heat resistant. ASA plastic has good heat resistant but it is harder to print, because it warps easily. PETG-PC filament should have good heat resistant too. I am currently designing new version that i could machine of metal.

​@@simplecad7462Yes, I have tried many other filaments, but in the end they end up deforming. Yes, the only option for them to work without problems is to use metal heheh

Hi, I don't have 16 magnet version. Maybe i could later try to make one. I am currently very busy with electronic designs.

In this demo i used normal sensorless BLDC controller, i am planning to use FOC later.

I will upload testing later, after first tests i realized that 100V and 210uF is not enough energy. Capacitors are rated up to 500 volts. I have ordered 390V boost converter and i changed mosfets and diodes so they are rated up to 650 volts. Also my coil is not very efficient so i had to change that too. 210uF@100V is only 1.05 joules + bad coil design, which wasn't enough to shoot projectile. 210uf@390V is 15.97 joules + better coil, i think this should be enough to actually shoot projectile. I will make test video after i have fixed these.

Then I will be a subscriber and wait :)@@simplecad7462

:D I will try something else next time

👍👍👍Wow! This is the best of the best! 🤝

@@howardstark6707 Thank you for rating Bro🤝