The Return of the Feeder
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- Опубліковано 16 жов 2020
- The feeder lives! We're diving back in, and this time we're packin' two motors, RS-485, and a cheeky film tensioning situation. And of course, plenty of mistakes.
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Motor: "What is my purpose?"
Stephen: "You peel film."
Motor: "Oh. My. God."
I have no clue what this is or what you are talking about and I still enjoy it. Your personality and presence are terrific.
Quality is perfect as always. Love the video.
THANK YOU for sharing your mistakes! Speaks volumes of your personality!
The excitement is infectious :D
I am completely addicted to how excited you are about what you do! I'm the same way and it is so lovely to see others that are truly passionate about their work. Keep it up man, you are killing it! Love the designs!
So cool to see the solution you came up with for this problem. The experience of doing a ton of engineering for one specific arbitrary constraint (like using only one motor), having it almost work but not consistently enough, and then ultimately ending up taking the "easy" route in the end!
I just love your enthusiasm ! Hope this will inspire young people to create. Bravo !
Love seeing this come together
Love watching these episodes so much I watch them at normal speed! Keep up the great work Stephen!
OMG the BMP 😍
great job, Stephen
You should change from a switch to a hall sensor with a magnet on the arm, otherwise you are going to eat the 100.000 switch life in no time when your awesome machine is fully running.
Just saying.
I think metal is enough to trigger the sensor
@@carlmen6567 I don't think so
I don't have much experince with hall sensors, but I don't remember being able to trigger one just with metal (no magnet)
@@claudiu7909 I didn't specifically say hall sensor, there are many types of proximity sensor that can trigger with just metal
@@carlmen6567 Nixie said hall sensor
And you said that you think metal is enough to trigger the sensor
I presumed you were referring to a hall sensor since that is what Nixie was talking about
awesome pnp series! keep up the good work!
soldering tip: first do the decoupling caps then the chips. so the chips is more likely to survive the soldering
Nice bodges! I love a good janky bodge.
Take your time. Check footprints one more time before you order. Then check them again. If you've got parts, print out the gerbers and place the parts on them.
4:23 Almost every electronic engineer will make that jank joint atleast once in their life.
Also I noticed no solder mask between your IC pads. This will burn you when you start reflowing QFNs and smaller parts but is totally fixable... Use gerbview to preview the solder mask exactly as it will be sent to pcbway in your gerbers. Then in pcbnew, under Board Setup then Solder Mask/Paste, set solder mask clearance and minimum width to 0.05mm. Not sure what the minimum is with pcbway, but I know this works with JLCPCB, and gives me solder mask between 0.5mm QFN pads.
Interesting tip. My last board used 0.5mm pitch QFP parts and had no mask. I did a bit of research, looked at some existing boards etc. No mask between pins appeared normal so I just went with it and had no issues. Isn't lifting up the mask a risk, too, as it's going to be pretty thin. I used drag soldering for my install but I'm pretty sure reflowing would work, if a stencil was used.
I agree with this comment. Even on very fine pitch components there should be mask between the pads. It greatly reduces the chance of shorts if things are not perfectly aligned during solder printing and part placement.
Why is happy/excited Steven so cute!?!
Thanks for your videos. Your enthusiasm is really catchy. Just a thought I wanted to share, haven't you considered moving index wheel above the tape and use its other side to pull film in reverse?
Oh man, you should really get a stencile and hot air solder those boards. It would be sooo much faster and you would get a better looking board as well
I actually subscribed for being updated on feeders. This is only open sourced electronic feeder that looks promising so far.
Nice project, however in the past ive used Siemens, Dynapert, TDK, Mydata machines just use a neumatic plunger to both push the tape through and peel off tape in one action.
EDM machines commonly chop up the spent material. AKA chop and drop in a bucket might be easier to do then all this attempting to rewind.
Get an ST-Link V2 for programming the STM32. It's pretty cheap and it's the way STM32s are made to be programmed.
Stm32s can be programmed from almost anything that speaks swd. The st link is the one made by st but it is definitely not the best or most capable debugger / programmer for them.
I've been working with electronics and circuit boards for over 30 years and some of it has become pretty mundane so it's nice to see your enthusiasm. I have just recently discovered the Arduino ecosystem(within the last 2 years) and am currently using it for data acquisition on a 20 million dollar project to replace about $300k of National Instruments (overpriced) hardware. Love the Arduino ecosystem.
Instead of hacking marlin, why don't you set up a gcode sub-driver in Open PnP that is just a simple sketch that listens for your custom Mnn commands, then fires out feed instructions over RS485? Then you have an extensible setup that anyone can use - even with Smoothieboard, etc... I've just done my first production runs on my custom Open PnP machine. :D
I second that, that exactly what I have done for my custom future PNP: RS485 with named feeder + Custom driver in openpnp. Except the "on the shelf" part, I don't understand the point to use CNC motors control board (synchronized motor steppings which is not mandatory for a PNP) with the gcode constraints for a PNP.
I have the same question. Why could not integrate this feeders with OpenPnP software?
Hey Stephen
Could you make a video about the ESP32 where you
explain the connections,
make a small circuit,
show how to program the ESP32 and
where you show how to upload the program.
Ah RS485, I know her better as DMX512 from the live events industry! I made a nintendo wiimote to DMX controller at university, an absolute bastard of a task, especially in 2012!
How easy would it be to have the feeder unit driven by plastic gears with a pickup roller to pick up the movement off a common drive rod? One motor drives the rod and a solenoid pushes the pickup roller onto the rod. It would remove the need for 2 motors per feeder.
Blackmagic probe is the best. Esden makes awesome tools.
Can you make a quick desk tour ? I am interested in your gear and setup. Thanks alot. Cool videos by the way.
I need the drugs that you are cracked up on!
It's just so motivating to watch your videos! :D
Hey man, love the project. Have you considered picking up a cheap mill to make your prototype boards? You can make bodge proof finalized boards before ordering from something like JLCPCB or PCB Way. It'll take less than an hour to test your design, and then a final order of your proofed design from a PCB manufacturer.
that PCB holder costs 150€ wtf
i guess its still worth the price
yeah, it's pretty expensive. but i think it's totally worth it, best thing ive ever used for holding boards!
Or you can machine one from scratch if you have 2.5k worth of machinery.
XDDDD
@@stephen_hawes where can I find your holder?
@@nixie2462 i can definately do that at Work :)
@@Albafer its in the description (Tools i use)
Stephen, how do you test your PCB design before sending them off for fabrication?
I'm not Stephen, but look at the datasheets, then look at them again, then assume you've made a mistake and try to look again. Keep verifying everything over and over, assuming you've done everything wrong. Only thing I've found that works is NOT trusting myself.
is that 3Dconnexion ergonomic addon 3d printed and where can I get the same one?
So you find bugs... What steps do you and should you take to kill them? Should you fix them in KiCad when you find them, should you make a post-it note on the PCB to remind you via revision time...
Did you have the link of the pcb holder?
How did you learn electronics and designing circuits?
Hi, I have recently had a traumatic experience with SMD soldering, what solder do you use?? :)
Hey I had a thought! If that switch is wired as normally open and it fails then the motor will continue to spin forever, causing a tangled mess :)
I think just reconnecting it as NC and inverting the logic in code will be marginally more reliable? (Like how you would for limit switches).
Love the videos, keep it going man!
When you’re done with the Pnp machine, you should consider designing an open source insertion mount machine.
It would be nice to have a similar stand-alone product for 3d printers so there is always slack on the filament
I saw that you desing in Fusion 360. Do you have any idea to do with the policy changes? Pay? Alternative software?
Dude! It's four-EIGHTY-five! Kudos for switching to ARM chips though. They are 4 times better than AVR chips for a quarter of the price.
Have you tried the ATTiny44/84? Tons of IO, and even cheaper than the STM32.
You should checkout jlcpcb parts library for matching parts in your bom, I'd say you should be able to get those boards made & assembled for cheap.
Takes some of the fun out of it though!
3:38 Technically not quite the truth, even the STM32F030K6 has a built in bootloader, but you download new firmwares via UART (PA14/PA15 or PA9/PA10) instead of USB DFU.
2:15 any way to "co-stream" (probs the wrong word lol) on twitch AND youtube live?
I'm not too familiar with OBS yet, so i don't know if this is even possible.
I've seen others do it..
Can we just take a moment and acknowledge how sexy those black pcb look?
There was a Livestream on twitch and I wasnt notified .
😔💔
me as well 😓
I announce them in the Discord! There's a link in the description if you wanna join!
Edit the board file with a different motor driver pads, one with ground!! Even if you have to make a pad yourself !
I know some PCB designers who have been burned so many times by library (included) footprints that they make 100% of their own by studying the data sheets. I at least try to check before ordering a board.
2 motors is better, and it's like the siemens per example
Why not use Klipper instead of Marlin?
I love your videos and your progress. Why do you want an electronic feeder though? You already know of the ploopy feeder and there is an even better verion of ploopy called the lite feeder. Wouldnt it be ideal to have your parts dispenced automatically mechanically? For small machines it seems super overkill to engineer, design, and digitally connect 30 feeders. Whats the reasoning behind them?
12:38 c u s t o m p l u g i n / s o f t w a r e ?
I'm so hyped, you're just casually making a PCB Assembly Device AND a workflow for it lol
goblins and ghouls ❤️❤️❤️
pog
Awesome job Stephen! But PLEASE, do your mental sanity a favor and use CAN! RS485 is total crap, you'll have to spend countless hours making it work. With CAN, everything is handled by hardware (collisions, addressing, priorities....). CAN looks PERFECT for this purpose. I'd move back to a STM32F103 that is still super cheap but has CAN. Good luck! :)
Why not to use just one motor to pull the film and feed the tape this way? The way almost all industrial feeders do their work... This method of feeding confuses me, but meh it works too!
desubscribed, too much ads for me. Keep up the good work tho!!
whoops, youtube auto-added like fifty! thanks for letting me know!
I think your poetry is overrated.
waiting for an edited version without the over the top reactions..... might get you a few thousand extra subscribers.
The OTT reactions is why we watch his channel 😂. Can't remove that. No no no.
@@Appregator Who is we? you mean you just have your own opinion, just like me having mine. It is just a suggetion that will get him way more subscribers. if 80% of the content is cheering when an led blinks it does not give any real value to a topic about a feeder. The guy is obviously smart and engaging. I just noticed that i get annoyed about the ott reactions getting so much time and not enough time on the subject. Maybe try it for a video or two and see the result. Doing the same everytime might be detrimental to the growth of his channel.
After watching the channel for a while, I'm pretty much convinced that Stephen is being genuine and not forcing the OTT style like so many other youtubers out there. It's also kinda his trademark 'thing' if you will, so removing it would upset the core audience by default.
@@DJ-Sellout you are right that many other UA-camrs fake their reactions. Maybe that is why I get bored with it. I think he should balance it a bit. Not go cheering about something very easy to accomplish and go all out when something major that you worked hard for works.