Guys - this isn't really about making a better glue gun, this is a Master Class about what really goes into planning and designing then implementing any non-trivial project that requires a microprocessor to interface with the real world. This is better than the generic 'widget' that business schools used in examples for decades because it uses a fairly common non-digital device whose operation is easily understood then shows the kinds of complications that arise when trying to add digital features and the thought processes that can be applied to solving them.
If you need to cost reduce later, you could use two switches, or reserve a small region of the hall effect value for "retract the stand".. like how in a digital camera, you have a first push down to focus/etc and then a full press to trigger the shutter.. slightly push in the trigger to retract the stand, then have a detent with a dead spot in the range where the gun isn't extruding the glue...
Hello Ben. I would recommend using a standalone capacitive touch sensor like the AT42QT1010. They're quite reliable and you can get them at less than 50 cents a pop when buying large quantities.
Hi Ben, if you run out of timers, keep in mind you can use the Watchdog Timer as a low frequency/accuracy timer. I use it frequently as a millisecond resolution timer for non critical delays. Great show, keep on doing it :) Also could you make the sudo sergeant (Hi Felix)episodes longer, they always seem rushed..
I'm watching this again and feel this capacitive touch would be finicky. This is over complicated. Active step at the first "step" of a trigger. Or a second trigger that is longer and softer and hits another switch or interrupt a IR signal like on a mouse scroll wheel. A simple line encoder would be better I think to do both functions. This is a gun for a tinker-er that could possibly creat a lot of interference, magnetic or capacitive touch. Line encoder strip would less chance of something going wrong, plus I say add ground for shielding with a small pad/post to allow a grounding wrist strap to clip on.
This takes me back to when I was playing with ATtiny13s. I got started programming them with a parallel port. It took me a while to get and ADC running.
You should make a bed system that as soon you lay down the covers automatically cover you up and have a way where the mattress stays cool but you stay warm without out burning up at night
Minor thing which you probably already know but don't use ports, bits, and masks directly sprinkled throughout the code. Create your own definition for them at the start and use that. Then when you port to another device or change an IO assignment you only have to change the one definition instead of performing global search and replace.
Is there a use case that would necessitate the stand being extended when not sitting on a surface? Either a pressure sensor on the bottom or a capacitive sensor on the grip to detect that it is being held would seem to make more sense.
But seriously, clean it all up a bit, patent if possible, sell it or license it out to companies. This stuff should now be basic on all good glue guns.
As a hot-glue novice this may be a very misguided suggestion, but it seems to me like there could have just been a switch/button that is depressed when the trigger is extend out, but pulling the trigger would release the button/switch and that could cause the stand to flip back? Only downside to this compared to the capacitive button is the stand would be out when you're lining up the gun. Possible make the trigger a 2-step trigger where the first step moves the stand and the second extrudes the glue? Similar to like, the Gamecube triggers?
5:10 - Whoa, spoilers! But anyway, why a hall effect sensor and not simply a potentiometer? Seems like too much of a complicated assembly, even having to check the magnet polarity.
So when you put your finger on the trigger, the stand extends, but taking it off once you set it on the table, what's to stop the stand from just retracting while it sits? Or is the idea to Retract the stand when you have your finger ON the trigger?
What if when the capacitive touch was active, the stand was up and vice versa? If you are holding the gun with your finger near the trigger, then you shouldn't need the stand down. And if your finger isn't near the trigger, you're probably not holding it, so put the stand down. Would hopefully reduce the flakiness and you could even increase the sensitivity.
'By default, the successive approximation circuitry requires an input clock frequency between 50 kHz and 200 kHz to get maximum resolution. If a lower resolution than 10 bits is needed, the input clock frequency to the ADC can be higher than 200 kHz to get a higher sample rate.' So ADC prescaller of 16 for 8 MHz core clock and demanded 10 bits won't do you best- 32 os minumum and thus touch library you found uses safer 64
call in for the Super Glue Gun and you won't get it at a 1000, not 200 and not 100!! You will get it for only 5 payments of $19.99!!! but wait, there's more! call in right now and you can receive a free digital abacus! just pay shipping and handling.
I hope that the case will be made from something that won't melt from the heat from the heater block, like I said before could you not build the glue gun like your soldering station is constructed and have all data processing happening in the base unit and a tiny processor in the head unit that gets it commands from the base unit via a extra wire in the umbilical cable which would be 25 way shielded printer cable.
i know a lot of people dont like the long windyness of this project, but if you get something done in epdisode, like the capasitive touch here, i dont mind. its just that when you work on it, and dont get anything done, its not a good episode.
That's exactly what I was thinking too. Less logic leads to less chance for failure and higher reliability. This just doesn't feel like a good place for a cap sensor.
Agree with this one. If you put the sensor near where the end of where the pinky finger would rest when gripping the handle, it would activate in a more natural occurrence. I was worried that by putting it in the finger, where you would normally grab onto when picking the thing up, it would cause the stand to "retract" pre-maturely, causing a very hot item to become unstable.
Indeed. This design is not very well thought out. Apart from the fact that a simple external stand would be much more functional, you want the rod to get out of the way immediately. If you have to glue in tight places, you do not want that think flapping around in the breeze.
Pretty simple, if you want the stand to stay out of the way just keep your finger on the trigger. Also, it's faster than a button on the bottom because the stand is already lowering as you set the gun down.
So, I think you've jumped the shark in terms of making this thing cost-effectively manufacturable. I get the feeling this is all scope creeping for show content and less for actual production. With that, I've watched it, so I guess it was a success.
Who CADs in Imperial units? Everyone is secretly laughing at you, like adults laugh at children who wear those blinking sneakers. It's cute, but mostly absurd.
He basically said in this video that the good thing about this glue gun is that you don't have to move your finger repeatedly to dispense glue. Pull trigger repeatedly and save a ton of money. Sounds like a good trade off to me.
The point is to learn how to bring a product to a point where you can sell it. It's about learning things. Nothing is a waste of time as long as you learn something.
Jason Becker then after that you can then design a PCB for everything and then make a housing and trigger to hide the wiring and test if everything works
most youtube creators show project long 10 months in 10 minutes and you need almost whole year and 300 videos 20 or more minutes long for a fucking hot glue gun...
Arduino Guy Projects and More! well, more projects, more videos = more watch time... btw you have a good channel but dump all the politics videos... subbed
adriano sousa true but yet again too many videos... i bet this whole series of hot glue gun would fit in 2-3 videos 20 minutes long and would again show all the real work, brainstorming, trials, errors...
nothing personal.. and not a hate message,, but could you get the sergeant to take some acting or public talking courses. I like him, but he is so dry and boring. Never even smiles or cracks a joke.
Guys - this isn't really about making a better glue gun, this is a Master Class about what really goes into planning and designing then implementing any non-trivial project that requires a microprocessor to interface with the real world. This is better than the generic 'widget' that business schools used in examples for decades because it uses a fairly common non-digital device whose operation is easily understood then shows the kinds of complications that arise when trying to add digital features and the thought processes that can be applied to solving them.
If you need to cost reduce later, you could use two switches, or reserve a small region of the hall effect value for "retract the stand".. like how in a digital camera, you have a first push down to focus/etc and then a full press to trigger the shutter.. slightly push in the trigger to retract the stand, then have a detent with a dead spot in the range where the gun isn't extruding the glue...
...and now that i've finished watching this, kindly ignore my comment. :D
Hello Ben. I would recommend using a standalone capacitive touch sensor like the AT42QT1010. They're quite reliable and you can get them at less than 50 cents a pop when buying large quantities.
As if cost was an issue with this project, lol
Well, more of a reason to use a standalone chip then!
You and Ave. some of smartest people on UA-cam.
Gee, everyone in comments is so critical. It's a project! Learning, teaching experience.
Hi Ben, if you run out of timers, keep in mind you can use the Watchdog Timer as a low frequency/accuracy timer.
I use it frequently as a millisecond resolution timer for non critical delays.
Great show, keep on doing it :)
Also could you make the sudo sergeant (Hi Felix)episodes longer, they always seem rushed..
Should put the touch sensor somewhere on the back of the gun, so you can tap it with your thumb and it doesn't trigger accidentally during use.
It's so over-engineered... it's beautiful!
I'm watching this again and feel this capacitive touch would be finicky.
This is over complicated.
Active step at the first "step" of a trigger.
Or a second trigger that is longer and softer and hits another switch or interrupt a IR signal like on a mouse scroll wheel.
A simple line encoder would be better I think to do both functions.
This is a gun for a tinker-er that could possibly creat a lot of interference, magnetic or capacitive touch. Line encoder strip would less chance of something going wrong, plus I say add ground for shielding with a small pad/post to allow a grounding wrist strap to clip on.
This takes me back to when I was playing with ATtiny13s. I got started programming them with a parallel port. It took me a while to get and ADC running.
On thingiverse I saw a design where the author paused the print to insert the magnet and then resumed the print. Great idea in my opinion.
Felix don't seem to be enjoying to work with the proprietary library.
The lack of openness makes him sad.
You should make a bed system that as soon you lay down the covers automatically cover you up and have a way where the mattress stays cool but you stay warm without out burning up at night
You guys are back IMO, the past few videos show we’re getting back to the real Ben heck!! Whoooaaaa! Finally!
Is there such as things as trigger discipline for glue guns?
I really love that over Engineering in this!
Do you guys realize the irony of disabling comments on the community feedback video?
One of my biggest bugbears is the glue stick running out mid glue run. Have you considered a glue stick cartridge magazine that has an auto-loader?
When will it be on sale ?
Minor thing which you probably already know but don't use ports, bits, and masks directly sprinkled throughout the code. Create your own definition for them at the start and use that. Then when you port to another device or change an IO assignment you only have to change the one definition instead of performing global search and replace.
5:58 "He or she, could be either." then proceeds to say "he" "his" and "mister" for the rest of the segment. Way to go there.
You may want to add additional logic so the stand is "locked" in the retracted position once the trigger is pulled.
Really good project. Thanks Ben!
Is there a use case that would necessitate the stand being extended when not sitting on a surface? Either a pressure sensor on the bottom or a capacitive sensor on the grip to detect that it is being held would seem to make more sense.
But seriously, clean it all up a bit, patent if possible, sell it or license it out to companies.
This stuff should now be basic on all good glue guns.
Ben should submit product adverts to the Rick and Morty guys. He sounds exactly like the alternate universe TV shows when he wants to.
No hydraulics or biometric sensor (to limit use to authorized users)? That just makes this glue gun ridiculous!
BTW, where is Karen?
As a hot-glue novice this may be a very misguided suggestion, but it seems to me like there could have just been a switch/button that is depressed when the trigger is extend out, but pulling the trigger would release the button/switch and that could cause the stand to flip back? Only downside to this compared to the capacitive button is the stand would be out when you're lining up the gun. Possible make the trigger a 2-step trigger where the first step moves the stand and the second extrudes the glue? Similar to like, the Gamecube triggers?
5:10 - Whoa, spoilers!
But anyway, why a hall effect sensor and not simply a potentiometer? Seems like too much of a complicated assembly, even having to check the magnet polarity.
Is an RC servo really something that would be suitable for a retail product?
So when you put your finger on the trigger, the stand extends, but taking it off once you set it on the table, what's to stop the stand from just retracting while it sits?
Or is the idea to Retract the stand when you have your finger ON the trigger?
What if when the capacitive touch was active, the stand was up and vice versa?
If you are holding the gun with your finger near the trigger, then you shouldn't need the stand down. And if your finger isn't near the trigger, you're probably not holding it, so put the stand down.
Would hopefully reduce the flakiness and you could even increase the sensitivity.
4:55 the best moment of the entire video
'By default, the successive approximation circuitry requires an input clock frequency between 50
kHz and 200 kHz to get maximum resolution. If a lower resolution than 10 bits is needed, the
input clock frequency to the ADC can be higher than 200 kHz to get a higher sample rate.'
So ADC prescaller of 16 for 8 MHz core clock and demanded 10 bits won't do you best- 32 os minumum and thus touch library you found uses safer 64
Is this going to be a $1000 glue gun?
call in for the Super Glue Gun and you won't get it at a 1000, not 200 and not 100!! You will get it for only 5 payments of $19.99!!! but wait, there's more! call in right now and you can receive a free digital abacus! just pay shipping and handling.
Probably!
I hope that the case will be made from something that won't melt from the heat from the heater block, like I said before could you not build the glue gun like your soldering station is constructed and have all data processing happening in the base unit and a tiny processor in the head unit that gets it commands from the base unit via a extra wire in the umbilical cable which would be 25 way shielded printer cable.
Ben, what's a liberry?
Why dont you put a button at bottom of the handle so when you put it on the table strands pop out. And when you put it off the table it get back
Did you submit a patch of your changes back to the author? Open source all the things!
What is this for?
how do i get one?
You should make a chip 3d pen
A "slice" of a fish is really a steak and nof a filet :)
To me it always seems that felix really doesn't want to be there. XD
My brain just fried
It's the super glue gun, oh jeez!
Please just scrap the retractable stand. Give it a stable base, like a cordless drill.
The super glue gun!
i know a lot of people dont like the long windyness of this project, but if you get something done in epdisode, like the capasitive touch here, i dont mind. its just that when you work on it, and dont get anything done, its not a good episode.
Or, you could've just added a button to the bottom of the handle
no where near as cool
That's exactly what I was thinking too. Less logic leads to less chance for failure and higher reliability. This just doesn't feel like a good place for a cap sensor.
Agree with this one. If you put the sensor near where the end of where the pinky finger would rest when gripping the handle, it would activate in a more natural occurrence. I was worried that by putting it in the finger, where you would normally grab onto when picking the thing up, it would cause the stand to "retract" pre-maturely, causing a very hot item to become unstable.
Indeed. This design is not very well thought out. Apart from the fact that a simple external stand would be much more functional, you want the rod to get out of the way immediately. If you have to glue in tight places, you do not want that think flapping around in the breeze.
Pretty simple, if you want the stand to stay out of the way just keep your finger on the trigger. Also, it's faster than a button on the bottom because the stand is already lowering as you set the gun down.
haha, hmm ok yeah. ok hmmm. hmm. and ben talk talk talk talk talk talk talk xD
"Im-hotep Priest!"
So, I think you've jumped the shark in terms of making this thing cost-effectively manufacturable. I get the feeling this is all scope creeping for show content and less for actual production. With that, I've watched it, so I guess it was a success.
Who CADs in Imperial units? Everyone is secretly laughing at you, like adults laugh at children who wear those blinking sneakers. It's cute, but mostly absurd.
Doesn't anyone NOT fast forward through the long long intro?
It would be so much easier just to have a “safety switch” to control the stand. The touch control is a little too fancy for such a task.
Overbuild and under preforming. I doubt this is better than a simple external desk stand. In fact, I think it is far more cumbersome.
8 shows for a glue gun?
#ImSoMetaEvenThisAcronym
Ps3 portable
Is Karen still here?
Yup. I"ll be back soon!
He basically said in this video that the good thing about this glue gun is that you don't have to move your finger repeatedly to dispense glue. Pull trigger repeatedly and save a ton of money. Sounds like a good trade off to me.
as cool as that is, I feel like its less convenient than a stand that uses manual adjustment
#triggered :P
Kinda gotta ask yourself if this was a massive waste of time man
Once the work is done anyone can copy it at a lower time frame.
The point is to learn how to bring a product to a point where you can sell it. It's about learning things. Nothing is a waste of time as long as you learn something.
Jason Becker then after that you can then design a PCB for everything and then make a housing and trigger to hide the wiring and test if everything works
Total waste of time and talent.
Kind of like this UA-cam comment.
most youtube creators show project long 10 months in 10 minutes and you need almost whole year and 300 videos 20 or more minutes long for a fucking hot glue gun...
Arduino Guy Projects and More! well, more projects, more videos = more watch time... btw you have a good channel but dump all the politics videos... subbed
well, i really like to watch de entire process of conceive a new product..
To see the "real" work to do things, like brainstorm, trials, errors..
adriano sousa true but yet again too many videos... i bet this whole series of hot glue gun would fit in 2-3 videos 20 minutes long and would again show all the real work, brainstorming, trials, errors...
I think that the main reason are 💰💰.
Morc thats for sure, as for all youtube creators... but others are more creative than making 300 videos about a hot glue gun...
why is the stand out when he's actually extruding? looks like a failure.
also this is crazy overkill and over engineering for a glue gun
nothing personal.. and not a hate message,, but could you get the sergeant to take some acting or public talking courses. I like him, but he is so dry and boring. Never even smiles or cracks a joke.
I really hate to sound like a broken record, but: No Karen = Thumbs Down!