Ive been doing weird little projects like this since a wee wee lil kid. Before most people's parents let their kids have sharp things like screwdrivers I was already hand winding motors and messing with soldering irons. My advice is > get to know your tools intimately. Tools being, anything you can buy. Classify each tool. Find the max & min of the specs. For example that motor: it's going to have torque / voltage / speed. Those are going to be a number, but in reality those numbers are deeper. Nothing in the real world is static or absolute. aka, a range. You have to find its max & min. How slow can the motor go? How fast can the motor go ? How little voltage ? How high voltage ? AND what I am talking about isn't >> Be an accountant and write all these nerdy numbers... nah, that is not necessary and it's going to take forever. You'll probably run out of patience or only do this for a couple devices. Gotta go quicker. Really, all you need to do is plug the stuff in and play with it. For the motor, just grab your variable voltage power supply or a couple different wall warts and hook up the motor & see what it does. Can it turn a wheel on a toy car ? Will it run lop sided objects and survive ? does it run slow and still move things ? This process will take a couple seconds... then just make mental note or write down if u feel compelled ... common sense yeah. My main sentiment/advice again >> classify all the things > How many oz of dish soap can a paper clip hold ?
A way to remedy the torque issue a little might have been to clean out some of the grease in the pots. It's been a while since I've had reason to take apart a pot, but as I remember, the friction of the pot is mainly influenced by the grease. I needed a low friction pot and stripped the grease with isopropyl. Might work for you, might not.
@@AllPartsCombined in my mind i want to create some way to turn the knobs(potentiometers) on a guitar amp remotely (via midi over bluetooth) and store them as presets that can be triggered thru a floor stomp … I guess I need to make a video explaining what I want to do
Hey man, took longer than I expected, but I finally got that video out - ua-cam.com/video/uZlBgybJNsA/v-deo.html Spoiler - I ended up dropping the Bluetooth feature, but hopefully there's still something in there that can help you if you're still working on your project.
How come you need two potentiometers? The potentiometer is just outputting a signal between the applied voltage and 0. Couldn't you just pigtail the single output signal and send one to your ADC for positional reference, and the other to go provide the signal to the circuit of interest?
Once you connect the potentiometer to a circuit, it is going to have some voltage applied to it, which could be changing in the case of an AC signal. This is going to throw off the attempt at reading a known voltage to set the pot position. To solve this, you need a dedicated pot for feedback control. But check out the part 2 video - I switched to a dual gang pot to condense the design significantly.
3d printing is one of the most helpful tools I've bought. I only bought an ender 3 but does the job fine without costing an arm n a leg
I was recently gifted an Ender 3. I should have invested in a printer years ago.
Ive been doing weird little projects like this since a wee wee lil kid. Before most people's parents let their kids have sharp things like screwdrivers I was already hand winding motors and messing with soldering irons. My advice is > get to know your tools intimately. Tools being, anything you can buy. Classify each tool. Find the max & min of the specs. For example that motor: it's going to have torque / voltage / speed. Those are going to be a number, but in reality those numbers are deeper. Nothing in the real world is static or absolute. aka, a range. You have to find its max & min. How slow can the motor go? How fast can the motor go ? How little voltage ? How high voltage ? AND what I am talking about isn't >> Be an accountant and write all these nerdy numbers... nah, that is not necessary and it's going to take forever. You'll probably run out of patience or only do this for a couple devices. Gotta go quicker. Really, all you need to do is plug the stuff in and play with it. For the motor, just grab your variable voltage power supply or a couple different wall warts and hook up the motor & see what it does. Can it turn a wheel on a toy car ? Will it run lop sided objects and survive ? does it run slow and still move things ? This process will take a couple seconds... then just make mental note or write down if u feel compelled ... common sense yeah. My main sentiment/advice again >> classify all the things > How many oz of dish soap can a paper clip hold ?
A way to remedy the torque issue a little might have been to clean out some of the grease in the pots. It's been a while since I've had reason to take apart a pot, but as I remember, the friction of the pot is mainly influenced by the grease. I needed a low friction pot and stripped the grease with isopropyl.
Might work for you, might not.
Thanks for the tip!
are you trying to remote control your guitar amp??? that is what brought me to this video…
Close, but not quite. What are you working on?
@@AllPartsCombined in my mind i want to create some way to turn the knobs(potentiometers) on a guitar amp remotely (via midi over bluetooth) and store them as presets that can be triggered thru a floor stomp … I guess I need to make a video explaining what I want to do
Awesome. If I can ever get this next project working and finish the video, it may be able to help you with that.
By the way, if you are making a motorized pot, be sure to check out my part 2 video if you haven't. I really streamlined the build in that iteration.
Hey man, took longer than I expected, but I finally got that video out - ua-cam.com/video/uZlBgybJNsA/v-deo.html
Spoiler - I ended up dropping the Bluetooth feature, but hopefully there's still something in there that can help you if you're still working on your project.
How come you need two potentiometers? The potentiometer is just outputting a signal between the applied voltage and 0. Couldn't you just pigtail the single output signal and send one to your ADC for positional reference, and the other to go provide the signal to the circuit of interest?
Once you connect the potentiometer to a circuit, it is going to have some voltage applied to it, which could be changing in the case of an AC signal. This is going to throw off the attempt at reading a known voltage to set the pot position. To solve this, you need a dedicated pot for feedback control. But check out the part 2 video - I switched to a dual gang pot to condense the design significantly.
This is an amazing project! We featured it in this weeks episode of The Electromaker Show: ua-cam.com/video/_I-J3QiPXsA/v-deo.html
Thanks for featuring it!