Wow, that's impressive! Is it working on a constant frequency or clockwise and counter clockwise phases are unequal? And how does it compensate vertical movements?
Thanks! Yes it's running on a constant frequency and angular displacement. The vertical movement is accommodated by the small amount of end-play that the stepper motor has.
Very nice project. At the moment iam working on a vibratory screw feeder for my bachelor thesis. Iam working with a magnet that pulls the springs to itself and releases them afterwards. I also try to use dc motors with an excentric weight on the crankshaft. Can you give me some construction hints that really matter for those feeders? So far i took care of the spring angles, frequencies, weight and bowl design. Maybe you can also give me an explanation how you generate vibrations with the stepper motor. Stay healthy!
Hi! It sounds like you are on the right track already. The main thing to keep in mind is that the springs do all of the work, and the motor / coil is just used to excite them. You are trying to achieve a resonant frequency in the spring - mass system so it actually doesn't really matter how you do this. I have found that for lower power & frequency drives a steeper spring angle helps to get movement. The stepper motor is simulating a coil in this system - it rotates a specified distance one way and then the other to achieve the displacement of the springs. There is enough end play in the motor to accommodate the vertical movement :)
@@vikingmachinery Thanks for your answer. So you create those vibrations by twitching the motor back and forth really quickly? Yeah i got an encoder connected with a selfmade control unit for both constructions, so that i can manually change the frequencies from 0 - 125 Hz. I think the system should have resonance somewhere in between. Thank you and again: stay healthy!
@@crypsiee Exactly :) Fantastic! That sounds like a great approach. If your resonant frequency is outside of this you can modify your springs to change the frequency.
Hi! They are a tapered press fit into the mating parts. I normally give them a gentle tap in with a hammer, and it makes them almost impossible to remove!
Hi! It probably depends on the nail size more than anything. This particular bowl design will feed small nails end on, but doesn't have the tooling to orient them all head up. We do offer custom bowl design though, so can feed just about anything. Send us an email if you would like to discuss some options :)
Hey there, looking for the arduino code you mentioned was in the data package available in one of the links above... I don't see it anywhere. Is that something you are willing to provide? If not, what step size/freq are you running your motor at to achieve the vibration? Thanks for such a cool design! This feeder is genius!
Hi Jay! It's included as part of the download on the CGTrader link. It is behind a paywall though sorry. The exact step / frequency is a bit trial and error for your part (just like tuning a 'normal' one - there are sweet spots in the resonance band). Glad you like the design though!
@@vikingmachinery I downloaded your parts from the site... thanks! Two things that would be helpful to add to your download is a wiring diagram for the TB6600 and the photos you included of the build only include the first half of the build. Would you be willing to provide a wire diagram and the remaining photos for the build?
@@jaybogardus7781 Hi Jay! No worries! Yea that's good feedback. I will update the download package to include these at some stage. In the mean time, feel free to shoot me an email and I can help you through the project :)
Did you coated your bowl with some wear protection coating? I want to print a bowl for myself with PLA and i need it for a long run (above milion steel parts with sharp egdes, ball spring nuts in this case). What kind of coating is that? Thank you.
Hi! The motor is running forward and backwards at a pre defined frequency and amplitude :) The Arduino code is in the download pack linked in the description.
Hi there! We sell the 3d printing files on CG Trader for $55. There is a link to these in the description. If you would like to purchase a fully operating machine from us get in touch via email and we can work something out :)
Wow, that's impressive! Is it working on a constant frequency or clockwise and counter clockwise phases are unequal? And how does it compensate vertical movements?
Thanks! Yes it's running on a constant frequency and angular displacement. The vertical movement is accommodated by the small amount of end-play that the stepper motor has.
This is amazing. Any plans to design an auto-fed screwdriver?
Thanks Brian! It's on the cards actually! I'd like to build an autofeed driver on a CNC gantry for doing plastic parts assembly :)
Very nice project. At the moment iam working on a vibratory screw feeder for my bachelor thesis. Iam working with a magnet that pulls the springs to itself and releases them afterwards. I also try to use dc motors with an excentric weight on the crankshaft. Can you give me some construction hints that really matter for those feeders? So far i took care of the spring angles, frequencies, weight and bowl design. Maybe you can also give me an explanation how you generate vibrations with the stepper motor. Stay healthy!
Hi! It sounds like you are on the right track already. The main thing to keep in mind is that the springs do all of the work, and the motor / coil is just used to excite them. You are trying to achieve a resonant frequency in the spring - mass system so it actually doesn't really matter how you do this. I have found that for lower power & frequency drives a steeper spring angle helps to get movement. The stepper motor is simulating a coil in this system - it rotates a specified distance one way and then the other to achieve the displacement of the springs. There is enough end play in the motor to accommodate the vertical movement :)
@@vikingmachinery Thanks for your answer. So you create those vibrations by twitching the motor back and forth really quickly? Yeah i got an encoder connected with a selfmade control unit for both constructions, so that i can manually change the frequencies from 0 - 125 Hz. I think the system should have resonance somewhere in between. Thank you and again: stay healthy!
@@crypsiee Exactly :) Fantastic! That sounds like a great approach. If your resonant frequency is outside of this you can modify your springs to change the frequency.
@@vikingmachinery Thanks for your help and quick answers! I will keep you updated :)
How are your springs retained? Do they ever come close to working themselves out?
Hi! They are a tapered press fit into the mating parts. I normally give them a gentle tap in with a hammer, and it makes them almost impossible to remove!
Hi....any idea if it would feed nails or does the bowl need some modification.
Hi! It probably depends on the nail size more than anything. This particular bowl design will feed small nails end on, but doesn't have the tooling to orient them all head up. We do offer custom bowl design though, so can feed just about anything. Send us an email if you would like to discuss some options :)
Hey there, looking for the arduino code you mentioned was in the data package available in one of the links above... I don't see it anywhere. Is that something you are willing to provide? If not, what step size/freq are you running your motor at to achieve the vibration? Thanks for such a cool design! This feeder is genius!
Hi Jay! It's included as part of the download on the CGTrader link. It is behind a paywall though sorry. The exact step / frequency is a bit trial and error for your part (just like tuning a 'normal' one - there are sweet spots in the resonance band). Glad you like the design though!
@@vikingmachinery I downloaded your parts from the site... thanks! Two things that would be helpful to add to your download is a wiring diagram for the TB6600 and the photos you included of the build only include the first half of the build. Would you be willing to provide a wire diagram and the remaining photos for the build?
@@jaybogardus7781 Hi Jay! No worries! Yea that's good feedback. I will update the download package to include these at some stage. In the mean time, feel free to shoot me an email and I can help you through the project :)
Did you coated your bowl with some wear protection coating? I want to print a bowl for myself with PLA and i need it for a long run (above milion steel parts with sharp egdes, ball spring nuts in this case). What kind of coating is that? Thank you.
I didn't actually. They seem to last really well even without a coating, but if I was to coat I would try using an industrial 2 pack epoxy product :)
@@vikingmachinery Thank you :)
No worries :)
How is the motor running? Is it clockwise only or both at a frequency? Can you share the code please? :)
Hi! The motor is running forward and backwards at a pre defined frequency and amplitude :) The Arduino code is in the download pack linked in the description.
@@vikingmachinery ah I see thank you :)
How much ??
Hi there! We sell the 3d printing files on CG Trader for $55. There is a link to these in the description. If you would like to purchase a fully operating machine from us get in touch via email and we can work something out :)