NO WAY!!!! You are a biomedical engineer!!! That’s what I’m in school for. I feel in love with the field when a close friend of mine with a disability was unable affordably get a piece of medical equipment to improve his quality of life. So I made it my mission to make more affordable medical devices. I’d love to know more about what you do in your labs if you are allowed to share. Do you have a video maybe?
you can use a much higher voltage (if the driver can handle it) with the stepper motors because the drivers are constant current sources increasing the voltage increases the saturation speed of the coils and thus increases the stepping speed, if you need more speed that is :)
The perfect thing would be to marry this to digitally controlled valves so that you could suck up one material, switch the valve, and then dispense it all under programming control.
I used the exact same components to build this but I ran into a problem. My stepper motor is not rotating smoothly. It's giving more of a ticking motion instead of a smooth seamless rotation.
Can this operate with highly viscous fluids(e.g. resins)? It would be much less messy than hand syringing if so. Say viscosities similar to epoxy, from 600-800 MPa*s
Although food 3d printing seems to be a popular idea, it's the least interesting application for something like this. Syringe pumps make silicone rubber prints and water-glass printing possible. RTV silicone provides a flexible print that's heat resistant up to 200-300 degrees celsius and water glass provides a route to ceramics and true glass printing. Also, RTV-1 silicone can be boiled in water to make it food safe. If you're not adverse to strong vinegar, it's actually not bad in some applications. As far as food preparation goes, there's not really a reason i can see to do that, but that's me. .
Can you elaborate more on the amperage of drivers and what you can use/can't use for a 12V bipolar stepper motor? Using an arduino UNO R3, what set-up would you advise I use?
This is amazing. I need to make this same design although I do not have access to a 3D printer to make the parts you described. What could I do to work around this?
G'day Dr. D-Flo. How can I go about printing variable sizes of drops of variable viscosity paste and liquid? My guess is having a camera watching the tip of the needle to control the drop size. If the viscosity is high then the drop has to contact the place of deposit and then retract when the drop sticks.
200$ is a fuck ton of money for a syringe pump and the stepper motor and driver and arduino are a perfect overkill for this project a cheaper solution will be a normal motor and varying the voltage for different speeds an even cheaper solution is to get one of these cheapo 15 $ water pump and hacking it with a attiny and a stepper driver no need for an arduino or shields that add cost with no benefit anyway have fun
Fouzai, I am able to achieve micrometer precision with the setup. Using a DC motor or a water pump would not suffice for my end goal: the 3D food printer.
NO WAY!!!! You are a biomedical engineer!!! That’s what I’m in school for. I feel in love with the field when a close friend of mine with a disability was unable affordably get a piece of medical equipment to improve his quality of life. So I made it my mission to make more affordable medical devices. I’d love to know more about what you do in your labs if you are allowed to share. Do you have a video maybe?
Instead of the linear rod and bearing, you could use a slot of the aluminium profile as a guide.
you can use a much higher voltage (if the driver can handle it) with the stepper motors because the drivers are constant current sources increasing the voltage increases the saturation speed of the coils and thus increases the stepping speed, if you need more speed that is :)
Really great walkthrough, thank you for going through it step-by-step!
This is amazing! Great work, you are a great builder.
The perfect thing would be to marry this to digitally controlled valves so that you could suck up one material, switch the valve, and then dispense it all under programming control.
amazing,I‘m hoping to see the part2 of Food 3D Printer
What are the max and min flow rates you were able to generate? How would you make it cheaper?
Using a planetary geared motor and a metal syringe, do you think this setup could be used for silicone to mold injection?
I used the exact same components to build this but I ran into a problem. My stepper motor is not rotating smoothly. It's giving more of a ticking motion instead of a smooth seamless rotation.
Can this operate with highly viscous fluids(e.g. resins)? It would be much less messy than hand syringing if so. Say viscosities similar to epoxy, from 600-800 MPa*s
Really cool. Thank you!
Although food 3d printing seems to be a popular idea, it's the least interesting application for something like this. Syringe pumps make silicone rubber prints and water-glass printing possible.
RTV silicone provides a flexible print that's heat resistant up to 200-300 degrees celsius and water glass provides a route to ceramics and true glass printing. Also, RTV-1 silicone can be boiled in water to make it food safe. If you're not adverse to strong vinegar, it's actually not bad in some applications.
As far as food preparation goes, there's not really a reason i can see to do that, but that's me. .
Can you elaborate more on the amperage of drivers and what you can use/can't use for a 12V bipolar stepper motor?
Using an arduino UNO R3, what set-up would you advise I use?
can the arduino control two syringes or does each one need its own arduino? thanks for the vid
This is amazing. I need to make this same design although I do not have access to a 3D printer to make the parts you described. What could I do to work around this?
buy a 3d printer... the crealitys are pretty decent and dirt cheap.
Where can I find the CAD files to 3D print the stand supports that hold the syringe?
what is the refrence of the syringe size sensor?
G'day Dr. D-Flo. How can I go about printing variable sizes of drops of variable viscosity paste and liquid? My guess is having a camera watching the tip of the needle to control the drop size. If the viscosity is high then the drop has to contact the place of deposit and then retract when the drop sticks.
Could you control the pressure or flow?
Good Job man.
Nice one!
Would this be suitable for microfluidics?
Would this work as a small scale hydraulic pump?
Yes!
What is the flow rate for this pump?
Would you make and sell this?
the threaded rod doesnt fit the hole in the rodMountPlunger when i change it in openSCAD it doesnt render
Arduino code send me na plz
Your speaking accent, the artificial low voice is annoying to listen to. Can you speak in your normal voice next time? I like the videos by the way.
200$ is a fuck ton of money for a syringe pump and the stepper motor and driver and arduino are a perfect overkill for this project a cheaper solution will be a normal motor and varying the voltage for different speeds an even cheaper solution is to get one of these cheapo 15 $ water pump and hacking it with a attiny and a stepper driver no need for an arduino or shields that add cost with no benefit anyway have fun
Fouzai,
I am able to achieve micrometer precision with the setup. Using a DC motor or a water pump would not suffice for my end goal: the 3D food printer.