"Serious" Paste-dispensing

... maybe a bit extreme, but this too is "paste-dinspensing":

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Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

Care to share our set up?

... it's a cartesian style machine, "armed" with a piezo-driven nozzle from Vermes, normally used for glue or solder paste dispensing ... the nozzle is roughly 3x more expensive, than the machine

Here a video or first testing, showing the complete setup - [vimeo.com]

... another test, a bit of the software too - [vimeo.com]

... and trying the speed limits -[vimeo.com]

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Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

... did some tests for the next exhibition - this will run in background and eventually create some give-aways

"CNC-Simply Paste-jetting +UV-curing"

[vimeo.com]

[vimeo.com]

[vimeo.com]

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Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

Hi Viktor,
I was reading your other posts about your piezo dispenser.

Do you think some form of DIY version is feasible?

This simple bimorph piezo actuator costs 20$:
[www.steminc.com]
Here in action:
[www.youtube.com]

Here is another one with an amplified motion mechanism:
[www.youtube.com]

Edited 1 time(s). Last edit at 04/04/2018 12:07PM by heinz.

... the thin-sheet actors are not "strong" enough to push the fluid directly ... but could be redesigned for different behaviour.

The "clamped" bimorph stacks are known as "torque-drive"-actuators - I have a tweezer with this type of PZT-actuator, which can open/close the tweezer with 300µm moving range and frequenzies of some Kilohertz ... but not cheap enough for DIY neither

Actually I have another "pulsing" paste-dispenser for testing, where the piston is moved per pneumatic -- some hundred Hertz, end customer price maybe around 1000 €uros ...

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Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]

Thanks for your input and keeping us updated about more industrial equipment. Hard to find non-corporate infos on those..

Do you know what is used in your piezo dispenser? What piezo and what mechanical amplifier?
No chance a light, more crude version could be somewhat affordable?

What solenoid valve does your pneumatic piston use?