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"Serious" Paste-dispensing winking smiley

Posted by VDX 
VDX
"Serious" Paste-dispensing winking smiley
March 21, 2017 07:21PM
... maybe a bit extreme, but this too is "paste-dinspensing":




Viktor
Re: "Serious" Paste-dispensing winking smiley
April 14, 2017 06:01PM
Care to share our set up?
VDX
Re: "Serious" Paste-dispensing winking smiley
April 14, 2017 06:48PM
... 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 eye rolling smiley

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]


Viktor
VDX
Re: "Serious" Paste-dispensing winking smiley
June 17, 2017 06:34PM
... did some tests for the next exhibition - this will run in background and eventually create some give-aways winking smiley

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

[vimeo.com]

[vimeo.com]

[vimeo.com]







Viktor
Re: "Serious" Paste-dispensing winking smiley
April 04, 2018 12:04PM
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.
VDX
Re: "Serious" Paste-dispensing winking smiley
April 04, 2018 02:11PM
... 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 sad smiley

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 ...


Viktor
Re: "Serious" Paste-dispensing winking smiley
April 04, 2018 03:47PM
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?
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