maybe 4 piezo inside the edges of the vat then a ultra sound generator would keep the resin moving around without the need of pumps....
8118
Graham
eexgs
Feb 17, 2013 11:39 pm
Ultrasonic baths certainly disperse particles in suspension so might be worth a try. Or some other agitator within the bath. Graham...
8119
Benjamin Mahony
ben_mahony
Feb 18, 2013 12:21 am
We (my company) have just purchased a wide format flatbed uv resin printer, ie poster printer, though can print a little bit 3d, textures and embossed text etc...
8120
Fortino
jolly_craft
Feb 18, 2013 12:26 am
This is a brilliant idea. How to make sure it does not affect the curing resin? Do you propose to turn it on and off? Fortino? Sent from my iPad...
8121
afogassa
Feb 18, 2013 12:35 am
it would be off when projecting. don´t know how the resin would react to it thou. I´ve seeing some water oil blending being done with ultrasound maybe it can...
8122
Benjamin Mahony
ben_mahony
Feb 18, 2013 5:06 am
There are pumps for UV ink (for wide formate printers) available on eBay and aliexpress, these would be ideal because they are made for continues operation...
8123
Fernando Muñiz
fernando.inbox
Feb 18, 2013 11:25 am
Great find! ... Great find! On 02/18/2013 06:06 AM, Benjamin Mahony wrote: There are pumps for UV ink (for wide formate printers) available on eBay and...
8124
Graham Stabler
eexgs
Feb 18, 2013 11:49 am
Or vibrate some paddles suspended in the resin. Or what about a frame (square with square cut out) sitting in the tank at the bottom around the build area,...
8125
afogassa
Feb 18, 2013 2:59 pm
maybe you are right, i´ve being thinking about and i think a vibration system might work better then pumps. i just need to shake things up. A pump would...
8126
Graham Stabler
eexgs
Feb 18, 2013 4:12 pm
Magnetic stirrer "fleas" might be a neat way to do it. Graham ... Magnetic stirrer "fleas" might be a neat way to do it. Graham On Mon, Feb 18, 2013 at 2:59...
8127
Lino
creaturemake...
Feb 18, 2013 4:31 pm
I will add that machines like traditional sla’s simply use the build plate to mix the material by lowering it and raising it in between builds. From:...
8128
arthur2shedsj
Feb 18, 2013 4:48 pm
... They really don't operate continuously. They start and stop a lot. The pumps are used for transferring low viscosity inks from a fill tank to a reservoir...
8129
arthur2shedsj
Feb 18, 2013 5:03 pm
... It's called a sonicator. Chemists that make inks, photopolymers, etc, etc, routinely use them to mix components. http://www.youtube.com/watch?v=ONFk6PZ2nNY...
8130
Graham Stabler
eexgs
Feb 18, 2013 5:15 pm
... And those experimenting, its nice to be able to try things without becoming an expert in a supposed black art. I'm guessing it becomes hard to make ...
8131
arthur2shedsj
Feb 18, 2013 5:25 pm
... Other low budget *SOLUTIONS* : ...
8132
Graham Stabler
eexgs
Feb 18, 2013 5:27 pm
Too many splinters in the resin! :P...
8133
Ben Mahony
ben_mahony
Feb 18, 2013 9:32 pm
Pumps in commercial printers run nearly constantly depending on width and saturation levels of the print job, or if they are recirculating the white resin....
8134
arthur2shedsj
Feb 19, 2013 12:44 am
... Maybe you found one that does since it also must have been designed for cheap white UV ink that doesn't have a stable dispersion of white pigment since it...
8135
Benjamin Mahony
ben_mahony
Feb 19, 2013 1:08 am
I think all UV printers currently available that support White ink, use either recirculation, vibration or rocking to stop settlement in the white ink, I...
8136
joan raven
jwanett
Feb 19, 2013 2:22 pm
WoWWW!!! The show first layer in red works perfect! I was able to load the .zip file with the png's that u sent me. One think that I noticed is slic3r or even...
8137
jwanett
Feb 19, 2013 2:25 pm
Sorry!!! I answered the wrong mail!!...
8138
Sinan Demir
troy_3ddesign
Feb 20, 2013 5:08 pm
hello to everyone;   3d printer can be done with this product,,I think different and beautiful devices   http://www.youtube.com/watch?v=DQWyhezIze4 ...
8139
murilolana
Feb 20, 2013 9:52 pm
Hi everyone, This is my first post, so I'll introduce myself. My name is Murilo, I'm a product developer and intusiast of DIY stuff. I've been following this...
8140
arthur2shedsj
Feb 20, 2013 10:53 pm
... Check out Linuxcnc.org You can control galvos pretty easily with either open or a closed loop depending on your setup....
8141
Murilo Lana
murilolana
Feb 21, 2013 12:57 am
Thanks for the reply. I already have a licensed copy of mach3, so I prefer to use it, since I'm familiar with it. Is there much difference? I've seen some...
8142
Fortino
jolly_craft
Feb 21, 2013 2:10 am
Surely you can mount blue laser in XY axis while the build platform Z axis raise or lower the platform. Google: DIY stereolitography. There is a blog by Rop...
8143
Graham Stabler
eexgs
Feb 21, 2013 10:07 am
slow as hell for a small dot size Graham...
8144
Murilo Torres
murilolana
Feb 21, 2013 1:17 pm
Folks, I'm not trying to build a router style printer. For sure, that would be super slow for a 0.3mm beam diameter. What I'm trying to figure out is if it's...
8145
Graham Stabler
eexgs
Feb 21, 2013 1:42 pm
Mach produces step pulses and galvos do not work via steps so no they will not understand. You could probably accumulate the steps with a microcontroller...
