CNC Gantry Painter Build Pics - Night 1

[vacpress]

some of the thigns about the design are not going to be the same on any setup. i do sometuff in SW jsut as a design guide, so i have at least 1 idea illustrated. i dont usually do all the final design in 3D. Its more of a reference. The only parts i used templates to cut on my current build are the 2 sides. I didnt even use the 2 inside panels, just the outsides, this is because i figured i might want to change the design.

So i would CNC 4 of the main outside Panels.. I am still not sure if i want to drive the motor directly, or if i need reduction. I am probably gonna try and do 8x multistepping and a direct drive.

[publitime]

vacpress

I really want to build a cnc color painter.
Whene i have all the parts i need i start building.
I still have some parts at this moment like slides from SKF, belts,weels.
The only thing we need is to findout a way to control the whole thing.
Thene i will see to bought the geckodrives.
In past i have worked with the nc-step drivers but for the colorpainter i will try the gecko's.
In the next day's i will look for some good stuff to spray the paint.
So i will take a injector to see wath is possible to rebuild it.
I also want look for other systems who can make a small droplet because small dropplets i what we need.
I think we can't made a small and scharp dropplet with a airflow.
Air will spray paint out on a big earya.

[vacpress]

publitime- consider xylotex drivers. they are much cheper, and depending on your motors, will ork just as well. also, consider just plain rebuilding the pixation idea.. their idea works by running along wire through a paint can, and blowing the paint off when it is at the point where its jsut the finest film of paint on the wire. the wire sort a"whicks" the paint upto the nozzles, which blow the paint dropplets off the wire and ontothe workpiece. these use 3-5 nozzles for each color. the nozzles are aranged in a pattern to make the proplets as predictable as possible?

you can read the patents related to the wirejet. they are interesting, but difficult to read.

[vacpress]

CNC Painter Development Update


has more build pictures and documentation

[ger21]

An easier way to get a semi-polished edge on acrylic. After sanding, as described above, just use 0000 steel wool on the edge. Not a full polish, but close enough. If you make a wood template and flush trim it with a router, you can skip most of the sanding. Just a quick once over with 320-400 and steel wool. If you want to try the flaming, just run a propane torch down the edge. Don't stop moving, and start fast and slow down 'ti; you find the right speed.

[sdfine]

Craftics makes cutting and polishing equipment. They have a hand scaper that will give you a pretty smooth finish and will debur the edges. They also have buffing and polishing kits if you need a glossy edge. Anything beyond buffing or flame polishing, would require diamond polishing. These machines are very expensive.

http://www.craftics.com/linedrawings/5edge.jpg