Completed Inkshield kit.

The goal here is to see if UV resin can be sprayed through an inkjet nozzle.  This may allow construction of an Objet-like printer.

Inkshield kit

I finally have all the pieces for my ink shield kit. My intent is to see if I can use to and shield kit for a UV printer. I'm going to have to experiment with the UV resin to see if I can use the ink cartridge to emit it.

Up and running.

My CNC machine appears to be working great! A few more tweaks and it'll be perfect.

An idea for a 3D Printer

Ok, an idea...

The idea here is to create a printer that uses an x/y stage like an FDM machine. On the Z-Axis, there will be a mechnism for depositing a UV-curable resin. This resin can be cured quicky by the placement of a UV light source pointed from the deposition head. The depositor can be comprised of one or more piezo print heads. These print heads can either be re-purposed from inkjet cartridges, or built independantly (Parameterized Printable Inkjet Head

http://www.thingiverse.com/thing:5194 )

Design Goals

One design goal is to have a very accurate and fast X/Y stage, while the Z-stage needs to have micron accuracy(hopefully). The real question is the emission rate of the UV resin from then depositor/emitter? The UV polymer liquid I have is very thick at room temperature, but becomes very viscous when heated. I need to investigate the frequency and amplitude of the driver circuitry to be able to vary the rate of deposition of the polymer. I also need an accurate measure of material consumed.

Hardware

I may need a heater element to pre-heat the UV resin in the emitter

I may need a peristoltic pump to pump the resin into the emitter.

I'll need to either alter my makerbot, fix up my rep-rap and reprogram it, or hopefully build a new Type-A machine that I've been waiting to cut.

Software

I will need a way to activate/set the rate of this emitter.

Can it be done through G-code commands.

For multiple emitters, can I specify a line's worth of data and an origin/vector with parameters such as dpi and have the firmware do the rest?

I will have to write my own slicer or modify an existing slicer program to support he new Gcode commands.

Color and format

If I go the route of using inkjet printer cartridges, I can support full-color printing with the addition of multiple print cartridges. It may be worthwhile to reverse-engineer a print head that supports multiple colors and multiple line emitters (8x 16x 24x) for each color.

If I can devise modifications and additional commands to G/M code, then I can specify commands to define a line of data in a format, the format of that data (Dots per inch, number of samples, color format of each sample, UV resin deposition can be treated like another color channel, deposition rate )

Interface

I could write my own firmware, or modify some other FW for Arduino-based devices.

Additionally, I can use my Raspberyy Pi computer at a front- panel compter. This RaspPi will control the Arduino or printer controller card that interprets the gcode.

This RaspPi could act as a print-server, controlling lights, camera, prividing a front-panel GUI on the composite LCD with a control button panel. The RaspPi cound be a network print server over TCP/IP

Raspberry Pi

I'm in the process of setting up my RaspPi device with a composite lcd. My intent is to configure this to be the onboard computer for my next 3d printer.

Mill is fixed.

I fixed and attached the motor for the x axis. The Z Stage needed a motor swap as well. I think everything is 100% now. I'm going to find a good gcode file to made this machine run through its paces.

Zombie Cookie Cutter!

 Last week, I was chatting with my friend Andrea, and she asked me if I could make a zombie cookie-cutter. She does a lot of baking, and said that people would pay a lot of money for something like this. I went ahead and found an image of a zombie cookie cutter, traced it in Inkscape ( http://inkscape.org/ ), and turned it into a vector that I imported into OpenSCAD (http://www.openscad.org/).

A half hour later, I had a new Zombie cookie cutter, ready for use.

Z-axis successfully rebuilt

Now I've gotta fix the x axis and it'll all be good.

New Z Axis

My CNC Mill

Well, I'm finally getting back to work on my CNC mill. The Z axis has been broken for sometime. I used my 3d printer to make a few new needed parts.

MAME Cabinet

Here's the donor TV. It's a 22" Sony Trinitron I beleive. I had to de-case and de-cage the TV so it would fit into the back of the machine.
















Here's the cabinet with the new TV installed. I built some wood rails to fit the tbe into the cabinet. I mounted the TV chassis behind and underneath the monitor.





















Here' my cabinet a little better put together. Now, I need to install the computer, configure the software, and hook up some various peripherals. I can't wait to kick someones ass in Mortal Combat :-)

MAME Cabinet update

Here is the 25" monitor I removed from the arcade machine. The chassis had gone bad and collapsed the image into a single horizontal line. When I get around to it I'll probably fix the monitor and ebay it. I decided to replace the monitor with a standard TV Set that has SVideo input instead, not quite as nice as a true RGB input monitor, by nice nonetheless.






Here's a pix of the arcade cabinet, Sans Monitor.
The project is really starting to come together.

My MAME Arcade Cabinet

Hey Everyone. My name is Steve Hernandez, and I'm a computer programmer / hardware engineer and general all-around-hacker. I've been working on dozens of projects / hacks/ code projects over the years, and I've decided to finally start documenting them. For my first project installment, I'm documenting the rebuild of an Arcade Cabinet into a MAME machine. I've rebuilt 7 Arcade cabinets like this before, I'll see if I can dig up some old pix.

What I'm staring with is an original early 90's NEO-GEO arcade machine. I bought the machine at an arcade auction several years ago for 30$ broken. Once I got it home, I fiddled with it a bit and got it working. However the 25" monitor quickly blew out. I stuck it in my shed and forgot about it for a few years, until a few weeks ago. I decided to strip the machine and part it out on EBAY. It had a working board set with King of Fighters and Bubble-Bobble.

Well, I knew that I could play those games again when I got the machine fully converted to MAME.