Build Your Own SLA/SLS

Now that I realise the Dual Motor driver WON'T work, I've ordered an A4988 stepper motor driver instead.
Should be here next week. That also gives me the option of down to 1/16th steps on the stepper. Once I get that, next week, I can measure the actual steps available with my scanner.

Now that I know my stepper motor, I need to drive it. I'm thinking of using grbl on an arduino and a pololu TB6612FNG Dual motor driver. The specs say this can also drive a bipolor stepper, but I'm having a little difficulty finding info about connecting things correctly? In other news, I just order...

Had a good look in the scanner I'm hoping to use. Scanner1.jpg The stepper is 12V 5 Ohm with 3.75 step angle with two reduction gears for the belt drive. There is one round shaft that attached to the molded plastic case of the scanner. The scanner claims a resolution of 4800 over the nearly 300mm le...

Actually, it's an Ask Proxima A1200EP which is just a rebranded InFocus IN2104EP. Got the UV filter off because I've heard the IN2104 won't cure Makerjuice with it on. Haven't touched the color wheel. Just hoping I don't need to. I can get the projector to focus sharply down to approximately 6-7 inc...

Just got my projector. Bought it on eBay for ~$50, now I know why. It's got quite a few dead pixels )-=
Now to see if I can work around those, or get another projector or replace the DMD chip in this one.

I'm not afraid of opening the projector, just more interested in how much I need to mod it. 1) Not sure the color wheel needs to go from what I've read. I know there's a UV filter glass on the bulb assembly, but from a few comments, the color wheel might be fine left in. Unless someone had particula...

Two weeks ago I stumbled across an Instructable about building a dirt-cheap SLA printer using a DLP projector, DVD Laser gantry and Legos and Kenects. After poking around here and a few other sites, which all pointed me back here, I decided I could jump into this at that price range. So, I've ordere...