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Iowa Printer update

Submitted by sharpe on Thu, 08/21/2008 - 09:37

Hi,
Great meeting everyone in Colorado! I heard back from the Epson repair folks and the cost to repair our printer was $906. That includes a new print head which is $405, an upper housing assembly, and 6 hour labor. I was hopeing that one could purchase a new print head for less than the cost of a new printer with the thought we could do our own repairs, oh well.

My plan is to purchase an air brush and try to develope a procedure spraying the metal nitrate solutions this semester.

Question: Can the Lego Motors be programed to do a quick acceleration?

Lee Sharpe

The LEGO motors can be

Submitted by rdherric on Thu, 08/21/2008 - 10:34.

The LEGO motors can be programmed to move pretty quickly, although I think that errors due to deceleration seem to add up as a result. What were you thinking about doing? I am happy to provide source code to you!

Robert

I am interested in mounting

Submitted by sharpe on Thu, 08/21/2008 - 11:25.

I am interested in mounting the airbrush on a Lego setup and use the third motor in the Mindstorms kit to quickly rotate with an acceration the airbrush over the substraight to get a concentration gradient. That would be great if you could write some code for me. I would need to be able to experiment with the acceleration to get the coating thickness correct so either have that as an program option or teach me how to change the code to vary the acceleration rate. Thanks

Lee

constant speed option?

Submitted by craymond on Tue, 08/26/2008 - 15:05.

Lee,

Wouldn't it be possible to pass the nozzle in an arc for a gradient? Then the speed would be constant and maybe easier to establish. I'll sketch a couple of the ideas I had or maybe assemble examples and photograph them.

Casey