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The filter is thick enough to affect your focus point.
idbruce wrote: »
This is all dependent upon whether I destroy my webcam or not, by shining a laser beam directly into it
I would find a lens with a long focal length. It will significantly improve dot size variations due to these variables.
Perhaps 598 dpi is overkill for making prototype boards. How about going for a pixel size closer to the minimum feature width on the pcb. That would make the mechanics simpler and decrease scanning time.
Just sharing experiences in the hope it helps.
idbruce wrote: »
As mentioned, this machine is designed around the EAGLE maximum board size for their freeware, so of course, considering the size of the board, it is not going to be a big machine, in fact it will be quite small...
Keep in mind that KiCAD has no area limits, and Mentor's very new PADS Maker, has a simple 25 square inch area limit, which could mean 12.5" x 2", so focusing on one vendor's free solution is inflexible...
PWM that nice and low, like 1/4096, and you should have no issues with the camera.
Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC. Application software can access the USB device in the same way as it would access a standard COM port.
Besides working on this code, I now have my LCD display attached to the Prop BOE, and have been toying around with that a bit. I still need to do the bread boarding for the required pushbuttons, to navigate the file system. The pushbuttons will likely be comprised of the following:
scroll file list up the LCD display
scroll file list down the LCD display
select file or folder
reset LCD display to current directory
go to parent directory