Tweakie is pretty demanding as a non-paying customer
The Mach3 engravings he has done are very impressive and much better than we expected possible with Mach3. Congrats at finding those settings.
We will post more pics when we get a better macro camera. In the meantime, please feel free to order a cut sample from one of our partners:
http://www.fullspectrumengineering.com/ ... hp?f=3&t=6There are a lot of issues involved in getting a good engraving but we've already said our controller is bit perfect.
There is nothing better than perfect
Maybe your laser power supply can turn on/off faster or your beam spot size is smaller with a short focus lens but those are unrelated to the controller.
When the 1-bit bitmap image is black, our laser fires exactly at the right time for the right duration and that's pretty much all you can hope for in a controller.
We can do it perfectly at 1000dpi at 2000ipm or at 4000dpi at 6000ipm. It's all switching time limited by then. Our controller runs at 400MHz.
There also seems to be some confusion about image processing.
Perhaps we should revisit what are digital images. Images have pixels. If you want perfect representation you need to have your system EXACTLY matched to the resolution of the image.
How you went from 1000 dpi -> 600 dpi -> whatever the step resolution on your laser is a mystery.
1000dpi->2000dpi or 3000dpi or 4000 dpi is ok. Integer multiples will just repeat the data of the corresponding pixel.
But if your 1-bit image says point (100,100) = 0 at 1000dpi and you scale that image to 600dpi, what will that pixel say now? When you output that image on your laser, does it fire or not fire on that spot?
For optimal output you must understand the basic principals involved in outputting the image.
Outputting pretty images is fun but true science requires a more careful analysis. We have specific test patterns that are generated using math software that we use to test specific conditions.
One of the best tests is analysis on a high speed digital logical analyzer then reconstruction of the image from the captured data. This takes other factors out of the equation.
Finally, let us remind you Lightobject doesn't manufacture anything. They just import some controller from China and resell it. John is a really clever guy and we are very impressed he was able to get that controller working but you can see from the beginning of this thread it was a several week if not month effort.
When Bart needed to get his system working, we were able to recompile the firmware and adjust the step pulse time from 1us to 4us to accommodate his Gecko drivers. Try getting something like that done with any other manufacturer
We are not saying we will attend to all random requests but if it affects many users then we will do our best.