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Joined 11 months ago
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Cake day: October 12th, 2023

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  • Please make sure Form Labs, and the rest of the companies I have worked for, are aware of how wrong their engineers are.

    I’m not sure what the obsession is with arguing against the list of objective facts I have provided - each argument peeling away into a deeper and more obvious lack of understanding…

    Please feel free to run anything other than the recommended wavelength of UV light through a photoreactive polymer resin and let me know the dimensions of your resulting print. Remember to do it twice, so you can compare the results - the point of this discussion. Repeatable results, to 1 micron of accuracy.

    (your repeatable result will be a measurement of thin air, as your print will not cure - but feel free to try, as I’ve said.)


  • Shocking narcissism, yet again.

    You clearly have no intent to learn from your mistakes and pollute your entire argument with ad hominem and every other logical fallacy in the book - all wrapped up with a bow of dismissal of the original premise.

    Oh, and by the way, light is both a particle and a wave. “light has a size” - indeed, the wave of light we aren’t talking about has a size - called wavelength. Don’t be afraid to use the most accurate terminology for your irrelevant responses! The wavelength has zero influence on the dimensions of the final product, as any wavelength more than a couple nm out of spec won’t cure the resin at all, and there will be no object to measure. I think you know that and are just trying to win an argument by talking over the heads of the average readers on here - which doesn’t help your case.

    It’s extremely likely you legitimately have a personality disorder, and are capable of much more if you clean up your act.



  • Sigh.

    Please stop being confused about the capabilities of modern SLA/DLP processes.

    What is the diameter of A PHOTON? And don’t forget to answer ignorantly, in a condescending i-know-more-than-my-betters tone. No, seriously - look it up. You clearly don’t know.

    How many blood cells wide is light? By all means - tell me what the particulate size of photocuring resin might be? Could it be…2 microns maximum even for the largest ceramic-infused resin slurry - with sub-micron particulate sizes easily available even from Amazon? Yes - far, far smaller than blood cells. This is why you can’t let this shit get on your skin. It will literally traverse the blood-brain barrier. The fumes can get particles of this size into your bloodstream.

    Well, what on earth can I do to get 1 micron accuracy from zero-width photons and 2-micron UV cured particles? Perhaps - design my model to be LITERALLY ANY SIZE that happens to be divisible by 2 on X, Y, and Z axes, then center it on the build plate?

    Can you please get with the program, here? I’ve likely been doing this work longer than you’ve been alive. I’m not even supporting Elon’s demand, which is almost certainly unnecessary for this application.




  • The pixel alignment is a good place to start, but no 2 printers will produce an identical result at that level. That’s why it’s important to tune the model to the printer - not the other way around.

    Can you get it on curves? Yes, certainly. For 3d printers, even the position you choose for the model within the build area makes a difference.

    The question is really about executing the process of engineering in the correct order.

    The most common mistake is to design the thing you want to build first. In reality, you start with what is essentially a sketch of what a functional end product looks like. Then, you buy/build tools/manufacturing equipment. Finally, you refine your sketch into a manufacturable product based on assessment of the most reliably repeatable results available from the actual machinery as it is installed.