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  • RicoW2 commented on JwalantB's instructable High Power Switching Control8 weeks ago
    High Power Switching Control

    Hi interesting looking project. Wondering how the values of the snubber circuit would change for 110-120vac? Sorry, was not good at dynamic circuits...guessing half their values, but...? And sounds like snubber only used for inductive circuits, so if using LED light instead of incandescent, would not need snubber at all...is that right? Appreciate in advance your responses.

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  • RicoW2 commented on GreatScottLab's instructable Make Your Own LED Stroboscope8 weeks ago
    Make Your Own LED Stroboscope

    Hi am interested in Arduino project but do not have dev env set up yet. Do you have text and .jpgs of the code and schematic?Also, wondering what freq range it handles, ballpark...? Thanks.

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  • RicoW2 commented on sideeffect001's instructable Threads in 123D Design2 years ago
    Threads in 123D Design

    Hmmm, I have not worked with loft before. I do it all and get the lofted thread, except it comes out as a 2D (flat) spiral instead of having triangular thread cut. What happened?

    Oh. Maybe this technique only works if loft is greater than x, so that there is enough pitch between each 20 degree image to get the thickness you want. Mine is a precision thread with only 1mm between threads. Base of thread needs to be 1mm wide, and thread is 0.5mm tall. Maybe technique will not work. I have tried to rotate a triangle around a circle but that technique has a problem when it is time to tweak the break in the circle and raise that end triangle up 1mm.... 123D only will allow me to tweak it upward at an angle perpendicular to the top triangle edge, rather than parallel to the inner edge of the triangle (extending up in Z direction).So...stuck on how to make a triangular blessed thread.

    Oh here we go. Looking like if I rotate the images in Z direction so that rather than flat they are tilted, that that should do the trick. Just a matter of doing the math to get the right thickness at base (1mm).

    Yay! Just rotated the image 90 degrees to make it vertical along minor axis, and used the desired 1/2 thread rise divided by 9 rotations, per your excellent instructions. Had to place a platform under the thread object, to use its center for all my coordinate system manipulations. Added fillets at top and bottom to clean it up.

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