It looks really cool acumen, you nailed it, i like how you did different colors for the keypad
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Personally, i use splines too to do cables / tubes with the render in viewport option on. (3dsmax i assume)
I do that with a bezier curve to have a lot of subdivisions, i collapse it's modifier pile into an edit poly, and then optimize the mesh by selecting the edges with loop selection and delete them with CTRL + BACKSPACE ( or add some by chamfering a loop).
Never really had a problem ![]()