Adjustable focus laser head

[Krame (Mark)]

I guess I’m surprised that for something that’s so finicky like focus, why a spacer block and a telescoping lens tube wouldn’t be easier than a table?

Who has converted to Lightweight Head?

I have Russ’s head, ‘rack & pinion’ and tube/mirror mount on mine. I like it very much. Don’t get too excited with the ‘high’ speeds, your stock machine is probably capable of ‘out running’ your lps response time. I’ve had mine up to 1650mm/s, great fun, but pretty useless, as far as I can tell. If you’re trying to do something, you need to keep the reality (physics) of what’s going on in perspective. Lps are rated at 90% power <=1mS. Assuming the 1mS, the fastest it can respond is 1s/100…