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- Aug 16, 2007
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Hi!
I have a few questions about scanning and various other laser show related questions!
1.) What IS TTL? From what I've picked up, it can be used to turn the laser off on and off really quickly. Is this part of a feature of the laser or the driver? i.e. if I bought a cheapo DX labby laser, could I add TTL later to it?
2.) Analogue Modulation - I'm guessing this lets you have various 'shades' of colour inbetween the On/Off of TTL. Are these really that more expensive? And again, is it a feature of the laser, or the driver circuit?
3.) When lasers (such as the Lanling ones) say TTL upto 30k, does that mean it has to match the scanning speed of the galvo's? so I could only have a max of 30k galvos? or if I had a 10k TTL laser, does it mean I can't use more than 10k galvo's?
4.) What is a scanning angle? Why is it important? and why do the points per sec, change on the angle?
5.) Laser show software - I can hardly find any manufacture's websites for laser sofware, I know about the pangolin one, but would something like this work well? http://cgi.ebay.co.uk/iShow-Laser-S...ryZ14984QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
EDIT: Found the EXACT same version (minus UK plug) on Chinese dept. store for half the price! http://www.chinesedepartmentstore.com.cn/osc/product_info.php/cPath/54/products_id/1915
6.) Galvo's - Why is the best and cheapest place to buy a decent set? I'd love to do really detailed animation , but I know this is not possible with cheap galvo's. So what is the happy medium?
Links + Prices?
7.) I want to start off with a 1 colour system, then turn it into a RYG system and then the full blown RGB. I DON'T want to keep replacing parts, just adding more lasers! So what do you think is the best roadmap? Stick with TTL, or invest in analogue gear? or is it too expensive?
8.) So for a laser scanning system that is PC controlled, I'd need the following: (please correct if wrong)
1x + laser + PSU
2x Galvo's + AMPs + PSU
1x Software
1x DAC
1x PC!
A box and some fans!
BTW: Andy your guide is excellent, and made me want to make my own - the dolphin animation is FANTASTIC!!!!
I have a few questions about scanning and various other laser show related questions!
1.) What IS TTL? From what I've picked up, it can be used to turn the laser off on and off really quickly. Is this part of a feature of the laser or the driver? i.e. if I bought a cheapo DX labby laser, could I add TTL later to it?
2.) Analogue Modulation - I'm guessing this lets you have various 'shades' of colour inbetween the On/Off of TTL. Are these really that more expensive? And again, is it a feature of the laser, or the driver circuit?
3.) When lasers (such as the Lanling ones) say TTL upto 30k, does that mean it has to match the scanning speed of the galvo's? so I could only have a max of 30k galvos? or if I had a 10k TTL laser, does it mean I can't use more than 10k galvo's?
4.) What is a scanning angle? Why is it important? and why do the points per sec, change on the angle?
5.) Laser show software - I can hardly find any manufacture's websites for laser sofware, I know about the pangolin one, but would something like this work well? http://cgi.ebay.co.uk/iShow-Laser-S...ryZ14984QQrdZ1QQssPageNameZWD1VQQcmdZViewItem
EDIT: Found the EXACT same version (minus UK plug) on Chinese dept. store for half the price! http://www.chinesedepartmentstore.com.cn/osc/product_info.php/cPath/54/products_id/1915
6.) Galvo's - Why is the best and cheapest place to buy a decent set? I'd love to do really detailed animation , but I know this is not possible with cheap galvo's. So what is the happy medium?
Links + Prices?
7.) I want to start off with a 1 colour system, then turn it into a RYG system and then the full blown RGB. I DON'T want to keep replacing parts, just adding more lasers! So what do you think is the best roadmap? Stick with TTL, or invest in analogue gear? or is it too expensive?
8.) So for a laser scanning system that is PC controlled, I'd need the following: (please correct if wrong)
1x + laser + PSU
2x Galvo's + AMPs + PSU
1x Software
1x DAC
1x PC!
A box and some fans!
BTW: Andy your guide is excellent, and made me want to make my own - the dolphin animation is FANTASTIC!!!!