Recent content by Humphry

EDIT: See you replied via email, thanks. Hey there Scum, Did you get my message re the Sensor? Also would like to know when it was last calibrated.. I believe the readings drift off after a while. All the best :thanks:

PM sent.

I get why you would think it works like that, but spinning actual lasers is a much more costly way of shooting lasers on to a spinning mirror. Try this: Glue a mirror on to an old PC fan or motor and shine the laser at the mirror from close USING EYE PROTECTION. Smoke a cigarette in the room...

Hi all. Can anyone comment on the reflective efficiency of the thicker mirrors supplied with the optics set with 635nm at 45deg (as one would see in a knife-edge setup). When I turn it toward that direction it seems to reflect more yellow/green than red. Would I be better to go with the fs...

Please PM me with calibrated LPM with TEC included, and shipping to South Africa.

I built a soundcard DAC about a year ago and I must have spent over 50 hours total assembling, tweaking, re-tweaking, re-installing drivers. The newfound freshness quickly evaporated and I realised how worthwhile buying a DAC would be (even if it is iShow). Anyway I am here to help not convince...

Thanks for your review. I just tried out QS and to be honest I found it quite limited for making laser shows. (Please no one judge me!) I am skeptical of getting a demo version of LSX from Dr Lava, right now I can't even register on his forum. Fingers crossed. QUESTIONS: 1) Does LSX offer...

Externally. It was truly awesome, and not alone in the crazy mass of Afrikaburn artworks

My signal is NOT selected to be inverted in LFI so when I unplug the card, everything pops to max. As far as I am aware the two options each have their drawback: Non-inverted: Safe as long as the usb card stays connected Inverted: No sofware crash protection, but safe against mechanical...

My problem: Hotplugging the soundcard pushes all channels to max output The goal: To run a safe show I have tried so far: a) Relay linked to +12v and the usb 5v line ---> sucks power from USB making card useless b) Solenoid to +5v usb ---> too delayed c) Using usb 5v to power the correction amp...

Hey Rob. I loved the obelisk. Do you remember when I came to say hi? I was the young blond guy. I would love to be involved in some sort of laser project next year for AB if you're interested. I just finished my own 1W RGB 30k scanner unit, analog controlled. Where did you get your lumina...

Cool idea James, thanks! What's the story with that avatar? Its my favourite!!! I feel rather honoured that I received one of your 39 posts here on LPF. :wave: yay Love your software and I have been reading tons on the laserboy forum. Have come a long way. Long way to go. ANYWAY! QUESTION: Does...

Hi Ben and thanks for the reply, as to everyone else! I decided to scrap the laserboy correction amp and use your (ben's) TL082 correction amp which you posted a while back! Thanks all for your help.

Thank you so much for your reply and helping me out. #1) Which alternative IC? Would the TL082 give the improved voltage or is the TL072 fine? #2) So there is a positive and negative signal coming from one single connection which is fine BUT the galvo driver connection is as follows: (+)(G)(-)...

A friend of mine says although this style correction amp uses -12v, it does not incorporate -12v (or is it -5v?) into the output, meaning your scanners will only get a positive voltage, limiting your scan angle. Is he correct? I can post the schematic but I assume someone will know this off...