ILDA Compliant Projector Safety Board...

[buffo]

Are you ok if I make some PCB's of your design for other forum members?

Be my guest! I put it up in the gallery so others could use it if they want. If you want to make a board and sell it, that's fine too.

I believe that parts of the BS EN 60825 standard are being accepted by your CDRH now.

That's correct; Laser Notice 50 allows the use of portions of the IEC standard to be used in leu of the companion sections contained in 21 CFR 1040.10.

If you are interested Adam, I uploaded the entire document to the FTP "docs" directory a while back.

Thanks for the tip! (Off to the FTP server...)

Adam

[f22warzone]

I would be willing to buy one of the boards if some body wants to make them

[SrS]

Based on Adam's design.

Please note that this is a sketch only, not tested

[mccarrot]

I have updated my killswitch over ethernet design:

http://www.photonlexicon.com/forums/...532#post124532

[sugeek]

Did the stanwax boards kill this project?

[mccarrot]

No, the emergency over ethernet is live and working in our projectors.

We only need one cat 5 cable to the stage to start or stop the projectors.

Rob's board is more designed for a separate cable.

[LaNeK779]

maybe i am asking for too much, but then again, maybe it is easier than what i think or maybe it is of interest to more people and it can actually happen

so... i imagine a board that would combine all / many of the features found on many different boards (i have in mind rob's boards because these are the only ones i know)

features could be

- ILDA breakout board (6 channels, intensity, shutter, the whole lot)
- ILDA interlock loop, case interlocks, shutter driver, delayed start-up, manual reset, commanded start-up)
- Connection for key-switch, remote kill switch, e-stop (if applicable) and appropriate light indicators
- Shutter driver (so far stanwax's ilda board fits the bill)
- ILDA in/out (maybe even an ILDA splitter)
- buffered in / outs (these two can be covered by brigg's MatILDA)
- some sort of colour correction feature (DZ, stanwax boards)
- X, Y invert switches
- X, Y size pots
- "manual mode" of colour intensity and a built in quad-pattern generator (like the ILDA GEM)
- some elementary form of fan/temp control ( a couple of sensors and a couple of trim pots)


so, imagine this board packed with all those features, coupled with a pre-drilled and labeled back panel and you have the highest possible standard, feature and simplicity in signal wiring and safety in our boxes

I know this is a pretty long shot, but i do remember something similar (minus a few feats) from rob 2-3 years ago, built into another PL member's backpanel (which i can't remember who it was)


well, dreaming is free, isn't it?

[stanwax]

I am currently working on a number of laser projector based electronic projects one of which will be ilda board 2.0
There will be some new features and it will be made using smt. Its in development now but wont see light for a month or two, I will be producing a dedicated internal board as these have proven so popular though this will be an interim based on the original board at this stage. I will also shortly be making a panel available to allow easy retro fit of the panel mounted board to any projector. There will be 3 options - ilda board only with ilda in and remote, ilda in/out plus remote and finally ilda in/out, remote & axis switches.
There are some other features that I will not divulge at this time - mainly because they may not make it into the final design or I have not yet come up with the best configuration. I need to make sure there are lots of features but keep the flexibility to allow different people to apply the board to differng designs.
One thing that will be in is the ability to jumper up some connections allowing projectors using the boards to daisy chain and run back to a single e-stop down the ilda cable or by a single lead to the first remote in the chain. This is already possible and I have configured a number of customers systems this way with great success. There will be an addendum to the current instructions to detal this mod that will appear for download on my website by the start of next week.

Rob

- ILDA breakout board (6 channels, intensity, shutter, the whole lot) Intensity not available currently - but these days who uses it? - I know this is not a reason to ditch it but.....if there is a demand I will put on a pair of pads so that a 2 pin connector can be added by the end user
- ILDA interlock loop, case interlocks, shutter driver, delayed start-up, manual reset, commanded start-up) currently catered for
- Connection for key-switch, remote kill switch, e-stop (if applicable) and appropriate light indicators remote interlock designed to go to e-stop and has start button and laser status LED included
- Shutter driver (so far stanwax's ilda board fits the bill) shutter driver will currently drive low current solenoid type shutter - mod available for GM20 with or without driver - more options on new board including electronic shutter
- ILDA in/out (maybe even an ILDA splitter) current board has ilda out or ilda IN/OUT option can be used as a splitter
- buffered in / outs (these two can be covered by brigg's MatILDA) if the buffering is required internally to the projector then our modified Matilda called Buffy will do the trick - no plan to have this on Ilda board but if you use the colour board add on then you have buffered signals anyways
- some sort of colour correction feature (DZ, stanwax boards) no plans to include this as the current system works fine in piggy back - The colour board is small but if included on the ilda board it would double the size of this even when ilda board goes smt and making it less easy to fit into any projector plus not eveyone wants this feature
- X, Y invert switches can easily be wired now but new ilda board will accomodate for solid state axis flip and X Y swap
- X, Y size pots easy to wire in to any system and I would say better to have external to the board so that fitting is easily adaptable for the individual taste (and optional). If there was interest I would be happy to supply a board with 2x pots and an in and out connector for easy of wiring
- "manual mode" of colour intensity and a built in quad-pattern generator (like the ILDA GEM) no plan to include this - a separate tool that you can pop in your tool box makes more sense.
- some elementary form of fan/temp control ( a couple of sensors and a couple of trim pots) no plans to include this but would not be against including if there was some feedback suggesting it was wanted

[LaNeK779]

WoW!!

that must be close to the fastest dream come true i've had so far!!
Thanks Sir Rob, this should be well worth the wait (and i am in no hurry)




dare i say (again), we are one step closer to an entirely PL designed and implemented laser projector? we have cases, tec controllers, electronics boards, diode drivers, laser modules, optics, mounts. all we need is a PL greenie and a PL power supply oh... and the scanners of course (but i guess we could settle with ready made ones, couldn't we?)

[taggalucci]

I've just seen Rob's response since I write the following, but I'll post this here anyway. I must say I'm keen to hear more of what you have in mind Rob, as I'm currently using your boards on my more serious projectors. The daisy-chainable single-remote is something I'm very interested in and have started some designs of my own on. I have been trying to figure out how to have all the indicators that are relevant available remotely, with remote run (and of course (e-)stop), key switch, laser warming mode all carried via the same CAT5 as the network signal to the DACs and be safe (not rely on digital components for the interlock circuit). I have a draft that's ready for proof-of-concept development. Perhaps this is for another thread.

Back to your post LaNeK779...

maybe i am asking for too much, but then again, maybe it is easier than what i think or maybe it is of interest to more people and it can actually happen

so... i imagine a board that would...

I dont' know about others, but I'd prefer most of these functions to be modular because a fully featured 6-channel board would mostly be overkill and add unnecessary cost in many instances.

Every serious projector's going to need the basics like interlock, remote, shutter, switch and indicator connectors. So I'd assume any base-board would have these.

I agree with having inverts, though they're so easy to implement between the board and the drivers is there really a need to have these implemented on-board? Something to be mindful of is that having the inverts easily accessible could make your BAMs invalid/dangerous if bumped. I'm thinking of changing my projector's Y invert to a 2 position key switch for this reason.

For me, projectors should not need size controls. If the scanners are tuned to a specific angle/rate then they should only be run from the same DAC if they share the same angle/rate. Say there are two projectors with different angles being run at the same rate on the same DAC, if you have to reduce the size on the better performing scanners then you're really missing out on the available performance of the better scanners. Upgrading the other scanners or buying another DAC seems a better way to go then size controls. Just my 2c of course.

I think an ILDA I/O board with at least 3 buffered colour channels should be standard, with the potential for adding further modularised buffered colour channels.

I think a great modular add-on would be colour correction on either a channel by channel or 2 or 3 channel basis. I also like the idea of having the colour correction capability extended to include tuneable compensation for non-linear response curves. I can imagine a calibration procedure done under nominal conditions whereby a piece of software runs through a sequence of colour signals, whilst receiving LPM data from the projector output and adjusts the response curve controller to compensate.

I think non-IO related capability (like fans and temperature control) shouldn't be bundled, as the requirements can vary dramatically between projectors, just in the same way as power supply for scanners and lasers.