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Old 01-13-2011, 03:01 PM #1
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Default Building of Project Tiapan has begun

Just now, after debating wether to finish my apache AH-64 RC helicopter build, or start work on the Tiapan, my big projector, I went to laser show parts.

Parting with a BIG chunk of change, I ordered the following items.

1 set of DT40 Wide scanners (I love beamshows!)
1 set of dicro mounts, L brackets and Dichros

Tomorrow I will go to jaycar and buy the case.

Then I'll temporarily set it up with my 1 watt blue labby turned down to 300 mw, and try it all out. I'll also pick up a DB25 connector, and an IEC socket, and power switch.

Edit: Parts have arrived from LSP!!!


Clockwise from back left: scan amp power supply, dichro mirrors, 5v psu for 445nm laser, funny brown capacitor things, L angle bracket (barely visible), adjustable dichro mounts, scanner block, centre - scanner amps.


This is the y scanner amp - the x one looks the same except it has an X written on it.


Scanner block and galvos - the longer y mirror gives away that these are the wides.


Funny brown capacitor things. What are these Dave???

So the project got a name change - its now called "The Tiapan" or "Project Tiapan".


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Old 01-13-2011, 03:04 PM #2
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Default Re: Building of THOR has begun

lets hope it turn out to something really cool. I have no experience with shows but, they are really cool.
well, lets see what bloody 2.5W can do
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Old 01-13-2011, 03:07 PM #3
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Default Re: Building of THOR has begun

Unfortunatly, it wont be 2.5 watts - I wont be able to get enough red, without spending a fortune (for me a fortune was $836 for the galvos and dichros!)

Mind you I bought DHL shipping, and top of the line galvos, and paid aussie Government Stealing Tax.
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Old 01-13-2011, 04:03 PM #4
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Default Re: Building of THOR has begun

Dude, your going to LOVE those 40 WIDES!! I have some and they are the best!!!
I easily scan at >90 degrees- That Huge!
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Old 01-13-2011, 04:05 PM #5
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Default Re: Building of THOR has begun

I know - 90 is insane

I assume thats 45 either side of centre.

I'll have to buy a nibbler tool to cut out the hole in the case, and a file to make it smooth
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Old 01-13-2011, 07:51 PM #6
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Default Re: Building of THOR has begun

So about the lasers...

whats going inside this projector of yours?
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Old 01-13-2011, 08:11 PM #7
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Default Re: Building of THOR has begun

combined red cannot be used?
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Old 01-14-2011, 02:44 AM #8
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Default Re: Building of THOR has begun

Combined LOC builds are really not my thing. I'd rather use the brighter per mw 640nm lasers.

A 350mw 640nm laserwave costs $750. $1000 is about the limit I want to spend per laser.

So 350-500mw of 640
400-500mw of 532
500-600mw of 445

They will all be laserwave modules, apart from the 445, which will be one of the famous projector diodes in a dead 50mw greenie lab laser case, with a flexmod and anamorphic prisms for beam correction.

I will email Dave at LSP and see what he can offer me in a high powered 640, that could up the ante as far as power goes

Edit: I'm lazy - just ordered my 2U case and sundries from jaycar. Too hot to day to go running around to a jaycar store and lugging the stuff home on the bus!

All i need now is a baseplate, and some photon blasters (which I wish could be in the watt range! stupid low power reds!)
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Old 01-14-2011, 04:48 AM #9
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Default Re: Building of THOR has begun

If you want a good color balance you should probably scale back the green a bit, and double up on the 640's and combine them with a splitter cube.
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Old 01-14-2011, 04:50 AM #10
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Default Re: Building of THOR has begun

unfortunatly the higher power 640's are already cube combined. I was thinking of combining two of the 640 red 400mw for 800 mw but was advised that they are already combined inside the head with a pbs.

So if I try to pbs it again, half the power would go round the 90 bend, and the other half would hit the side of the projector.
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Old 01-14-2011, 05:22 AM #11
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Default Re: Building of THOR has begun

Quote:
Originally Posted by vk2fro View Post
I'll have to buy a nibbler tool
Do it! They work absolutely brilliant on aluminium

The 2U cases, everything but the front and back panels is actually steel. I had no luck with my little nibbler on there. Worked great on the alu though (Well, not the 3mm stuff )
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Old 01-14-2011, 05:22 AM #12
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Default Re: Building of THOR has begun

Yeah. that would make things difficult. Hmm. I almost was going to suggest combining it with a high power 650nm, but that would involve an extremely specialized dicro, since another pbs isn't possible for your above stated reason.
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Old 01-14-2011, 05:26 AM #13
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Default Re: Building of THOR has begun

what are the front panel thickness on these cases Things?

Another option I thought was to draw an outline on the case with pencil, drill inside that outline all the way around, cut the inner piece out, then file to make a nice square.

I will do this if the alu is too thick for the nibbler.

Otherwise they work great - I used to have one, but it got nicked a few years ago when my old house got broken into and my big tool box pinched.

I remember using it to cut the holes in my SGIL1 mkII argon ion supply case. I went to the pub afterward and had to raise my glass with my left hand - right hand was so sore from using the nibbler - probably because I was trying to cut stuff too thick for it
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Gassers: Omnichrome 643 Multi Line AR/KR+ ION!!!! doing ~190mW Low hours too!
Siemens 3 mw 632nm helium neon

Last edited by vk2fro; 01-14-2011 at 05:28 AM.
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Old 01-14-2011, 05:39 AM #14
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Default Re: Building of THOR has begun

For good colour balance, you're going to need more red, be it 635, 658 or 640nm.

If money is no problem, then buying a multi-658nm diode, and combining LOCs/LCCs is the way to go. You can get kits which can host up to 6 diodes, which are knife-edged and PBS'd into a beam that will actually look Gaussian at a distance.

Your other option is to use one of these kits, and buy a handful of the 150mW 640nm diodes. 4 of these would give 600mW out, which would match 500mW~ of green perfectly.

These kits are available on PL, and so are the diodes.

Your other option is to go with 635, which can be dichro-combined with 658nm (which is highly inadvisable for quite a few reasons).

With 635nm, you end up losing massive amounts of power, simply because the entirety of the beam won't fit on your galvos.

The advantage of having such a fat beam, however, is that you can hide many other beams within it, making PBSing easier.
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Old 01-14-2011, 03:52 PM #15
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Default Re: Building of THOR has begun

Quote:
Originally Posted by vk2fro View Post
A 350mw 640nm laserwave costs $750. $1000 is about the limit I want to spend per laser.
They will all be laserwave modules
DO NOT USE THE 640 LASERWAVE! DO NOT USE THE 640 LASERWAVE!!!! it will last <6 months before you need to send it back. Its a good deal now but will be the first thing to seriously break. Every single person I know that uses that module has problems with the beams becoming un-alligned and having 2 separate beams coming out the front.

<-----------------------Look at my avatar and notice how every module is LaserWave except the red.

There are a ton of threads about this topic but here is a good one to start with.. PLEASE dont throw away ~1000 on that module.

LaserWave 640nm -A question for Bridge

I know you dont want to spend MORE cash BUT the next cheapest 640's out there are KVANT...
300mW= 1400+Shipping
600mW= 1700+Shipping
900mW= 2400+Shipping


Goodluck!
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Last edited by KGB_Productions; 01-14-2011 at 03:59 PM.
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Old 01-14-2011, 04:08 PM #16
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Default Re: Building of THOR has begun

^Agreed! I'm glad you said something KGB..

Also, my own personal preference (even though I don't use the combination in my latest projectors) is to combine 650nm with 635nm. Makes for a killer red, without the orange hue that 635-640nm by itself has.
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