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StarWarz CO2 Power

3zuli

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what about using some high power LiPol batteries used in airplane models?
like this HobbyKing Online R/C Hobby Store : 45C Discharge
for example, the 1st one should give up to 99Amps
 



Mr Despair

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I would actually be willing to buy one of these if you ever plan on making and selling.


How much did it take to make this one?
 

Hemlock_Mike

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The tube is excited by RF energy at about 27 MHz.

As for costs ----
CO2 Tube and PS --- $350
32 Volt source --- 140
PWM driver --- 30
ZnSe Lens --- 100
Housing --- ?

Prices depend on what you want to do. This is approximate. If you want a beam expander, add another $80. Some of this is dependant on you doing the machine work and assembly.

HMike
 

Hemlock_Mike

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Those "hobby" cells are small and hold a lot of energy for the size. For now, I staying with standard round cells -- I think these will do fine.
Thanks for the update on cell technology however. Those may someday make for small POWER!!!

HMike
 

Drivinfast247

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They are actually round cylinder type cells. Just so ya know. BTW nice build.

Here is one with solder tabs
 

Hemlock_Mike

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My 25650 cells are rated 2C but someone on CPF said they would easily go > 12 Amps. So far, These are great cells.
I don't have video knowledge but the laser lives again.

HMike
 

Arayan

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Ultimately, how much voltage and current requires the StarWarz?
 

Hemlock_Mike

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Arayan --

My particular laser and driver requires a single 28 to 34 volt DC supply providing 12 AMPS! These 8 cells at full charge have 33.6 volts and easily light it up. If I turn down the PWM driver, it will drop to about 6 Amps and ~ 3 Watts output.

HMike
 

Hemlock_Mike

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Arayan ---
I'm now to the point of determining the focus adjustments for my 2.5x and 4x expanders. It is difficult because the paper targets start burning in the house before I get the spot size set :eg: I have set fire to cardboard at 35' with the "long" expander.
I also need to add the targeting laser and maybe a fan.

HMike
 

Arayan

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I think that for a "thermal demonstration" you don't need to focus the beam, right? :D However it is always better to focus the laser beam to obtain a more impressive result.

BTW have you built the beam expanders, or you bought them?
 

Hemlock_Mike

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The beam will burn without focusing -- about a 0.2" dot. A 5" FL lens is good for close up stuff.
I build my expanders. The 2.5x expander is shown on the front in the picture.
Remember, use ZnSe "glass" lenses. They are yellow colored.

HMike
 

Arayan

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Thanks again :) ...you use some special material for blocking unwanted scattered radiation (at the end of the beam)?
 




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