Are these galvos need to be adjusted or ??

[absolom7691]

Pics of the inside of the projector will help immenesly. Do you own an oscilliscope or any type of meter for measuring frequency?

This is why most of the people kinda get a little leary. Most of us who own higher powered lasers have alot of this equipment, or have close colleagues that do. Without this equipment, it comes down to elbow grease and process of ellimination troubleshooting.

[bnbbros]

Pics of the inside of the projector will help immenesly. Do you own an oscilliscope or any type of meter for measuring frequency?

This is why most of the people kinda get a little leary. Most of us who own higher powered lasers have alot of this equipment, or have close colleagues that do. Without this equipment, it comes down to elbow grease and process of ellimination troubleshooting.

Unfortunately I don't have any measuring device, but i have the serial numbers of the diodes inside, is it possible to ask the firm what their powers really are? The brand of the diodes is DHOM.

I will write the serials when I open up the laser as soon as I can.

[absolom7691]

The videos do not give enough to go on. I could say that this is caused by iShow, but it is hard to know. Your blanking is not working right, with leads me to believe that it is the iShow hardware, since it is a problem with the with both the blanking and galvos. It is very difficult to tell. Then again, the blanking may be working and the galvos may not be displaying the image correctly. It almost looks like the lines in the blanking could be at the same frquency as the oscillation in your X-axis. Again, too many variables. Without opening this up and taking some measurements, this is very difficult to isolate. If you had a scope to put this on, you could plot it and see it the problem is coming from the DAC.

If you pushed this at 45K at max scan angle, something in the galvo could have broken, or even something on the amp could have burned.

[absolom7691]

You also mention that the glue on the galvo mirror burned. i really doubt it, but residue from the burned glue could have gotten into the bearing causing stiction.

[White-Light]

Thank you for being kind, I live in TURKEY, I opened a laser rental service here in my country, this one is my first hi-powered laser, before this one i had several devices like 200-300 mw projectors. In Turkey there are limited sources for laser show controllers or laser projectors. You have to buy laser projectors and controllers abroad because its too expensive in my country.

Can you post manufacturer and model number?

Also, how exactly do you propose to use this laser? Into the ground, overhead?

What are your proposed venue sizes?

Do you have a power meter?

Do you know how to calculate MPE?

I'm not trying to have a go at you here, just get some facts to help you because from your early posts many of us are concerned that you don't realise just how dangerous 5W of laser power really is.

[masterpj]

Is your projector modules analog?
if yes.. start of by limiting their power because 5w is just way too much to even guarantee an acceptable amount of safety with unstable galvo's and that software.
If you have money for a 5w projector you also have money to buy better software then Ishow.
it's not good software and has a very bad reputation.

Please sir buy different software and a different dac.
and also do not do lasershows with your projector yet... especially not in public, even I don't with a 1 wat laser as I first want to know that I can guarantee audience safety to it's maximum.

[laserwinkel]

this seems like a pufeng 112 system

i do not have experience with this company yet but i have had a similair problem with a laser from china.
i fixed the problem by replacing one of the galvo's only (not the driver)
it may have been broken by the iShow dac that is giving a too high voltage to the scanners.

the line you see at the video - - - - - where you show a circle is caused by iShow
you really should get another controller then iShow there are no security features availible in that software.

[bnbbros]

I will buy phoenix or quickshow as soon as i can,

As I said before, the options in my country about laser projectors and laser show controllers are very limited..

By the way I fixed the problem,

I am uploading a video about how I fixed it and some pictures of the projector for those friends who wants to see inside of it.

[bnbbros]

This link is for the repair video ;

http://www48.zippyshare.com/v/81726917/file.html

These ones are the photos

http://i1105.hizliresim.com/2011/5/12/2006.jpg

http://i1105.hizliresim.com/2011/5/12/2049.jpg

http://i1105.hizliresim.com/2011/5/12/2051.jpg

http://i1105.hizliresim.com/2011/5/12/2058.jpg

Finally my problem is fixed, The I-SHOW thing caused it, It was my mistake by using it..

[absolom7691]

Yeah, iShow is fine for a 4.9mW green and 12K galvos. I would definitely not use it on something like this. Also, looking at the video, if you run the galvo with the back cover off, it may not work right. The position detectors inside the galvo are infrared. Any outside light will affect the position detector and will cause it to run erratically. If it is working now, great.

5W of power... the only thing I can say there is, laser safety is an absolute must. Most, if not all the members on this forum hold safety in the highest regard and in a lot of cases, they will refuse to help someone get a laser going if they are not confident that the operator knows ALL of the dangers involved. 5W of power is enough to blind someone. At the very least, even the most brief exposure will permanantly put a large dark spot in your vision. No one is trying to take jabs at you or be rude, they are simply concerned with your safety as well as others. These are dangerous devices. This would be catagorized as a Class 4 laser. My advice is to learn as much about this class of laser as possible and study ALL of the safety protocals before even attempting to operate this in public. I would also recommend learning the theory of operation of lasers in general to get a grasp on what these devices are. I am not sure about the laws in your country, but here in the USA, the laws are very very tough. There is a lot of information on this forum regarding laser safety. Read as much as you can and ask as many questions as you can think of. While we may be hesitant to help get this working at full power, no one will hesitate to give you the benefit of their knowledge when it comes to safety. Please take this into very serious consideration as this affects your health and the health of others.