General CNC Chat > Show"N"Tell ( Your Machines)
The Laser Project.
Tweakie.CNC:
Now the shadows are starting to lengthen I am preparing for my next winter project - To add a CO2 laser head to my existing router. The output power of CO2 tubes is related to overall length and the size of my machine dictates that a 600mm length tube (which is rated at 30 Watts) is the largest that I can easily accommodate.
These tubes can be something of a ‘white elephant’ insofar as that I suspect more people buy them than ever get around to completing the project. When you start to investigate the additional parts that are necessary and the cost of those parts, I am not surprised.
However I have started so I will continue.
Initially I have had to add a mounting space to the machine and some more box section with a bit of welding has produced two brackets which have been bolted to the rear of the machine frame giving a position to fit the laser stage. I have also milled a pair of tube mountings and made bungee straps to secure the tube in place.
More to follow…….
I would appreciate your comments and advice on this project as the more info I can get the better.
Tweakie.
Jammerm:
What are you going to cut? Titanium? :)
OK, I have forgotten what the power levels mean but, as a young teen, I was able to hang out at an Air Force Laser lab where my brother was stationed. They were playing with a CO2 laser, I think the tube was about 6' long. They were shooting pinholes through a cockroach and halfway through a piece of particle board using microsecond bursts. They also had an Argon laser and a Ruby laser, along with several He-Ne lasers. This was the late 60's.
I keep looking at your laser projects and may go that way once my CNC is complete. It has had to wait till winter, too much work and summertime stuff to be working in the basement.
Keep up the good work and keep us posted. 8)
Tweakie.CNC:
Think it should just about be able to cut a bit of acrylic - will be a pretty expensive mistake if it doesn't. :D
Tweakie.
Tweakie.CNC:
Mountings for the HeNe alignment laser made the same way as the main tube mountings.
Tweakie.
Tweakie.CNC:
The psu has arrived from China. This unit consists basically of a TV line output transformer capable of producing some 18,000 Volts which is on/off switchable, with a short rise time, from a TTL signal and current adjustable from a 0 - 5 Volt analogue input.
I will need to construct a new enclosure for this unit so that it can be fitted safely to the framework of my machine and this is the progress so far.
Tweakie.
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