Converting K40IV CO2 Laser machine to DSP

[Tech_Marco]

Update (8-4-2011):

Found a new problem by boosting the T-H to 5V. The output file seems more 'flat' See attached images. I think the 5V push the power supply in 'satuated' mode. I'm going to try 4.6V later

Cutting is good as it now can cut 3mm epoxy glass without a problem.

Marco

[Tech_Marco]

Updat(8-4-2011, evening):

Found a solution. I dropped the 5V booster module. Then, adjust the power output control on the power supply to 19mA max. With the Analog circuitry that I installed on yesterday, actually it worked as it used different output signal patten to control the fire. The "TH" singal is not a constant 5V but variable, as opposite to a PWM power supply to which the TL always 5V (or closed).

See attaced images (a little bit over burned as I keep changing the power)

[TeacDance]

Updat(8-4-2011, evening):

Found a solution. I dropped the 5V booster module. Then, adjust the power output control on the power supply to 19mA max. With the Analog circuitry that I installed on yesterday, actually it worked as it used different output signal patten to control the fire. The "TH" singal is not a constant 5V but variable, as opposite to a PWM power supply to which the TL always 5V (or closed).

See attaced images (a little bit over burned as I keep changing the power)

Looking good marco

i try burn little balsa

Cap232

[Tech_Marco]

Try to burn it on a pieces of paper and if can send me the picture file and let me try it. Then I can tell if yours if properly setup. Did you use do 'dittching' on the image, if so what is the dot size?

Today I'm going to use a scope to look at the analog signal from the card. After that, I'm pretty much done on testing on the DSP card. And, I'll send it back to my customer Denis. He will use it on a D40K he bought from China.

Marco

[TeacDance]

Try to burn it on a pieces of paper and if can send me the picture file and let me try it. Then I can tell if yours if properly setup. Did you use do 'dittching' on the image, if so what is the dot size?

Today I'm going to use a scope to look at the analog signal from the card. After that, I'm pretty much done on testing on the DSP card. And, I'll send it back to my customer Denis. He will use it on a D40K he bought from China.

Marco

I'm in work now but i try when i get out what is usually minium power what you use 0-10% that picture i use 6%. if i want to lighter picture i should use lower minium power?

[Tech_Marco]

It depends on your power supply. Some PS have lower threshold while ohter having higher. You need to set max power to test what is the mini power that you power supply will respond.

[TeacDance]

It depends on your power supply. Some PS have lower threshold while ohter having higher. You need to set max power to test what is the mini power that you power supply will respond.

Try example this picture.. i don't get white stripe show to good and cap text too..

do i have to adjust picture levels lighter?

[TeacDance]

It depends on your power supply. Some PS have lower threshold while ohter having higher. You need to set max power to test what is the mini power that you power supply will respond.

Try example this picture.. i don't get white stripe show to good and cap text too..

do i have to adjust picture levels lighter?

can you send marco parameters pictures and setup pictures

[Tech_Marco]

Can't do it in next 7 days as the DSP just returned to the cutomer. A new shipment for the DSP controller will arrive on next Friday possible

[TeacDance]

Can't do it in next 7 days as the DSP just returned to the cutomer. A new shipment for the DSP controller will arrive on next Friday possible

Ok i hope dennis get machine workin at he can comeback testing group

[TeacDance]

Can't do it in next 7 days as the DSP just returned to the cutomer. A new shipment for the DSP controller will arrive on next Friday possible

Ok i hope dennis get machine workin at he can comeback testing group

Any idea what is this wrong i don't get it?

outer 18,50mm is correct size but that middle cutting is too small allways why this happend?

[Tech_Marco]

Most likely that it's the issue of your machine. I should have my card arrive on coming Friday. You can send me the file and let me try it

Here is the video I took for the D40K

http://www.youtube.com/watch?v=g1TFYClJY00

[TeacDance]

Little update my machine

First lathe cone and mark center point for drilling

then drill center hole about 5-6mm

drill bigger hole 10mm about middle of cone

it should be like this

next drill hole to side of the cone 3mm and bend pipe to it

voila it's ready

[Tech_Marco]

Ha..ha... you're faster than me. I'll get a new laser head mount with the air-assistance soon. Possible in 2 weeks. It will be in black color. Picture below show raw aluminium.

[TeacDance]

Ha..ha... you're faster than me. I'll get a new laser head mount with the air-assistance soon. Possible in 2 weeks. It will be in black color. Picture below show raw aluminium.

you version looking professional like allways marco

what is you laser head height at you get best result.