Tried another cut set the speed at 300 and the power at 60% on a 2mm acrylic
When you did the mirror alignment did you adjust mirror 3 to make sure itās coming out of the nozzle in the center?
Hi Jeff. The answer is no I did not adjust mirror 3 to make sure its coming out of the middle dead Centre, I have just ordered some new gold mirrors as I noticed the old ones had a slight burn, so maybe this is the problem?
Part of the requirement is clean and aligned optics.
Sometimes you can just clean them off.
Hi Jack.
ordered new mirrors should be here shortly, did some more tests this morning, Brisbane time. here are the pics at 15% power on mirror 3 the white card is the last shot and looks better but not there yet.
Yeaā¦ terrible way to teach itā¦ must work for someone.
Most of us do a ramp test. Prop the material up at one end so the focus changes as it makes a line. Heās effectively doing something similar but digital, moving the material across the range by doing a line at each 5mm change in Z.
Donāt say this around the airportā¦
I donāt know what Iām looking at in the photosā¦ there is no indication of up center of mirror or?
I think it would be nice if @JohnJohn could split this, at the proper place, and end this thread. Itās very off topic and is so long itās painful to look back at whatās been covered hereā¦
Bon Giorno Jack,
sorry but i never thought about that you are right, (Airport) haha
Do you have any comments about this last pic, I will try the Ramp Test today and come back to you. Thank youā¦
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I donāt know what Iām looking atā¦ Iām sure you understand, but Iām clueless
If thatās where itās in focus, then the diameter of the socket is correct for that lens.
9mm is the thickness of the socket, i will try that just waiting on the new lens, should come today
Good idea. Done. Have split when the subject started changing to mirror alignment.
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Thanks
Hello Jack/ Nicholas
Still playing with trying to get a cut through on 3 mm acrylic.
ran a new ramp test again to see if i missed anything, the result came out exactly the same see pics set speed at 40 and power at 50 only a fine line.
Tried a cut this morning from 5 speed to 25 speed and power at 40% through to 85 % line improved but still not cut through
Have done alignment, but must be missing something with my allignment how it should be. first mirror hole centre, see pic second mirror close but not perfect, (no pics) hole down through centre of laser looks to be centre, will replace mirrors with new ones and do alignment test again, Help me Guys what am I missing hereā¦ Ramp test Pic
Iām still thinking your tube has an issueā¦
There should be a power distribution from the edge to dark in the center. This isnāt looking like that.
The center is not touchedā¦
Can you do a burn at m1, very light so I can see the power distribution of your tubeā¦?
Specifically, what is the result with 3mm acrylic at feed speed 18mm/s and power 85%? And if you run it at 18mm/s at 100% power is it any better?
Have you cleaned the focus lens yet? This demonstration is quite good:
Cleaning your Thunder Laser Focus Lens and Mirrors -
Computer Creationz
just received new lens will put in place and come back to you tomorrow, havent tried 100% yet will try your thoughts and let you know