Fired up my K40 today Roger. The mod you suggest removing the dud fan air duct worked a treat. I did a raster engrave @ around 6mA as the first job. It was 130mm square with a lot of detail and I was amazed how well it came out! Straight out of the box it actually works well although I do have the air assist and lens upgrade on the way. The only thing I could pick fault with on the engrave was a very slight difference in the engrave depth from left to right which I'm guessing is due to the bed not being perfectly parallel to the gantry. Something I will fiddle with later. Love the K40 so far!
dear Roger, is their a good reason to buy a K40 for making custom packaging inlay's for in boxes. to protect expensive components. what i hope to see ones if it is possible to cut open cell foam, closed cell foam, EVA foam. and even styrofoam or the even harder PIR plates (STYRODUR/TYVEK). to a certain thickness, so i can glue them togeather afterwards with a blank one to create a bottom. and i forgot the name of that type of material with those hollow canals what they use to make for example "house for sale" screen-printed sign's (sometimes they ad suction caps to mount them temporaraly on windows). looks like rib-cardboard but then made of plastic. so maybe a demo of cutting dif. materials. sometime. ;) thanks , Jan
Great vid Roger. Thanks! I'm curious why you kept the power at 8mw. I would have thought on a grey scale test, you would have wanted it to go from white to black. If the controller is regulating the laser power, will you still get the white, but a stronger black by setting the power at 12 or 16mw? It's still going to be awhile before I get mine setup or I would play with it myself. :)
8 mA is about 18 to 20 watts out put on the K40 which I use on my 100w laser for engraving, So it is just getting the right speed to get the right tone of color.
@@rogerwebb9600 Ah...cutting through would be a bit counter productive. lol I guess black is not a good goal anyway.....the charcoal would be loose and smear once touched. Thanks!!
I have a 2.5 watt diode laser on a 3018 pro CNC machine and in my experience pictures come out much blacker than with the K40. I'm not sure why but it may be due to the fact that the lower power requires a lower speed so the laser spends more time in a given spot. Video's I've seen of 15 and 20 watt lasers don't burn as dark either but run faster. The engraving speed difference is significant a 4" x 6" picture on the K40 took a few minutes; the same picture on my 3018 pro machine took 12 hours. I use the K40 when I want it done quickly and the 3018 pro when I want IMO a better looking picture.
How is it doing raster engraving? I thought the K40 couldn't modulate power unless you upgraded the board or you manually turned the knob. Is it running the same speed and power throughout the tests? I'm confused.
Y yo creyendo que este software no variaba el pwm del láser directamente, estaba pensando en actualizar mi hardware, ya que tengo una máquina parecida pero 40x40cm con CorelLaser, lo cambiaré a wishperer. Muchas gracias tremendo video, saludos
2yr old comment I know but i just tried burning the Virgin Mary on some toast about two weeks ago. Figured it would be a big seller in South America lol
I did a test engrave on a piece of western red cedar with the grain from font to back of the laser. approx 6mA.
Really cool result with the grain!
Fired up my K40 today Roger. The mod you suggest removing the dud fan air duct worked a treat. I did a raster engrave @ around 6mA as the first job. It was 130mm square with a lot of detail and I was amazed how well it came out!
Straight out of the box it actually works well although I do have the air assist and lens upgrade on the way. The only thing I could pick fault with on the engrave was a very slight difference in the engrave depth from left to right which I'm guessing is due to the bed not being perfectly parallel to the gantry. Something I will fiddle with later.
Love the K40 so far!
Do you know why my machine doesnt cut enought? I mean, when i select the cut option, it doent work that just records
dear Roger,
is their a good reason to buy a K40 for making custom packaging inlay's for in boxes.
to protect expensive components.
what i hope to see ones if it is possible to cut open cell foam, closed cell foam, EVA foam. and even styrofoam or the even harder PIR plates (STYRODUR/TYVEK). to a certain thickness,
so i can glue them togeather afterwards with a blank one to create a bottom.
and i forgot the name of that type of material with those hollow canals what they use to make for example "house for sale" screen-printed sign's (sometimes they ad suction caps to mount them temporaraly on windows). looks like rib-cardboard but then made of plastic.
so maybe a demo of cutting dif. materials. sometime. ;)
thanks , Jan
Hi Roger great clip can you run the most current version of windows with this unit?
Yes
Great vid Roger. Thanks!
I'm curious why you kept the power at 8mw. I would have thought on a grey scale test, you would have wanted it to go from white to black. If the controller is regulating the laser power, will you still get the white, but a stronger black by setting the power at 12 or 16mw? It's still going to be awhile before I get mine setup or I would play with it myself. :)
Hi Mike, 12 to 16 mA would have cut all the way through to the back of the wood lol ;-))
8 mA is about 18 to 20 watts out put on the K40 which I use on my 100w laser for engraving, So it is just getting the right speed to get the right tone of color.
@@rogerwebb9600 Ah...cutting through would be a bit counter productive. lol I guess black is not a good goal anyway.....the charcoal would be loose and smear once touched. Thanks!!
I have a 2.5 watt diode laser on a 3018 pro CNC machine and in my experience pictures come out much blacker than with the K40. I'm not sure why but it may be due to the fact that the lower power requires a lower speed so the laser spends more time in a given spot.
Video's I've seen of 15 and 20 watt lasers don't burn as dark either but run faster. The engraving speed difference is significant a 4" x 6" picture on the K40 took a few minutes; the same picture on my 3018 pro machine took 12 hours. I use the K40 when I want it done quickly and the 3018 pro when I want IMO a better looking picture.
@@electronron1 That's pretty interesting. I was hoping to find a video on your channel... :( lol What a huge difference in time. Thanks :)
How is it doing raster engraving? I thought the K40 couldn't modulate power unless you upgraded the board or you manually turned the knob. Is it running the same speed and power throughout the tests? I'm confused.
Y yo creyendo que este software no variaba el pwm del láser directamente, estaba pensando en actualizar mi hardware, ya que tengo una máquina parecida pero 40x40cm con CorelLaser, lo cambiaré a wishperer. Muchas gracias tremendo video, saludos
♥️
Am i the only one who wonders if it can burn an image onto bread / toast ??
Or can we just make toast?
2yr old comment I know but i just tried burning the Virgin Mary on some toast about two weeks ago. Figured it would be a big seller in South America lol