November 19, 2016 at 12:47 pm #21204
Awesome looks great. Just need to enclose the back. Very clean finish.November 19, 2016 at 10:40 pm #21214
Interestingly I’ve loaded a Batman image that’s mostly white into PEP5 Demo and Image2Gcode to see how they handle it.
I made it 12×12 (304mmx304mm) at 0.1mm resolution and the PEP5 files is 1.05MB…the I2G file is 187MB!!! Am I doing it wrong? I’m pretty sure I have the same settings in each, or is this an indication of skipping white space? Is the difference really this significant???
I could shrink the whitespace considerably but made the image 12×12 so it’d fill the whole space of one of those mirror tiles and I could place my home at 0,0.
I’ve attached the actual file if anyone want’s to try it and see.
Attachments:November 22, 2016 at 11:51 am #21376
I thought I commented on this already… Guess not. But anyways that sounds about right. I2G is going to write code for every pixel and PEP5 is going to ignore a very large amount of the picture. I think it is also more efficient in how it writes the code. I have experienced this kinda thing as well.January 8, 2017 at 9:45 pm #24527
Here is my latest creation on a mirror. This was my first attempt. Turned out pretty good. I think I might need to turn the power down a little bit to get more color depth.
Attachments:January 8, 2017 at 9:49 pm #24529
Here is one other that I made for my daughter.
Attachments:January 10, 2017 at 6:29 am #24603
Company logo mirror
Attachments:January 11, 2017 at 9:17 am #24691
Here are a couple more attempts at images. This tiger was attempt #2 and the wolf attempt #3. The wolf is only 2″ square. And they say the 6 watt nubm44 cannot do high detail.
Attachments:January 16, 2017 at 1:54 pm #25121
Here are a couple more of the back lighting (inverted) engraves. Quality is slowly getting better as I dial in the laser settings.
Attachments:January 16, 2017 at 7:04 pm #25141
Jason you are the man. Thanks for the tutorial. My wife wants to kill me as the basement now smells like burning nut hair. This is just a single pass. When you do a double pass to fully remove the backing are you wiping it down with rubbing alcohol in between burns?
Attachments:January 16, 2017 at 8:21 pm #25145
Nice work. I have my laser segregated from the rest of the air in the house with a dedicated exhaust fan… it smells bad lol.January 18, 2017 at 8:51 am #25224
I ask again for help.
I can not do anything ..
I attach the screen of sw Image2Gcode, I can not understand why gcode not change the laser intensity …
I did 1000 tests but nothing …
The minimum value 110 because I set lower than 110 my 5.5 watt laser marks the pannello..non not even know why.
I also tried to make the lines with 100 90 80% etc.
but no result.
I attach the image
Attachments:January 18, 2017 at 9:07 am #25230
Things I notice…
Your resolution is really high.. 0.5mm i use 0.1 to 0.15
Your minimum power really needs to be 0
I would dump the G28 at the beginning and set your start prior to running your job.
Your speed seems pretty quick. Slow it to 1800 to start I would say.
What is your last pic (raster.png) supposed to be?January 18, 2017 at 11:30 am #25246
Thanks for your reply @jason I realized that “RASTER” picture because I wanted to make 10 simple lines in order to understand the laser intensity ..
The minimum so I have to keep it at 0?
then it means that there is a problem if from 0 to 100 does not affect?
(Sorry for my bad english)January 18, 2017 at 11:32 am #25247
if you had your minimum at 100… The minimum intensity it would fire at is about ~35%. Even if there it is not supposed to be firing. Not sure if that makes sense. 0 ensure the laser turns off completely for areas that are not supposed to be engraved.January 18, 2017 at 11:37 am #25248
@jason I agree that it is unusual ..
I wonder where I maybe wrong ..
Following the pdf here on the forum I changed the pin of the fan and connected the cable ttl …
the laser power is directly taken from Ramps.1.4 and S10 M106 and M107 controls respond correctly ..
In lower values below 100 … the laser is blue and does nulla..ben visible but not engrave or cut – let’s say always “pointing mode / positioning”
I do not know if I am told ..
Hopefully I can make a video ..
May I ask a favor?
Riuciresti gcode to pass me a drawing of a small simple?
Maybe I have a problem in creating gcode ..January 18, 2017 at 12:08 pm #25259
Attached is a quick test that does a 10cm x 10cm logo. It is full engrave no shading. So that means laser will either be 0 (off) or full power (255). Speed is set to 1800 mm/min
Attachments:January 18, 2017 at 10:21 pm #25366
thank you so much.
That’s when I tried to generate the gcode with Image2gcode was not.
In this we see the change of laser intensity…why?
I knew everything was 255? or am I wrong?
[....] G1 F1800 (Begin Left Angle ) M03 M107 G1 X10.3 Y17.7 M106 S0.0 G1 X10.4 Y17.6 M106 S8.0 G1 X10.5 Y17.5 M106 S0.0 G1 X11.9 Y16.1 M106 S0.0 G1 X12 Y16 M106 S1.0 G1 X12.1 Y15.9 M106 S0.0 G1 X12.7 Y15.3 M106 S0.0 G1 X12.8 Y15.2 M106 S13.0 [....]
Today I try the file you sent me 😀January 19, 2017 at 6:02 am #25385
S0.0 is blank space. That is expected.January 19, 2017 at 11:48 pm #25500
I’m sorry but I did not understand the last post. 😛January 24, 2017 at 7:45 am #25871
does not work. when I start the code RepetierHost gives me a lot of mistakes ..
`16:43:53.898 : Error:checksum mismatch, Last Line: 109
16:43:53.898 : Resend:110
16:43:53.898 : Error:Unknown command: “2”
16:43:53.898 : Error:Line Number is not Last Line Number+1, Last Line: 109
16:43:53.898 : Resend:110
16:43:53.914 : Error:No Line Number with checksum, Last Line: 109
16:43:53.914 : Error:Line Number is not Last Line Number+1, Last Line: 109
16:43:53.914 : Resend:110January 24, 2017 at 8:21 am #25872
That is strange. Are you sending with Repetier Server? Are you running Marlin firmware?January 24, 2017 at 9:32 am #25878
I think you’re using older version of image2gcode. The decimal power values are removed long ago. I’m not sure how well repetier tolerates the decimal values since the M106 command expects an integer value between 0 and 255. Try again without the decimal power values. Marlin will ignore them when running from SD card but I’m not familiar with repetier host.January 24, 2017 at 9:35 am #25879
I have no issues running that with Repetier Host. I used to get errors like he posted running from Repetier Server.January 24, 2017 at 11:16 am #25887
Hi Jason, thanks for your quick reply..
Use MarlinKimbra, a modified Italian version of the standard Marlin. (which also has an automatic online configurator)
since I had little time available for testing I just tried to follow the video on youtube where uses Inkscape + JProthonics plugin and finally it worked.
Obviously you are keeping 0min 255max like you advised me
On the non-operation of the file you’ve attached to me … I do not know why does not work.
After various tests on ImagetoGcode I discovered that any image you load uses more and M106 S5 …
I wonder so if anyone has a way to attach a version that works … because what I feel I can not explain the reason of the malfunction
Thanks a lot!January 24, 2017 at 11:41 am #25889
I would suspect maybe that version is not liking the decimals in the power levels maybe.January 30, 2017 at 6:58 am #26303
Well we are morphing our mirror process slightly. It taking 12-20 hours to do a mirror is getting a little tedious and now that I have the vinyl cutter working sorta… I will be switching to sandblasting mirrors. That will take my time spent per mirror to about 15 minutes.
This was my first attempt on just regular glass.
Attachments:February 19, 2017 at 9:26 am #27905
I got a realy strange thing.
When i create something with ESTLCAM or with Inkscape it works fine but when I want to convert a picture and engrave it i got everything twice, as it seems in a shift to right … (See image)
I tried an other laptop, also changed the driver board. Same results.
Someone had this before? And how to solve this?
Attachments:February 19, 2017 at 10:29 am #27910
make sure you don’t have a hidden layer in inkscape.February 20, 2017 at 11:17 am #28032
I’m not using inkscape.I was talking about the img2gcode converter.
Opened a image I created with paint and saved as *.bmp.
Also tried it with an *.jpg (downloaded from internet)
Made the code with the img2gcode program
(2 versions, normal one and the mpcnc version)
Can you make an example code for testing? Just something, don’t care what.
Make the begin laser power from 27 max 60 (i’m using the mpcnc with a 100W CO2 laser, and still adjusting it)
Laser on with M42 P4 S and off with M42 M4 S0
Will burn it and show you the results.
Thanks in advance.February 21, 2017 at 11:18 am #28107
Hi sorry been crazy busy lately. That is an interesting result. Can you post the source image and a picture of how you are using a 100w tube with mpcnc.
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