What size conduit was this tool mount created for? Would you think it would fit the C-23.5 mm (3/4") version? You did not state the conduit size of your machine. I am trying to fix the A40640 laser to a Burly.
Hi Robert, The specific mount shown in this video and up on my grabcad is for 25.4mm OD tubing. I actually used thick-walled DOM tubing because the marginal cost was worth it for the extra quality, rigidity, and ability to tap the tube walls If you want to mount the diode to a burly, you could download the f3d file, and try adjusting the design sketches to match the dimensions of your machine. I can recommend a piece of software called 3d-tool (www.3d-tool.com/downloads/) (setup_3dtool_freeviewer.exe) to inspect the STL files of your burly, and transfer the exact measurements into the f3d design sketches
@@markosfraser3030 - Thank you for the information. I will look into the 3d-tool app. Another question. I am going to hook up the NEJE A40640 to the burly with a RAMPS 1.4. What is the output voltage on the RAMBo board for the PWM output and what is Neje required input PWM voltage? What GCode commands are you using to drive the laser (M3, M4 or M106)? I am still trying to determine the proper pin for the RAMPS 1.4 PWM. I could drive the laser with D6 (FAN, 12VDC output) with the M106 but would like to with M3, M4, and M5 g commands. Last what version of MPCNC version are you using for the Rambo? Thank you!
Hi Robert, I'm using pin 45 for laser control. It's 5V logic, as discussed in this forum post (forum.v1e.com/t/rambo-1-4-5v-logic/31128). The A40640 should ship with an adapter board, allowing you to control the laser module with a control signal anywhere between ~2.4 - 12V iirc. I configured lightburn to generate GCode with inline laser commands. Refer to this forum post (forum.lightburnsoftware.com/t/laser-power-inline/15493/24?page=2) and marlin/grbl documentation (marlinfw.org/docs/gcode/M003.html). You'll definitely want to use inline commands, because laser control through fan output is very slow and will not be suitable for engraving raster images. I would strongly encourage you to purchase a higher-end control board for you CNC. The RAMPS board is great, but too slow for high speed laser engraving. It looks like Ryan is selling the MPCNC with SKR boards now. It would be hard to go wrong with an SKR controller, or any other generic STM32-based control board. My version of the MPCNC shown in this video is a primo model. Hope this helps, best of luck.
Hello Mark, I am looking at the NEJE A40640 or the E40 laser module for mostly cutting. I was also wondering about the performance of the A40640 module since you are using one? How does it fair with cutting? I am looking at mostly balsa and light ply for cutting.
Hi Robert, The A40640 would be perfectly suitable for cutting balsa and light ply. There are lots of other youtube videos demonstrating it's performance in those materials. Air assist would be beneficial for that application; you should try to set up an air compressor and regulator. It will also generate huge amounts of smoke and present a serious fire hazard, so make sure you have good ventilation and a safe (non-flammable) area for laser cutting. Creality and other companies are also now producing very powerful benchtop laser cutters, you might consider just purchasing a dedicated laser cutter machine off the shelf, because the MPCNC is a heavy machine, and not the best for laser cutting (it can't accelerate quickly, a lighter toolhead is better).
Any chance you could put a STL file up for the mount adapter?
What size conduit was this tool mount created for? Would you think it would fit the C-23.5 mm (3/4") version? You did not state the conduit size of your machine. I am trying to fix the A40640 laser to a Burly.
Hi Robert,
The specific mount shown in this video and up on my grabcad is for 25.4mm OD tubing. I actually used thick-walled DOM tubing because the marginal cost was worth it for the extra quality, rigidity, and ability to tap the tube walls
If you want to mount the diode to a burly, you could download the f3d file, and try adjusting the design sketches to match the dimensions of your machine. I can recommend a piece of software called 3d-tool (www.3d-tool.com/downloads/) (setup_3dtool_freeviewer.exe) to inspect the STL files of your burly, and transfer the exact measurements into the f3d design sketches
@@markosfraser3030 - Thank you for the information. I will look into the 3d-tool app. Another question. I am going to hook up the NEJE A40640 to the burly with a RAMPS 1.4. What is the output voltage on the RAMBo board for the PWM output and what is Neje required input PWM voltage? What GCode commands are you using to drive the laser (M3, M4 or M106)? I am still trying to determine the proper pin for the RAMPS 1.4 PWM. I could drive the laser with D6 (FAN, 12VDC output) with the M106 but would like to with M3, M4, and M5 g commands. Last what version of MPCNC version are you using for the Rambo? Thank you!
Hi Robert,
I'm using pin 45 for laser control. It's 5V logic, as discussed in this forum post (forum.v1e.com/t/rambo-1-4-5v-logic/31128).
The A40640 should ship with an adapter board, allowing you to control the laser module with a control signal anywhere between ~2.4 - 12V iirc.
I configured lightburn to generate GCode with inline laser commands. Refer to this forum post (forum.lightburnsoftware.com/t/laser-power-inline/15493/24?page=2) and marlin/grbl documentation (marlinfw.org/docs/gcode/M003.html).
You'll definitely want to use inline commands, because laser control through fan output is very slow and will not be suitable for engraving raster images.
I would strongly encourage you to purchase a higher-end control board for you CNC. The RAMPS board is great, but too slow for high speed laser engraving.
It looks like Ryan is selling the MPCNC with SKR boards now. It would be hard to go wrong with an SKR controller, or any other generic STM32-based control board.
My version of the MPCNC shown in this video is a primo model.
Hope this helps, best of luck.
Hello Mark,
I am looking at the NEJE A40640 or the E40 laser module for mostly cutting. I was also wondering about the performance of the A40640 module since you are using one? How does it fair with cutting? I am looking at mostly balsa and light ply for cutting.
Hi Robert,
The A40640 would be perfectly suitable for cutting balsa and light ply. There are lots of other youtube videos demonstrating it's performance in those materials.
Air assist would be beneficial for that application; you should try to set up an air compressor and regulator.
It will also generate huge amounts of smoke and present a serious fire hazard, so make sure you have good ventilation and a safe (non-flammable) area for laser cutting.
Creality and other companies are also now producing very powerful benchtop laser cutters, you might consider just purchasing a dedicated laser cutter machine off the shelf, because the MPCNC is a heavy machine, and not the best for laser cutting (it can't accelerate quickly, a lighter toolhead is better).
What power supply are you using for the laser?
Its a 12v, 72w switching power supply. It's a sealed brick unit so I don't have to worry about dust
Great ! What firmware are you using for your MPCNC ?
I'm using the stock firmware that Ryan has flashed to the Rambo board. It is a slightly modified version of Marlin V2.0.7.2