Laser Cut 5 3 Dongle Crack 29
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I saw a comment that people want to hide their Logitech Unifying dongle (and other random small easy to lose dongles. Tried a design with a standard USB-A 2.0 socket recessed inside. Not enough room for another connector to expand outward sadly.
The other route is just buy the unifying receivers and indeed crack them open and solder them to the board. Might be cheap enough, the receivers are about 15-20 euro per unit. That will also probably give you the option to make a USB hub inside and add an external USB-A or C port, or an SD slot or whatever.
Managed to fit the cracked open dongle with the same type of connector I posted a picture of earlier. Easiest way was to bend out the interlocking metal seam using a stiff razor to loosen the plastic endpiece. The plastic piece can then be pulled off relatively easily.
Used the same mini USB-A to C adapters linked above, and modified the 3D printable expansion card design to hold the adapter and stripped down USB dongle. I can provide the step file if anyone is interested
Keep the laser safety glasses on at all times, close the door, and make sure no one else walks into the room. My tube was so far out of alignment that the beam exited the case through the open door and made a small scorch mark on the wall behind my workbench. It would not have been good if someone else was standing there.
In simple terms, CorelLaser gives you a toolbar and can cut or engrave any image loaded into Corel Draw. Cutting and engraving are very different processes though. Cutting is a vector operation. The laser will trace the path of every line in the image. Engraving is a raster affair. The laser will draw the image line by line, left to right and top to bottom. You can also perform both processes on the same design by creating a cut layer and an engraving layer in the software.
What to cut As with any laser cutter, thought has to be given to the materials being cut. In general, wood is safe to cut, as is paper, cloth, melamine, pressboard, matte board, cork, some rubbers, natural leather, and Corian. Engraving can be performed on materials such as glass, stone, anodized aluminum, steel (with a laser engraving coating) and other materials.
also check that the bed is square mine is out by over 1/4 inch and to fix I must take the entire thing apart. Also the mirrors are junk,top and bottom left side is fine now the far top and bottom is crap. And really take a hard look at the label on your tube mine says peak power is 37.5 watts and nomial power is 35.0 watts in other words I got a max 5 watt laser also the table or work holder is sold as 8.5X11.0 inches but it only holds max 3inch by 5 inch material. They would be better off selling a box of parts as a kit.
I bought my K40 September 2016. I have since upgraded the controller to a Cohesion3d mini running smoothieware and LightBurn software. Better exhaust fan, water pump, flow sensor and air blower. With upgrades, still under $650. Cuts 3mm Baltic birch single pass like butter and great looking greyscale images. I even have cut 8mm mdf with two passes. I even have a rotary. Limited in cutting area but so much better than waiting around at the local makerspace for your turn on their laser.
The DIY3DTECH.com youtube channel has all kinds of mod videos for this laser, one of which is increasing the bed size significantly. Also, this laser is known for having bad grounding issues which can lead to injury, so they have videos on how to check all the wiring and upgrades you can perform to make it much safer.
CO2 absorbs the radiation of a CO2 laser. If you want to flood it with an inert gas, you could use nitrogen. But some laser cutting even uses oxygen (usually for fast cutting of thick metal, e.g. steel. That works somehow likje a cutting torch. So your results could be different with an inert gas vs. air.
Modifications:Connect the lower drain of chilled water container to the input of water pump.Run the output of pump to the back of chilled water tap.Then run a hose from the back of room temp tap.So it flows into top of chilled water tank.This only works if chiller tank is mounted higher than the laser tube.If lower you need to seal the top of tank to prevent leaks & maintain pressure.I recommend always mounting any cooling device so the water tank is higher than the tube. This insures any air bubbles in the Laser tube will rise to the tank.Air bubbles near the hot end of the tube can kill a tube in minutes.Plus having higher means only the water input to the laser tube is under pump presure.The return is open to drain back into tank & allows for easy topping up with distilled water. As over time the water will evaporate from the heating process.
btw, as i remember, they also said that it is not the laser itself what does the cutting, it just melts the material in a very thin point and it is the compressed gas (CO2) that blows out the molten metal from the cut. but it was a pretty old industrial laser
No, these use Q-switch UV lasers, they ablate the copper off the surface and leave the FR-4 behind. We build these machines where I work. They also drill holes for microvias this way and can cut through the top copper, fr4, and then leave the second copper layer intact in the middle of the board to connect to.
Once worked in a machine shop that had an industrial laser with a large cutting bed installed. Across the room stood a turret punch press. Nothing unusual about either piece of equipment, except that the turret punch press had a panel that looked like it had gotten burned (scorched paint and distorted metal). Turns out a laser tech was doing maintenance on the laser and had the beam go wild. An operator was at the punch press at the time. Lots of yelling to not move, and people hitting e-stops to shut down the laser. That laser tech was told to leave. They got another tech in to finish what the first tech had started.
As to laser dust, one Illinois company had a friendly visit from the new regional OSHA chief. He got there and they invited him out onto the factory floor. You could not see from one end of the factory to the other end.due to the airborne dust. The OSHA guy gave them six months to get air scrubbers in place or he was going to shut them down. How bad was it A day or so on the floor would have you blowing out brown colored snot. Not good. The workers were glad OSHA stepped in.
First, check the ammeter status of the laser machine by pressing the control panel test button. The ammeter will give you a reading that will tell you whether the machine is working properly. If the reading is negative, then the machine is not working properly and needs to be fixed.
Then, make sure that the laser power supply or cord is plugged into an outlet. Check if the engraver is turned on at the power switch. Sometimes the switch is located on the back of the machine, so be sure to check there.
For minor cracks, you can try using a UV-curable epoxy or adhesive tape. If the crack is more severe, you may need to replace the entire lens or mirror. This is not as difficult as it sounds. You can usually find replacement parts at your local hardware store or online store of your laser machines manufacturer.
First, there is the issue of banding. This is when the laser leaves behind a series of lines that spoil the engraving. The cause is usually an incorrect focus or dirty optics. To fix this, simply clean the lenses and adjust the focus until the lines disappear.
One of the most common problems with laser engraving machines is an unclear image. This can be caused by a number of factors. These factors include laser tube contamination, improper focus, incorrect file settings, or dirty lenses. For unclear images, clean the laser tube, especially if it contains contamination. Wipe dust on the laser lens, if still have problem after clean lens, you may need replace the laser head,
One of the most common problems is that the engraving is not deep enough. This may be because the power of the laser beam is too low or because the focus is not set correctly. If you are having trouble getting a deep engraving, try adjusting the power or focus until you get the desired results.
Another common problem is that the engraving is not clean. This may be because the laser beam is not set to the correct width or because the material you are engraving is not smooth enough. If you are having trouble getting a clean engraving, try adjusting the width of the beam or choosing a smoother material.
Next, take some time to experiment with different settings on your laser machine. The speed and power of the laser beam can be adjusted to create different effects. For example, a slower setting will produce a deeper etch, while a higher speed setting will create a more superficial engraved image. By playing around with the settings, you can find the perfect balance for your project.
Work Completed: New oil sump gasket. New 17\" 150-spoke wire wheels with adaptors. Fixed leaking vacuum reservoir by spot-welding holes and re-welding broken bracket to solve the central locking system problem. Bumpers and exterior brightwork rechromed. Interior wood inlays replaced with laser cut aluminium panels with wood effect wet transfer. Body resprayed from white to Ford Roman Bronze. Creme leather seats reupholstered.
Work Completed: Fuel injectors replaced, timing chain and plastic chain guides replaced, HVAC air vent vacuum actuators replaced, heater box repaired, cracked dashboard reupholstered in German vinyl, leather seats recovered, center console veneer panels replaced, front suspension refurbished with new shocks, lowered springs and new anti-roll bar end links, front suspension subframe mounting bushings replaced, aftermarket wheel arch chrome trim removed, U.S. spec bumpers and headlights replaced with Euro spec ones, period correct Lorinser LO wheels fitted.
Work Completed: Dents removed using various methods of dent removal, hole in bed patched, air shocks installed, oil seals