Remove that stupid narrow smoke outlet. Cutting is part of the problem to get more workspace, but it will not give you better venting. Remove all 4 screws and trash it. Okay, you need repeat process of removing gantry, do it once and get rid of that choke forever. You will be surprised how smoke getting out fast if you cut wood or plastic.
I want to test all three states. Original, cut down and removed. I will see if there is any advantage to having it and if not then I will remove it. This is just a preliminary stage in my upgrade of the k40. Thanks for the comment
@@TheOffGridFamily Yes, you will see clearly the difference when removed. Especially if you want to cut anything. Just for cutting you need really good air assist.
@@MilanKarakas Yeah I think you are probably right, sadly mine didnt come with a decent fan, its just a big computer fan. I will be upgrading the whole thing. One piece at a time
@@TheOffGridFamily Heh, yes. I got just engraver, where engraving job is done actually with small power. In this case, smoke exits to the exhaust. But in the case of cutting, it become rocket engine erupting flame up to the lens. I just got second hand nozzle, but with wrong 'gender' - male thread and on K40 is also male thread. So, I need to 3D print adapter. Right now, I have another solution, which works somewhat okay - 3D printed holder for 6.3 mm (1/4 ") copper pipe with 3D printed mini nozzle at angle of about 45 degrees. The problem is that after fire is suppressed - small amount of hot gasses still remains and melt acrylic or stain wood with tar. And it shoots to the side at about 45 degrees as well. The best way is to use proper nozzle and blow air from above. Just bought 50 L compressor (up to 8 Bar). That thing is LOUD (!). Aquarium pumps from China (big one, claimed 140 l/min air flow) is okay too. But the price is in range with this whole air compressor, and I heard people measuring air flow, it is not actually 140l/min of air.. Will make a video about all of that, just need time to make it work properly.
Yep, seen several of these and it just needs removing, it does nothing but restrict an already poor air flow. Inlet opposite, the outlet, probably two on the front wall, for the best flow. My gantry was also out of alignment, it was caused by the y axis rail being out of alignment and the inept assembler then putting the belts out of alignment. I loosened the y axis rail and there was enough play in the screw holes to set it straight. Belts were then aligned just by loosening the drive coupler. All straight now with no bending required. If your misalignment is caused by the y axis rail then bending the x axis mount wont fix alignment, it will just make the x axis bar look straigtht but the y axis will still be running out of true. Need to measure at both ends of travel to be sure.
2 10mm box wrenches work really good for thos gantry mount bolts vs huge cresent wrenches!!
I'm working on a specific tool set for the K40, like I have for the 3D printer
i removed my vent duct altogether and it works as well as it did.
I've removed mine too now and I will be adding ports to the front to allow more air flow
New subscriber the magical k40 brought me here 😁
Wonderful mate. Welcome to the Family :)
Remove that stupid narrow smoke outlet. Cutting is part of the problem to get more workspace, but it will not give you better venting. Remove all 4 screws and trash it. Okay, you need repeat process of removing gantry, do it once and get rid of that choke forever. You will be surprised how smoke getting out fast if you cut wood or plastic.
I want to test all three states. Original, cut down and removed. I will see if there is any advantage to having it and if not then I will remove it. This is just a preliminary stage in my upgrade of the k40. Thanks for the comment
@@TheOffGridFamily Yes, you will see clearly the difference when removed. Especially if you want to cut anything. Just for cutting you need really good air assist.
@@MilanKarakas Yeah I think you are probably right, sadly mine didnt come with a decent fan, its just a big computer fan. I will be upgrading the whole thing. One piece at a time
@@TheOffGridFamily Heh, yes. I got just engraver, where engraving job is done actually with small power. In this case, smoke exits to the exhaust. But in the case of cutting, it become rocket engine erupting flame up to the lens. I just got second hand nozzle, but with wrong 'gender' - male thread and on K40 is also male thread. So, I need to 3D print adapter. Right now, I have another solution, which works somewhat okay - 3D printed holder for 6.3 mm (1/4 ") copper pipe with 3D printed mini nozzle at angle of about 45 degrees. The problem is that after fire is suppressed - small amount of hot gasses still remains and melt acrylic or stain wood with tar. And it shoots to the side at about 45 degrees as well. The best way is to use proper nozzle and blow air from above. Just bought 50 L compressor (up to 8 Bar). That thing is LOUD (!). Aquarium pumps from China (big one, claimed 140 l/min air flow) is okay too. But the price is in range with this whole air compressor, and I heard people measuring air flow, it is not actually 140l/min of air.. Will make a video about all of that, just need time to make it work properly.
Yep, seen several of these and it just needs removing, it does nothing but restrict an already poor air flow. Inlet opposite, the outlet, probably two on the front wall, for the best flow.
My gantry was also out of alignment, it was caused by the y axis rail being out of alignment and the inept assembler then putting the belts out of alignment. I loosened the y axis rail and there was enough play in the screw holes to set it straight. Belts were then aligned just by loosening the drive coupler.
All straight now with no bending required.
If your misalignment is caused by the y axis rail then bending the x axis mount wont fix alignment, it will just make the x axis bar look straigtht but the y axis will still be running out of true. Need to measure at both ends of travel to be sure.