Have I made a mistake? (Nozzle Question)
Hello,
I tried using the nozzles linked below for my MK3S+ without realizing there are prusa-specific nozzles. They are much cheaper than Prusa nozzles and I already have them so I'd like to try and make them work. The main problem that I have is that they're not the right dimensions, more specifically the nozzle is way taller.
This seems to be a fairly unique problem and I've not found anyone else as dumb or stubborn as me on these forums so far so I'll give as much detail as possible to see if anyone can help. I'll also say that the original nozzle works fine and I still have it, I'd just like to print at a higher definition and its also 2+ years old so I thought I'd just replace it.
Since the nozzle is way taller I'd think the first think that would need adjusting is the PINDA sensor. I made the adjustment to have it go off whenever the nozzle reaches the bed instead of using the zip-tie method. This has worked for the XYZ Calibration, however, whenever getting to the Z Calibration portion I start getting this error "Sensor didnt trigger. Debris on nozzle? Waiting for reset" and from what i've read is that this error is for the Z axis however it can also activate for the X axis or Y axis being dirty, not lubricated prpperly, or just having too much tention (X axis spesific as far as I can tell). I am lost, any thoughts?
RE: Have I made a mistake? (Nozzle Question)
Update: I ran the test again and noticed something. For context when running the "Calibrating Z" test the extruder starts on the back plate, left side, and moves to the front plate, left side. When I ran this test again I noticed that when the extruder moves from the front plate to the back plate the extruder is pulled left and hits the side of the machine, this is clearly the problem, do any of you thoughts on why this is happening? or how to stop this?
RE: Have I made a mistake? (Nozzle Question)
What you bought are MK8 nozzles, what you need are nozzles compatible with E3D V6 hotends. Frankly, given that nozzles are dirt cheap, I wouldn't waste my time trying to make the nozzles you've got work and potentially damage your steel sheets. You may want to look into something like https://www.printedsolid.com/products/e3d-v6-hotend-nozzle-fun-pack for a variety of sizes.
Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...
RE: Have I made a mistake? (Nozzle Question)
these nozzles have a shorter screw thread than the prusa (e3dV6) nozzles, so if you just screw them into your heat block, they will not butt up against the bottom of the heat break and you will be in a whole heap of trouble...
You can 'Make them Work' to a degree, by careful assembly of the hot end...
Be very careful with your heater wires and thermistor wires.
You need to (Heat hot end to 280C) carefully remove the filament then remove the old nozzle, holding the heat block still with either a 17mm spanner or an adjustable spanner, and unscrewing the nozzle with a 7mm spanner.
then after cooling you should be able to take the Part cooling fan and fan shroud off front of the extruder housing Also remove the front two screws from the left hand fan, remove the front of the extruder housing to expose the heatsink inside, and ease the heatsink out of the housing,
Now screw your Mk8 nozzle, all of the way into the heatsink (this should be easy, because there is a 1mm gap between the mk8 nozzle, and the heatbreak...
However, if you have ever had a filament leak between the nozzle and the heatbreak, there will be waste filament glueing the parts together... (this will need you to re heat the hot end... )
If all is well, screw the mk8 nozzle, all of the way to the heat block, then unscrew the nozzle 1/2 to 1/4 turn to create a tiny gap between the heat block and the nozzle,
Now, screw the heatbreak into the heat block until it is firmly butting up to the back of the nozzle,
re assemble your hot end into the housing, and when all is tight, heat the hot end to 280C, then whilst holding the heat block still, tighten the nozzle against the heat break.
this procedure will have raised the heat block 1mm closer to the cold end heatsink. which is not brilliant... but as long as the nozzle butts firmly against the heatbreak inside the heat block, the nozzle should work, in the printer.
now re fit your fanshroud and part cooling fan
don't forget to do a first layer, configuration(live Z)
good luck, Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK