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Is there best way of cleaning partly-clogged nozzles? I have PowerSpec 3D Pro (Flashforge Creator clone) with Swiss Micro all-metal hotheads. Can heating cartridges and thermocouplers go bad? If I need new parts, how can I order correct ones? I don't have a thermometer with touch probes.
best way to clean an old or clogged nozzle is to unscrew it, throw it away and fit a new nozzle.
Standard brass nozzles are available for a couple quid/dollars for packs of 5.
That's what i do anyway :-)
Here are my suggestions
Search web or E-Bay for "PowerSpec 3D Pro replacement parts" you can visually compare to see obviously mismatched parts.Quote:
Originally Posted by jeffmorris
Yes all consumables can go bad.Quote:
Originally Posted by jeffmorris
I purchased the ADM02 AutoRange Digital Multimeter from E-Bay work great, for testing temperature of hot-end and bed. It can measure voltage, current, resistance, diodes, transistors and continuity. This is a great bargain for a low cost.Quote:
Originally Posted by jeffmorris
https://www.ebay.com/sch/i.html?_fro...ADM02&_sacat=0
Get some eSun cleaning filament and use it on a regular basis. For clogs, remove nozzle and cook out the clog wit a micro torch. Make sure you have several spare nozzles on hand at all times.. Torching can be done while the new nozzle is printing!
I thought that eSun cleaning filament worked but I couldn't load PLA filament into the extruders. I replaced one of the nozzles with a new one and removed another nozzle from a second extruder. I thought that I finally 3D-printed a part for a model of a manual transmission but the part failed about 2/3 of the way up. The company that makes Flashforge printers has spare parts that I need.
I use cold pull method to clean nozzles. I actually try to do it every time when changing filament to make sure the new filament prints fine. With PLA it works quite good, but with PETG and ABS not that good, the tip doesn't come out fully. Nylon is also a relatively good cold pull filament, but I rarely print with it.
http://bukobot.com/nozzle-cleaning
I tried the cold pull but the filament was stuck. I heated the extruder to 230C and pulled the filament out. The end of the filament was thicker than the rest of it. Should I pull the filament out after printing something and I think I don't use the printer for a while?
Yes, you should remove the filament and place the spool in a ziplock bad with silicone descant. I just cut the filament the drive and the when it is time to print again, heat, retract the short piece that is in there and load the spool
Did you heat the nozzle? If the nozzle is cold, the filament won't budge. How I do cold pull: with the nozzle at room temp, set the the nozzle to heat up, I usually just set PLA target temp. After the nozzle has heated up to ~80C, start pullin the filament out of the nozzle, it'll need some force to come out so make sure you have good grip. After the filament releases, it should have a uniform tip (like the inside of the nozzle). If not, the tip of the filament is still inside of the nozzle and cold pull failed.Quote:
Originally Posted by jeffmorris
Normally when the Filament is thicker after pulling it. It is because there is a gap between the Nozzle and throat cold-end. This gap allows the filament to pool causing the clog. Or in my case the PTFE tube has became deformed allow a area for the filament to pool causing a clog.Quote:
Originally Posted by jeffmorris
Swiss Micro all-metal hotheads don't have PTFE tubes. So far, no problems with new nozzle. I ordered more nozzles and got them today.
Yes.
Was comparing a Possible Gap in your Hot-end setup with. (" in my case the PTFE tube has became deformed causing the filament to pool and clog ")
Glad your repaired hot-end seems to work.
I print these..https://www.thingiverse.com/thing:492067 I stuff them with a piece of sponge and install on every spool of filament. This goes a long way towards keeping the nozzles clean as it cleans the dust off the filament before it goes into the extruder.
Using "cold pull" method (i've read somewhere long ago) with neylon, i'm sure cleaning nozzle with acetone will work too
When you find you do need to clean the nozzles, you can try several different procedures. The same cleaning cycle you used for the print head can be used for the nozzles. Also, check to see if your model of printer houses the nozzles on the ink cartridges or on the printer. If they're on the cartridge, and the cartridge is mostly empty, you can just replace it. The new nozzles will obviously be unclogged.
This is the great post and I am glad that I found this article thanks for sharing this interesting and useful post. and the way you express your al the details about how to clean clogged nozzle is too good...
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