1 Topic by jure.simon (edited by jure.simon 2020-03-26 07:33:59)

  • jure.simon
  • Member
  • Offline
  • Registered: 2019-05-12
  • Posts: 23

Topic: Da vinci Minimaker - nozzle constatly getting clogged

Hello.

I have a problem with my minimaker. The nozzle head keeps getting clogged. It clogges right away after i clean it and load the new filament.

Yesterday I took the head apart. And cleaned it using hand to heat the nozzle up and cleaned it up. During cleaning i noticed that the threaded rod that holds the heatsink has a thin nylon or teflon tube in it. The closer inspection revealed that the tube was damaged on the side, probably because of cleaning? How imporant is that tube because i think that this is the reason the filament keeps getting jamed? I took the tube out it helped. The printer printed for about 2hours but then it clogged up again.

I don't know what else to do. Is it possible to replace only the nozzle? Been looking around and could only find complete extruders.

Thank you in advance
Jure

2 Reply by jure.simon

  • jure.simon
  • Member
  • Offline
  • Registered: 2019-05-12
  • Posts: 23

Re: Da vinci Minimaker - nozzle constatly getting clogged

It turned out that that tube in heatbreak is kinda important, because now ti clogged there. Anyone knows where to get them fro Da vinci Minimaker? Or alternative that fists and would work.

http://soliforum.com/i/?JOLg3nC.jpg
http://soliforum.com/i/?zr9Z0JD.jpg

3 Reply by jure.simon (edited by jure.simon 2020-03-31 08:03:38)

  • jure.simon
  • Member
  • Offline
  • Registered: 2019-05-12
  • Posts: 23

Re: Da vinci Minimaker - nozzle constatly getting clogged

Could't find the correct part since the heat sink thread is 1.0 and nozzle thread is 0.5 and the width of the thread is the same on both ends 6mm. Also didn't get any answer yet from XYZPrinting. So my current solution is to replace the the PTFE tube. I contacted the supplier and the tube is on the way. Hope this works (fingers corssed).

4 Reply by jure.simon

  • jure.simon
  • Member
  • Offline
  • Registered: 2019-05-12
  • Posts: 23

Re: Da vinci Minimaker - nozzle constatly getting clogged

IT'S ALLLIIIIVVEEEE!!!! I got the PTFE tube in mail today. So far the fix worked, it's been printing for around 3h without getting clogged. Relatively cheep fix. I got 1 meter of PTFE tube for around 5 EUR + shipping.

5 Reply by iceguy7878

  • iceguy7878
  • Newbie
  • Offline
  • Registered: 2020-05-07
  • Posts: 2

Re: Da vinci Minimaker - nozzle constatly getting clogged

Hey, any chance that you could share the size of the PTFE tube or a link?

I just bought a nano and can't get anything to print for longer than 30 minutes or so due to constant clogs. I pulled out the PTFE tube from the hot end and there is definitely a major clog. I also bent it pretty bad at one end so I can't get it back in.

I'm hoping that the your resolution is the same as mine.

6 Reply by iceguy7878

  • iceguy7878
  • Newbie
  • Offline
  • Registered: 2020-05-07
  • Posts: 2

Re: Da vinci Minimaker - nozzle constatly getting clogged

For anyone interested, this was resolved with a new PTFE tube being changed out in the hot end just like the OP mentioned.

I'm using a Nano and was never able to get anything to print for longer than 30 minutes or so. I opened the hot end cartridge and took the hot end apart, and I found that the point where the PTFE tube and the hot end nozzle connect was clogged beyond repair. I was able to remove the plastic from the metal threaded tube that connects to the hot end nozzle and replace it after ordering the correct sized tubing (2nd attempt). This seems to have corrected the issue.


Tubing inside hot end = 3mm OD x 2mm ID (fixed the issue)
https://www.amazon.com/gp/product/B078S … &psc=1

Filament tubing from the extruder to hot end = 4mm OD x 2mm ID (will keep as a spare part)
https://www.amazon.com/gp/product/B01CU … &psc=1

7 Reply by dweith

  • dweith
  • Member
  • Offline
  • Registered: 2020-04-29
  • Posts: 22

Re: Da vinci Minimaker - nozzle constatly getting clogged

It is become more apparent that XYZ uses the same parts across their hotends.  I had the same problem with heat-creep up up the filament tube leading to horrible clogs.

As a result I did convert the hotend over to a E3D Lite6 and clones for quite sometime until this same question pop up on a different forum on how to change the nozzle on a Da Vinci 1.0 hotend.

I figured out a way to use a MK8 heat throat, Capricorn XS PTFE Tubing. steel weld nut, 70-99% IPA, high grade thermal compound and an E3D V6 style heat block sporting a silicone sock.

Would anyone be interested in attempting the solution on a Jr or Nano printer?  https://www.thingiverse.com/thing:4310524

Exploded Da Vinci 1.0 hotend heatsink/nozzle assembly:
http://soliforum.com/i/?ORjClTZ.jpg

Completed Da Vinci Pro 3 in 1 hotend:
http://soliforum.com/i/?UX2FqQ5.jpg

http://soliforum.com/i/?iyNfTVw.jpg

Print Sample using Sunlu ABS Filament; .3mm, 235 C & 45mm/S and prior to retraction setting tweaked:
http://soliforum.com/i/?486XrQx.jpg

The base heatsink does not need any modification and could be restored to use the OEM components.  To be sure the weld nut will work the heat throat hole will need to be approximately 7.7 - 8.2 mm in diameter.

I have some spare M6 weld and hex nuts and might be able to help with some other items, but it would not be much more than a couple of people.

8 Reply by sbarabe

  • sbarabe
  • Member
  • Offline
  • Registered: 2020-03-28
  • Posts: 14

Re: Da vinci Minimaker - nozzle constatly getting clogged

Hi,

My minimaker hothend is clogged and filament had broke from trying to pull it out. Now all I'm seeing is a little stub I can get hold from. So it's really jammed and I think I need to disassemble the hotend. It doesn't seem to be done easily with the minimaker. Is there anyone who can help me as where to start ?

Any tips welcome!

9 Reply by sbarabe

  • sbarabe
  • Member
  • Offline
  • Registered: 2020-03-28
  • Posts: 14

Re: Da vinci Minimaker - nozzle constatly getting clogged

I did take time to take down the hotend, with two toddlers running around... It went well and I find out that filament had made a chunk
between the hotend top and tube holder. So I took it out and reinstalled hotend. Then I made a cleaning cycle and use the pin in the xyzprinting kit to push the remaining filament out.

I reloaded the filament PLA Eryone red but it starts thuding in the loading cycle. So I've stop and decide not to use that filament. I've put another one that I have use before and all worked well.

Anyone succeeded in using Eryone with Minimaker?

sbarabe wrote:

Hi,

My minimaker hothend is clogged and filament had broke from trying to pull it out. Now all I'm seeing is a little stub I can get hold from. So it's really jammed and I think I need to disassemble the hotend. It doesn't seem to be done easily with the minimaker. Is there anyone who can help me as where to start ?

Any tips welcome!

10 Reply by jure.simon

  • jure.simon
  • Member
  • Offline
  • Registered: 2019-05-12
  • Posts: 23

Re: Da vinci Minimaker - nozzle constatly getting clogged

Hey

Sorry for late response. I took mine completely apart. The issue was with the damaged PTFE tube. After replacing that tube it started to print again.

With me the cleaning cicle went thorug ok, but when I loaded the filament again it got stuck on the same spot as before. So I repeted the cleaning cycle again and with the same result.

Then I took my heat sink apart and removed the PTFE tube wich was visibly damaged. Proably due to improper cleaning? My brush got damaged at the end and I think that that part made the damage?

The dimesions of the tube is:
- outer dimension: 3mm
- inner dimension: 2mm

Regards
Jure

11 Reply by kenannur16

  • kenannur16
  • Newbie
  • Offline
  • Registered: 2021-01-10
  • Posts: 8

Re: Da vinci Minimaker - nozzle constatly getting clogged

Thank you very much for the solution. I cut the damaged part of the tue and insert it to the metal tube again. I use Da vinci Jr. I had clogging problem. It seems resolved smile

12 Reply by dweith

  • dweith
  • Member
  • Offline
  • Registered: 2020-04-29
  • Posts: 22

Re: Da vinci Minimaker - nozzle constatly getting clogged

Capricorn 3mm OD x 2mm ID link: https://bit.ly/2VixuNQ