26 Reply by carl_m1968

  • carl_m1968
  • carl_m1968
  • Member
  • Offline
  • From: Far North almost not Dallas
  • Registered: 2014-10-17
  • Posts: 6,512

Re: Da Vinci Junior 1.0 heartache

Magic Matt wrote:

I've ordered a set of NTAG213 stickers. I'm going to systematically go through all the "colours", and see if it makes any difference. I'm sure somebody on the pages can make use of the data too.

With the system doing as it is now, the temp is effectively manually set from 190 to 210, which doesn't seem right anyway.

That is the actual range for most third party PLA.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

27 Reply by yizhou.he (edited by yizhou.he 2018-01-12 17:14:53)

  • yizhou.he
  • yizhou.he
  • Member
  • Offline
  • From: Boston, MA
  • Registered: 2017-07-05
  • Posts: 1,322

Re: Da Vinci Junior 1.0 heartache

carl_m1968 wrote:

If it was stuck plastic then it would not matter what speed you run it, the problem would still be there. However he said when he slows down it goes a way. That being said his problem is what he suspects and not the same as the one you had.

The firmware update he got is ignoring the temp set in the carts and instead is using a default global temperature. I no longer have an XYZ machine but from what I have heard the newer host for those machines allows you to modify the temps. I also would bet that some where in the settings there is an allowance for it to simply use the carts temp but in his case that is not enabled. So the machine is using a default temp that is too low for the speed is running.

I have used many printers and I rarely see one whose reported hotend temp is correct. I have seen a variance of up to 20 degrees. In those case you simply have to use trial and error and keep increasing the temp by 5 until it can print all of a layer with no thumps.

I don't know for sure if it is stuck plastic or the inner PFTE tube scratched when I declog the hotend. It happened with my first jr stock hotend twice, the hotend is clogged and I cleaned it. I was still very newbie with 3D printer at that time. after I cleaned it, filament goes though, but does not came out as smooth as before. I have mild under extrusion problem and extruder clicks at first layer. Print at lower speed or low layer height improves. Printing at higher temperature (I increase temperature 15C higher than usual) also improves the extrusion. All problem is gone after I replace the throat. I can go back to normal temperature and have no issue print at 0.3mm layer height. After I switch to E3D clone, this problem did not show up again.

In my experience, printer have different heat block/thermostats or running different firmware report different temperature. the difference can be up to 20 degrees. All my printer that switched to E3D clones and use marlin firmware report same temperature with error of 0.1 degree.

(Da Vinci 1.0, Jr. 1.0 RAMPS, miniMaker) X4, (Creality CR-10S, CR-10 mini, Ender-3) X4, Anycubic MEGA X4, Anycubic Chrion X1, ADMILAB Gantry X2 (MonoPrice Maker Select V2, Plus, Ultimate)X4--Select mini X1, Anycubic photon X4, Wanhao duplicate D7 X1.
iNSTONE Inventor Pro X2, CTC Dual X2, ANET-A8, Hictop 3DP-11, Solidoodle Press, FLSUN I3 2017X1