26

Re: Pangu i3 .. the best price / quality ratio ?

Reduit la distance  entre le lit et l'extrudeur en te servant de ta vis de fin de course de Z [Par coup de quart de tour]. Nettoie ton lit avec de l'acetone et tu peux aussi booster ta temperature d'extrudeur à 230... moi je ne depasse pas le 220 mais faut que le lit soit bin chaud à au moins 100 deg ..

Si avec ça passe toujours pas.. on va prendre d'autre mesures.... tu as bien aussi une couche de kapton sur ton lit non?

27 (edited by manu01 2014-03-04 23:13:08)

Re: Pangu i3 .. the best price / quality ratio ?

salut,

Je n'ai pas réussi à importer le .ini. J'ai donc configuré Slic3r à la main!!

Sinon jai un peut avancé et maintenant, l'ABS s'écoule de maniere homogène (même s'il s'ecoule trop vite à mon gout). Pour cela,  j'ai agrandi le resort sur l'extrudeur.

Mais l'ABS n'adhère toujour pas:
- J'ai bien le Kapton.
- Pour la distance entre l'extrudeur et le lit, je suis descendu jusqu'à une feuille du lit.
- J'ai aussi augmenté la température du lit jusqu'à 110°c. Par contre, je me demande si mon capteur de température du lit est OK. En mesurant avec un multimetre (FLUKE) qui fait également température, je mesure 91°c à la place de 110°c. qui dois-je croire, l'imprimante ou le multimetre!!!!
- Par contre, peut etre que mon lit est sale!!!!!

=> Programme pour demain: Remplacer le Kapton, nettoyer le lit avec de l'aceton et regler la temperature du lit avec un thermometre laser (si j'en trouve un).

En tout cas, c'est vraiment cool de m'aider :-)

28 (edited by ysb 2014-03-05 11:11:02)

Re: Pangu i3 .. the best price / quality ratio ?

On va se deplacer dans la section francophone... car c'est plus simple pour discuter du probleme ...[ http://www.soliforum.com/topic/5755/pangu-i3/ ]

29

Re: Pangu i3 .. the best price / quality ratio ?

Hello,

I just got a pangu i3 printer two days ago. This printer is my first 3d printer and I found it to be relatively easy to assemble. I am however having trouble with the electronics side of things. I flashed ysb's marlin firmware with relative ease. I am now struggling to get the y and x motors to move. I have z axis movement and the hot end and hot bed have reached operating temp. I was testing the motors with the manual controls In repeiter host.

Im not sure what to do from here, so if anybody has any idea let me know.

30 (edited by ysb 2014-03-06 13:45:18)

Re: Pangu i3 .. the best price / quality ratio ?

are you sure your X and Y motor are properly connected ?

do you do a 'home' in repetier-host before trying to move them ?
can you move the XY in manual ?

31

Re: Pangu i3 .. the best price / quality ratio ?

I have mine wired based off of the pictures on the SD card. I believe its right. I had a three axis working until I realized that bed and hot end backwards. After putting them in the appropriate place the z motor only works. I'll go over my wiring one more time just to make sure its done right.

Is it possible let that I fried my melzi board somehow?

32 (edited by ysb 2014-03-06 17:22:42)

Re: Pangu i3 .. the best price / quality ratio ?

the problem is that if all is working at start, you can reverse the motor just by changing a value in the firmware..

but no, if you mix the connection of the motors, you can't fried your card...

use this picture for the connection :

http://www.rp3d.com/bmz_cache/1/10b483ed82c36bcc8a5f2a8bf4ce4bab.image.550x550.jpg

use the same color at the same place..

X and E (xtruder)  and  Y et Z use different connection : do the same

33

Re: Pangu i3 .. the best price / quality ratio ?

I have my board wired up exactly like that and still am getting no movement from x or y. However I did find that the extruder stepper driver gets HOT seconds after plugging it in to external power, and when checking the voltages at the stepper pot it reads 5.5v compared to the .5v of the x y and z drivers.

I checked these pot values while having the melzi powered by the USB and found them all to be about .5v which I believe is a reasonable value.

What could cause this high voltage accross the e stepper driver?

34

Re: Pangu i3 .. the best price / quality ratio ?

Hi,
Its my first post on the forum so, Hello everyone smile
What I want to write about is that I bought the Pangu i3 and have had it for about two months now. It was printing fine with stock firmware but i eventually decided to get to know this side of the reprap experience and a few days ago i flashed the firmware. I used the one the Marlin one that was uploaded earlier in this topic, did some calibration and now all the motors are moving with correct steps But.... The extruder motor seems to have not enough power now...
The changes i recall since it was okay are:
•I switched to purple filament from natural. Its 3mm. I dont think thats the issurle becayse the natural isnt working either.
•the firmware update
•new slicer version
•the extruder temp might be low, even though i used to print with 220°, and now 240° aint enough....
•or maybe something completely else.

Overall, the motor works for a while and pushes the filament successfully, although a little slow I think. But after just a short while it starts slipping, the direct grip bolt rotatea through the filament and gets full of plastic and thats it. Its really hard to push the filament by hand too.

Any ideas, tips and help will be useful. Thank you.

35

Re: Pangu i3 .. the best price / quality ratio ?

krakadu wrote:

Hi,
Its my first post on the forum so, Hello everyone smile
What I want to write about is that I bought the Pangu i3 and have had it for about two months now. It was printing fine with stock firmware but i eventually decided to get to know this side of the reprap experience and a few days ago i flashed the firmware. I used the one the Marlin one that was uploaded earlier in this topic, did some calibration and now all the motors are moving with correct steps But.... The extruder motor seems to have not enough power now...
The changes i recall since it was okay are:
•I switched to purple filament from natural. Its 3mm. I dont think thats the issurle becayse the natural isnt working either.
•the firmware update
•new slicer version
•the extruder temp might be low, even though i used to print with 220°, and now 240° aint enough....
•or maybe something completely else.

Overall, the motor works for a while and pushes the filament successfully, although a little slow I think. But after just a short while it starts slipping, the direct grip bolt rotatea through the filament and gets full of plastic and thats it. Its really hard to push the filament by hand too.

Any ideas, tips and help will be useful. Thank you.

You have a clogged nozzle it's covered many times her on the forum.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

36

Re: Pangu i3 .. the best price / quality ratio ?

I had a spare hotend and switched them before posting here. The new one had the same issue... Im sceptic about this but will read some discussions anyways.

37 (edited by ysb 2014-03-08 18:15:35)

Re: Pangu i3 .. the best price / quality ratio ?

are your extruder the original pangu i3 one ? ..cf direct drive j-head.. ?

the marlin i upload was for 1.75mm .... perhaps, you need a longer time for the proper temperature in the hot chamber...

at 200 deg, the filament falls by itself from the extruder...

i can see two things.. the temp of the extruder or the speed of the extruder motor....

38

Re: Pangu i3 .. the best price / quality ratio ?

That must be it, my filament is 3mm but I never adjusted the extruder speed so it must be using your setting for 1.75mm.
Do I just lower the speed proportionally? like if its set to x, i need to use x*[(1.75/3)^2]?

I'll try it on Monday. Thanks for the help smile

39

Re: Pangu i3 .. the best price / quality ratio ?

Folks,

THANKS! smile

40 (edited by Cookiemonster 2014-03-13 15:36:31)

Re: Pangu i3 .. the best price / quality ratio ?

I have got the Auto Bed leveling working on the Pangu I3.
It is the modified version of ysb, but for 3mm / 0,5mm extruder, and solves a lot of tinkering with the bedheight before printing.
I will post the source code if there is demand for it.
Iam implementing i2c LCD routines for the Eeetech LCD/rotary/buzzer after i recieve my i2c converter sad

41

Re: Pangu i3 .. the best price / quality ratio ?

Hello Cookiemonster,

I’m very intereseted with your auto bed leveling adaptation and the modifications you've made for 3mm.0.5mm extruders.

I began with no knowledge on 3d printing and my prints are now better thanks to Ysb. ;-)
I also plan to make a post summaring  all pangu I3 updates !!!

Many thanks  in advance.

42

Re: Pangu i3 .. the best price / quality ratio ?

Of course we want....

JUst for information : if you didn't do it already (like me),  look into your sd card of your pangu kit... there is a lot of things into it.. even some that are not really really legal ;-)  ... [but it's a speciality of chinese market]

43

Re: Pangu i3 .. the best price / quality ratio ?

Steps/mm for the extruder is kept in the firmware.

Speed of extruder is kept in the Slicer.

Chuck Bittner is a quadriplegic gamer who is petitioning the major console developers to include internal button remapping in all console games. You can help.
Sign Chuck Bittners petition

44 (edited by Cookiemonster 2014-03-16 13:50:09)

Re: Pangu i3 .. the best price / quality ratio ?

The bed leveling seems to work pretty good, 9 grams servo connected on GND,+5V and D4. (PIN28)
Iam thinking of doing a seperate 5v supply, with an 7805 but right now all seems fine on the EXT header.

The Z endstop switch can be mounted on the servo arm. altough you may need thinner wire for not influencing the arm when positioning.

The STL for the servo mount can be found here: thingiverse.com/thing:252089
The firmware needs to be corrected to the dimensions of your own servo setup of course.

Modified Firmware:
  dropbox.com/s/huxvmb8hsml5whh/MARLIN_2014-03-16_Pangu_i3_ABL.rar

I use Arduino 1.0.1 to compile, with the added hardware and library's for melzi & lcds.
  dropbox.com/s/0ke7myxojt4i6ct/Arduinov101.rar

It is advisable to follow this guide to calibrate: soliforum.com/topic/4714/automatic-bed-leveling-and-z-offset-howto-level-23/

When complete, edit the Start G-code to do auto bed leveling in stead of 'normal' z calibration:
G28 X0 Y0 ;home X and Y
G29 ;probe bed
G90; set absolute coordinates

Please keep me posted on your updates!

45

Re: Pangu i3 .. the best price / quality ratio ?

thanks cookiemonster... you win a cookie wink

46

Re: Pangu i3 .. the best price / quality ratio ?

..Omnomnomnom!

47

Re: Pangu i3 .. the best price / quality ratio ?

Super!!!

Thank you very much!!

48

Re: Pangu i3 .. the best price / quality ratio ?

Oops.. i meant the A3 instead of A4 big_smile

In the meanwhile i have changed a few things in the firmware for acceleration to perfect filling & bridging.

#define DEFAULT_MAX_FEEDRATE          {500, 500, 3, 45}    // (mm/sec)
#define DEFAULT_MAX_ACCELERATION      {9000,9000,100,300} 

#define DEFAULT_ACCELERATION          1000    //3000 X, Y, Z and E max acceleration in mm/s^2 for printing moves
#define DEFAULT_RETRACT_ACCELERATION  1000   //3000 X, Y, Z and E max acceleration in mm/s^2 for retracts

The default acceleration can be set individually, depending on your own setup of course.
Also check if your m6 threaded rods spring down if they are pushed on, the should be in contact with the stepper shaft. (as mentioned by ysb previously)

49

Re: Pangu i3 .. the best price / quality ratio ?

you can change it in the eeprom in repetier-host.. no need to reflash your firmware..

50 (edited by manu01 2014-03-25 10:57:07)

Re: Pangu i3 .. the best price / quality ratio ?

Hello,

Has anyone already tried to print something precise as a screw and its bolt?
I have a pangu I3 with standard extruder (0.5mm - 3mm) and I use ABS from RP3D and 0,1mm per layer.
I tried this one: http://www.thingiverse.com/thing:8796 with no sucess.


I would also like to try this planetary gear http://www.thingiverse.com/thing:23030/#files but I really wonder if pangu I3 can do it.

Thanks