Hi,
I receiveid and assemblied your K8200 printer.
I checked twice all the components and the cables.
I connected the printer to the Repetier host and I got the following issues:
1/ The Y motor wasn’t moving in the manual mode even if all the other motors are working fine, so I cheched that:
- The controler was set on .425V,
- The cables are wired as expected,
- I successfully tested the imp. of the motor and the controler (I/O) from the disconnected MB cables,
- The motor is working fine (I inverted X and Y motors connectors on the MB and the failling Y motor worked well and moved with the X controler on the mother board),
- I Increased the power to .550 as described in the forum but without success,
-> It seems thet the Y motor controler isn’t responding on the main board that was provided with my K8200.
2/ The Extruder temp is alsways on 60° even if the temp in 20° arround of it:
- I started different tests but the temp displayed by Repetier is always set to 60° at normal temp even if the belt temp is at the ambiant temp arround 20°!
- The imp. tested on the belt resistor is 96 when the same imp. is tested up to 122 at ambiant temp arround 20°,
- The extruder resistor (v2) is wired properly, I don’t understand the difference of the two temps when the Extruder and the beld are not connected.
I tested this on 3 different computers with the Repetier Host from 0.84 to 0.95f.
I can’t use my K8200 with this controller issue and I need your help.
Thanks for your help.
Regards,
Eric
Hi Eric,
please check the following:
-
switch the Y motor driver with one of the others, and observe whether the error changes over to the other axis. This tells you whether the error is located in the motor driver itself (then the other axis would not move with the driver that previously powered the Y motor). However, if the error then remains on the Y axis, it would mean that there is a possible defect in the controller board.
-
Same thing for the thermistors: switch both connectors, THERM1 and THERM2. How do the indicated temperatures in Repetier Host change?
Cheers,
kuraasu
Hi Kuraasu,
Thank you for your quick answer.
I made the additionnal tests:
- I inverted the temp sensors on the MB (Extruder vs heating bed). The Extruder temp is always displayed arround 60° on Repetier-Host even if it uses the heating bed thermistor,
- The heating bed temp is displayed at 18.6° (this is the normal temp arround me) even if it uses the extruder thermistor.
=> I thing there is something wrong with the MB for the extruder temp. The min. temp is always arround 60° with both the heating bed thermistor and the extruder thermistor.
- I disconnected the E-Motor controller (Extruder),
- I disconnected the Y-Motor controller,
- I replaced the E-Motor controller with the Y-Motor controller,
- I replaced the Y-Motor controller with the E-Motor controller,
=> Now, the heating bed is moving fine in all axis (X, Y and Z) but the extruder motor do not respond anymore with the Y-Motor controller. I received no errors about the E-Motor in the logs. This means that the Y-Motor controller has a failure.
This is a brand new K8200 that I just received, the MB was handled carrefully!
Regards,
Eric
Hi Eric,
I’m afraid you may be right - it seems like you received a defective controller board and a defective motor driver, too. Actually, it is quite possible that the two errors are interconnected.
The VEL guys will be back on Monday. What I can already tell you from similar cases (you can also find these infos in other threads here in the forum), there are two ways to handle this: you can return both faulty parts either to your distributor, or directly to Velleman in Belgium. Depending on who’s the distributor, mailorder or local shop etc., the one or the other may be faster or easier for you. If you’re in N-America, there’s also a Velleman office in TX.
Cheers,
kuraasu
Hi Kuraasu,
I made all the tests I can do and I confirm that I received a faulty MB.
I’m in France, I’ll send back the MB to Velleman on tomorrow.
Thanks again for your answers.
Regards,
Eric