Hi.

I have ran in to a problem which I could not solve by myself. The printer I own is a Flashforge Pro printer with dual extrudes. It is only a few months old and have only printed a handful prints. However those few prints are 40+ hours each.

I am new to the 3D printing world and have run in to a problem I could not find a solution on google.

I have recorded my problem. Warning, it is kind loud.

https://www.youtube.com/watch?v=kNfiz9Wst2U&feature=youtu.be

It all started with my prints started to shift mid print, like the leaning tower in Pisa. So after 13 hours in to a 29 hour print i stopped the print because it was way to crocked and was on its way of the print bed. So to investigate my problem I loaded up a new print. This time a small chips clip that would only take one hour to print so I could sit and keep an watchful eye on the print.

As soon as it was heated up and started printing it started moving more and more to the left… I saw it… it was every layer instead of every 20-30 layers. The entire print head was shaking and seamed like skipping on the bands that pull it back and forth. I first thought my print nozzle was dragging on the bed so I tried level my bed… That’s is when it just stood still in the middle shaking and jumping and making all kinds of noise. I stopped the leveling program and removed the entire block and tried to level the bed again. Still the same. (Like in the video)

I tried cleaning the bands and looking for missing teeth’s but could not find any problems.

I searched the web of Internets and could not find an answer to what could be wrong so I am now asking for advice on how I can proceed.

Thanks in advance.

Since the problem is coming for the x axis motor there is 90% chance that the cable to the x axis motor coming from the driver board is faulty or the driver board itself is faulty. I have faced the similar issue and in my case the driver board for x axis was faulty.

To fix this first remove and exchange the x and y axis driver boards by getting access to the motherboard. If the same problem now replicates on the y axis motor, you have a faulty driver board which is now on the y axis (originally on x axis). If the problem is still with the x axis even after exchanging then the x motor cable is faulty. Either way the problem will be among these 2 things only.

Check once and try the steps i told above. Let me know if you have any doubts.

I was able to fix the problem after a lot of trial and errors… The problem was a faulty cable from the X-axis motor and the motherboard. After replacing that cable it worked perfect once again…

Thanks lakshaywadhwa17 for the advice to where to look…

The problem is now resolved.