I'm having trouble with my new V4 machine. The print quality is just worse than what I'm used to from my old V1. See pics. The walls aren't smooth. Tried all the usual... new nozzles, tightening everything up, tested different softwares, filaments, etc.
After all this I noticed one thing that is very different on the V4 compared to the V1. The V4 has tons of play in the linear printhead bearings (see video, turn sound on)…the V1 has absolutely zero play. I also think the V4 runs hotter…causing the blobbing/stringing.
In regards to the play of the head: is there a way to get rid of it? I tried to adjust all the set screws, the rail blocks, nothing helps. Even if you put pre-tension on the rails through the rail blocks, which then causes binding in the corners, the play does not get better in the center area.
I'm having similar issue lately with my v4 . I printed a 180 mm rod and layers start shifting near the end. I attached a photo of that rod. I have no idea why it happens but hope someone can help solve this issue.
It could be that this narrow rod structure is simply too unstable...and the longer it gets, the more the nozzle can drag it around...
If you happen to see this also with stiffer structures: check if your ball screw nut still has play in the attachment screws when the platform is all the way down. The ballscrew nut base has its screws not tightened on purpose to avoid any wobble from the ballscrew being transferred into the print platform. Compare the looseness of the nut base with the platform higher up and near the bottom. If the play is less near the bottom, it could be that some screw wobble makes it into the print. If that's the case, then you could try to re-seat the lower pillow block of the ball screw until there's play.
On that note... that's another thing I noticed with the V4. The ball screw wobbles like crazy. It really makes use of all the slop it has in the screws. In comparsion, the screw in the V1 has no visible wobble.
I'm having trouble with my new V4 machine. The print quality is just worse than what I'm used to from my old V1. See pics. The walls aren't smooth. Tried all the usual... new nozzles, tightening everything up, tested different softwares, filaments, etc.
After all this I noticed one thing that is very different on the V4 compared to the V1. The V4 has tons of play in the linear printhead bearings (see video, turn sound on)…the V1 has absolutely zero play. I also think the V4 runs hotter…causing the blobbing/stringing.
In regards to the play of the head: is there a way to get rid of it? I tried to adjust all the set screws, the rail blocks, nothing helps. Even if you put pre-tension on the rails through the rail blocks, which then causes binding in the corners, the play does not get better in the center area.
My V4 units have some play in the print head [no issues].
Maybe upload the stl if possible?
It could be that this narrow rod structure is simply too unstable...and the longer it gets, the more the nozzle can drag it around...
If you happen to see this also with stiffer structures: check if your ball screw nut still has play in the attachment screws when the platform is all the way down. The ballscrew nut base has its screws not tightened on purpose to avoid any wobble from the ballscrew being transferred into the print platform. Compare the looseness of the nut base with the platform higher up and near the bottom. If the play is less near the bottom, it could be that some screw wobble makes it into the print. If that's the case, then you could try to re-seat the lower pillow block of the ball screw until there's play.
On that note... that's another thing I noticed with the V4. The ball screw wobbles like crazy. It really makes use of all the slop it has in the screws. In comparsion, the screw in the V1 has no visible wobble.
Could also be hitting resonance frequency of the rod
I’m sorry Marcin. I’m using the V4 at work and I print proprietary stuff I can’t share. 😕
I decided to contact 3D Proshare now. I bought the printer from them and it’s still under warranty. First contact was great. They responded right away. Let’s see what we can find out. I’ll keep you posted.
I'm sorry Marcin. I'm using the V4 at work and I print proprietary stuff I can't share.
I decided to contact 3D Proshare now. I bought the printer from them and it’s still under warranty. First contact was great. They responded right away. Let’s see what we can find out. I’ll keep you posted.
Marcin, I just can't. It's confidential. You would have to sign an NDA.
Anyway.... ;)
I got the response from 3D Proshare. They say the play in the bearings of my V4 is not normal. It shouldn't have any play (which is the case on my V1...it has zero play).
They also said that the thermocouple might be bad causing the blobbing/stringing.
They will send me a new thermocouple under warranty, but they can't send new linear bearings for the printhead because the do not stock them. They said I should contact Zortrax to request the bearings. I will send you a PM, Marcin.
I'm having similar issue lately with my v4 . I printed a 180 mm rod and layers start shifting near the end. I attached a photo of that rod. I have no idea why it happens but hope someone can help solve this issue.
This is due of temperature or print material type I found thin and very long parts like a this start to wobble at some point. Putting foil bag on the printer (not good solution) or using PETG or HIPS (best solution) will solve problem or you can add something at design stage which can help to support this rod at some point your 180mm rod is not stable anymore.
This is due of temperature or print material type I found thin and very long parts like a this start to wobble at some point. Putting foil bag on the printer (not good solution) or using PETG or HIPS (best solution) will solve problem or you can add something at design stage which can helÙ¥p to support this rod at some point your 180mm rod is not stable anymore.
I will try printing with petg and hips and see if it works well. I will also try printing with ABS for lower height
