Assembling troubles, should I proceed anyway?
I'm at the end of chapter 5, assembling core xy group, but I'm unsure whether to proceed further or not.
I can see two possible problems, the first one is the z-axis touching the rear bed spacer. It appears it's not centered. Possibly the z-axis motor is not perfectly vertical. Should I try to unmount the motor at the bottom and fix it?
In the same area the x-motor belt seems to rub against the fan cover, but I don't see any error in following the assembly procedure... am I the only one noticed this?
RE:
I'm at the end of chapter 5, assembling core xy group, but I'm unsure whether to proceed further or not.
I can see two possible problems, the first one is the z-axis touching the rear bed spacer. It appears it's not centered. Possibly the z-axis motor is not perfectly vertical. Should I try to unmount the motor at the bottom and fix it?
In the same area the x-motor belt seems to rub against the fan cover, but I don't see any error in following the assembly procedure... am I the only one noticed this?
For the z-axis rod, that's not too worrying. Move the bed up and down and observe the position; it'll probably move toward the center. If it's always putting pressure on the top holder, you could adjust the screws holding that motor: loosen slightly on the right, tighten slightly on the left and see if that pulls the shaft into position. Since those screws go into plastic, don't put a lot of tension on them. However, getting the bed to travel up and down fully before doing anything to allow for the bed to "settle in" to position is prudent before making changes.
For the belt hitting the tie-wrap holding the sensor on the fan: you should check for clearance. Can you press backwards on the belt and get it to move? If so, it's not rubbing and nothing to worry about. If it is, I'd re-do that tie-wrap.
RE: Assembling troubles, should I proceed anyway?
Loosen the screws from the trapezoidal nut, center the rod with your finger, hold it in place and tighten the screws
RE: Assembling troubles, should I proceed anyway?
Loosen the screws from the trapezoidal nut, center the rod with your finger, hold it in place and tighten the screws
Thanks, that helped a bit. The rod still touches a little when the bed is fully down, but it seems to get better while the bed is moving up. I'm wondering if that is going to cause print issues, though...
About the belt hitting the tie-wrap, looking at the english assembly instructions I found comments from other users describing the same issue. They solved by just cutting out the part of the grid with the tie-wrap, I did the same and now the belt can nicely move without rubbing anything (and the temperature sensor still stays in place with no problem). Perhaps it's a design issue which should be solved in a future hardware release.
RE: Assembling troubles, should I proceed anyway?
Thanks, that helped a bit. The rod still touches a little when the bed is fully down, but it seems to get better while the bed is moving up. I'm wondering if that is going to cause print issues, though...
About the belt hitting the tie-wrap, looking at the english assembly instructions I found comments from other users describing the same issue. They solved by just cutting out the part of the grid with the tie-wrap, I did the same and now the belt can nicely move without rubbing anything (and the temperature sensor still stays in place with no problem). Perhaps it's a design issue which should be solved in a future hardware release.
It won't cause any print issues. Just lower the bed far enough down so you can still get your hand and a hex wrench in to loosen and tighten the screws, center the rod then tighten.
With regard to hitting the tie wrap I reprinted the cover in PC CF and pushed the tie wrap loop until it was as flat as possible.
RE:
Thanks, that helped a bit. The rod still touches a little when the bed is fully down, but it seems to get better while the bed is moving up. I'm wondering if that is going to cause print issues, though...
About the belt hitting the tie-wrap, looking at the english assembly instructions I found comments from other users describing the same issue. They solved by just cutting out the part of the grid with the tie-wrap, I did the same and now the belt can nicely move without rubbing anything (and the temperature sensor still stays in place with no problem). Perhaps it's a design issue which should be solved in a future hardware release.
You need to loosen the screws which hold the trapezoidal nuts (all of them at once) while the bed is fully down. That should get you the correct nut position. As the bed moves up, the Z motor mounts can flex a bit, but in the bottom position, only the nuts provide the necessary degrees of freedom to get consistency between the lead screws and the (fixed) smooth vertical rods.
Regarding the cable tie, I recommend to wait with any corrections until the belts have been tightened in a later step. In most builds, that pulls the belts inward far enough to let them clear the cable tie.