<p>It is normal for an Ultimaker print bed to move up. But it should be stopped before the nozzle.</p>

<p>As it doesn't stop the end stop doesn't work. So either the end stop is not connected to the right connector or it is triggering too late.</p>

<p>The Z end stop must be screwed at the right hight. If you mount it too far up it will not trigger. The bed assembly has a small wooden peace that sticks up. The idea is that that wooden peace pushes the end stop at the right hight.</p>

<p>So instead of configuring the hight in the firmware you need to mount the Z end stop at the exact right hight. You can make the fine adjustments(Bed Leveling) with the screws that hold the bed.</p>

<p>You can test the end stop by manually triggering while the bed moves up. It needs to stop immediately once you trigger the end stop. If the bed does not stop, then check the connection or exchange the switch.</p>

<p>It can happen that the switch itself malfunctions if you screwed it in too tightly. So loosening up the screws a bit is a final test.</p>

CC BY-SA 3.0
2016-08-10T01:23:27.100Z
Yes I followed these steps and it worked. Thank so much everyone. Being a person of computer science I always try to look at the software rather than the hardware.
Vraj Pandya
CC BY-SA 3.0
2016-08-09T00:15:15.497Z
2016-08-09T00:15:15.497Z
Lars Pötter
<p>I am new to 3D printing and I am assembling/calibrating an Ultimaker Original+ for my college.</p>

<p>I am done with all the assembling and the printer works fine except for one thing.</p>

<p>The print bed moves way up. It touches the extruder and pushes it upwards. So, the extruder cannot extrude any material.</p>

<p>I tried to set the Z axis value before string the print but as soon as I start the print the platform just moves up and blocks the extruder.</p>

<p>Please let me know if you need any more information from my side.</p>

CC BY-SA 3.0
2016-08-07T23:58:46.533Z
"The print bed moves way up. It touches the extruder and pushes it upwards. So, the extruder cannot extrude any material." Can you expand on this? On my newer ultimaker it touches the Z endtop (at the bed), lowers like 20mm and primes the extruder by extruding extra. Yours is not lowering? Or yours is not extruding, but instead retracting the plastic?
MakerModder
CC BY-SA 3.0
2016-08-08T00:04:21.150Z
Yes my print bed is not lowering down.
Vraj Pandya
CC BY-SA 3.0
2016-08-08T00:11:35.860Z
What software are you using? Cura? That should be part of the gcode generated by the slicer. I use simplify 3d.

Next it Can lower down normally? If not you might want to look at your end stop.
MakerModder
CC BY-SA 3.0
2016-08-08T00:22:36.920Z
I am using Cura. No after I start printing the print bed does not move down.
Vraj Pandya
CC BY-SA 3.0
2016-08-08T00:24:13.093Z
And the thing is I cannot afford any commercial software.
Vraj Pandya
CC BY-SA 3.0
2016-08-08T00:52:46.363Z
Shouldn't need to. I'd check the gcode output. Maybe post it here? (view it in a text editor)
MakerModder
CC BY-SA 3.0
2016-08-08T03:25:20.760Z
How do I do that?
Vraj Pandya
CC BY-SA 3.0
2016-08-08T03:34:17.137Z
Let us [continue this discussion in chat](http://chat.stackexchange.com/rooms/43618/discussion-between-vraj-pandya-and-starwind).
Vraj Pandya
CC BY-SA 3.0
2016-08-08T05:22:44.547Z
This is the link for the gcode file. https://drive.google.com/file/d/0ByFQsFcs3Hr1WWZMWEFpMDVvTW8/view?usp=sharing
Vraj Pandya
CC BY-SA 3.0
2016-08-08T14:13:10.113Z
This might be a stretch, but is the print bed on Ultimaker adjustable like on MakerBot's? It could just be as simple as performing a basic bed leveling routine.
tbm0115
<z-axis><ultimaker-original>
Print bed moves way up for printing
Vraj Pandya
# Print bed moves way up for printing

(Asked by: username_0 on 2016-08-07)

I am new to 3D printing and I am assembling/calibrating an Ultimaker Original+ for my college.

I am done with all the assembling and the printer works fine except for one thing.

The print bed moves way up. It touches the extruder and pushes it upwards. So, the extruder cannot extrude any material.

I tried to set the Z axis value before string the print but as soon as I start the print the platform just moves up and blocks the extruder.

Please let me know if you need any more information from my side.

**Tags:** z-axis, ultimaker-original
> **Comments:**
> **username_1**: "The print bed moves way up. It touches the extruder and pushes it upwards. So, the extruder cannot extrude any material." Can you expand on this? On my newer ultimaker it touches the Z endtop (at the bed), lowers like 20mm and primes the extruder by extruding extra. Yours is not lowering? Or yours is not extruding, but instead retracting the plastic?  
> **username_0**: Yes my print bed is not lowering down.  
> **username_1**: What software are you using? Cura? That should be part of the gcode generated by the slicer. I use simplify 3d.  Next it Can lower down normally? If not you might want to look at your end stop.  
> **username_0**: I am using Cura. No after I start printing the print bed does not move down.  
> **username_0**: And the thing is I cannot afford any commercial software.  
> **username_1**: Shouldn't need to. I'd check the gcode output. Maybe post it here? (view it in a text editor)  
> **username_0**: How do I do that?  
> **username_0**: Let us [continue this discussion in chat](http://chat.stackexchange.com/rooms/43618/discussion-between-vraj-pandya-and-starwind).  
> **username_0**: This is the link for the gcode file. https://drive.google.com/file/d/0ByFQsFcs3Hr1WWZMWEFpMDVvTW8/view?usp=sharing  
> **username_2**: This might be a stretch, but is the print bed on Ultimaker adjustable like on MakerBot's? It could just be as simple as performing a basic bed leveling routine.  

---

## 1 answers

### Answer by username_3 on 2016-08-09. Score: 2 | Accepted answer

It is normal for an Ultimaker print bed to move up. But it should be stopped before the nozzle.

As it doesn't stop the end stop doesn't work. So either the end stop is not connected to the right connector or it is triggering too late.

The Z end stop must be screwed at the right hight. If you mount it too far up it will not trigger. The bed assembly has a small wooden peace that sticks up. The idea is that that wooden peace pushes the end stop at the right hight.

So instead of configuring the hight in the firmware you need to mount the Z end stop at the exact right hight. You can make the fine adjustments(Bed Leveling) with the screws that hold the bed.

You can test the end stop by manually triggering while the bed moves up. It needs to stop immediately once you trigger the end stop. If the bed does not stop, then check the connection or exchange the switch.

It can happen that the switch itself malfunctions if you screwed it in too tightly. So loosening up the screws a bit is a final test.

> **Comments:**
> **username_0**: Yes I followed these steps and it worked. Thank so much everyone. Being a person of computer science I always try to look at the software rather than the hardware.  

---

