<p>Qidi X-Max.  PLA printing temp 200 °C build plate temp 60 °C.</p>
<p>I am using the back of the magnetic plate that came with the machine (the white front is a little worn out from ABS printing. the back is smooth and has worked pretty well.  I am using Elmer's glue stick on the build plate.</p>
<p>The first corner where the inside of the bottom layer is getting filled with diagonal lines leaves a void.  The opposite diagonal corner, where the head is making short traverses is OK.</p>
<p><a href="https://i.sstatic.net/oTtWtigA.jpg" rel="nofollow noreferrer" title="Photo of a the first layer of a model with a void in the first corner just inside the outline passes."><img src="https://i.sstatic.net/oTtWtigA.jpg" alt="Photo of a the first layer of a model with a void in the first corner just inside the outline passes." title="Photo of a the first layer of a model with a void in the first corner just inside the outline passes." /></a></p>
<p>Not sure where to start. I can't find the &quot;calibration sheet&quot; that came with the printer to set extruder clearance, but a feeler gauge starts to show resistance around 0.55 mm to 0.60 mm.</p>
<p>Some relevant (?) speeds from the config panel:</p>
<ul>
<li>Print speed: 60 mm/s</li>
<li>Wall speed: 30 mm/s</li>
<li>Top/bottom speed (?): 30 mm/s</li>
<li>Initial layer speed: 20 mm/s</li>
</ul>
<p>I was able to minimize this by setting <strong>Enable Travel Prime</strong>, and I also reduced the initial gap to about 0.45 mm.</p>
<p>I will try to reduce the first layer speed from 20 mm/s to 15 mm/s and see if that also helps.</p>

CC BY-SA 4.0
2024-05-09T06:04:13.240Z
`resistance around 0.55 mm to 0.60 mm` that is a pretty big gap. Usually, this is paper thickness: *"the average thickness of an A4 paper is between 0.05 mm and 0.10 mm"*, so your initial distance might be too large, the image supports this (lines do not seem to be squished enough).
0scar
CC BY-SA 4.0
2024-05-09T19:36:14.397Z
I made some edits to my original post (but didn't clearly mark them as edits.  i.e. ElableTravelPrime and reducing height to 0.45.  Sounds like I have more room to play with.  texture on bottom layer already looks worlds better.  Thank you Oscar.
dennisc23
CC BY-SA 4.0
2024-05-09T20:04:04.420Z
You're welcome, just interesting to troubleshoot the problem! 0.45 initial gap is still very large, use plain A4 paper and try again. Some people use business cards, those are a bit thicker. Note that if you use Cura, you can install an add-on to modify the initial gap; it basically moves the whole G-code down. I've used that many times when I was to lazy to use the paper method... 
0scar
<pla><adhesion><build-surface>
First layer is thin with voids in the first corner of a rectangular object inside border
dennisc23
# First layer is thin with voids in the first corner of a rectangular object inside border

(Asked by: username_0 on 2024-05-08)

Qidi X-Max. PLA printing temp 200 °C build plate temp 60 °C.

I am using the back of the magnetic plate that came with the machine (the white front is a little worn out from ABS printing. the back is smooth and has worked pretty well. I am using Elmer's glue stick on the build plate.

The first corner where the inside of the bottom layer is getting filled with diagonal lines leaves a void. The opposite diagonal corner, where the head is making short traverses is OK.

[![Photo of a the first layer of a model with a void in the first corner just inside the outline passes.](https://i.sstatic.net/oTtWtigA.jpg "Photo of a the first layer of a model with a void in the first corner just inside the outline passes.")](https://i.sstatic.net/oTtWtigA.jpg "Photo of a the first layer of a model with a void in the first corner just inside the outline passes.")

Not sure where to start. I can't find the "calibration sheet" that came with the printer to set extruder clearance, but a feeler gauge starts to show resistance around 0.55 mm to 0.60 mm.

Some relevant (?) speeds from the config panel:

* Print speed: 60 mm/s
* Wall speed: 30 mm/s
* Top/bottom speed (?): 30 mm/s
* Initial layer speed: 20 mm/s

I was able to minimize this by setting **Enable Travel Prime**, and I also reduced the initial gap to about 0.45 mm.

I will try to reduce the first layer speed from 20 mm/s to 15 mm/s and see if that also helps.

**Tags:** pla, adhesion, build-surface
> **Comments:**
> **username_1**: `resistance around 0.55 mm to 0.60 mm` that is a pretty big gap. Usually, this is paper thickness: *"the average thickness of an A4 paper is between 0.05 mm and 0.10 mm"*, so your initial distance might be too large, the image supports this (lines do not seem to be squished enough).  
> **username_0**: I made some edits to my original post (but didn't clearly mark them as edits.  i.e. ElableTravelPrime and reducing height to 0.45.  Sounds like I have more room to play with.  texture on bottom layer already looks worlds better.  Thank you Oscar.  
> **username_1**: You're welcome, just interesting to troubleshoot the problem! 0.45 initial gap is still very large, use plain A4 paper and try again. Some people use business cards, those are a bit thicker. Note that if you use Cura, you can install an add-on to modify the initial gap; it basically moves the whole G-code down. I've used that many times when I was to lazy to use the paper method...   

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## 0 answers

