<p><strong>I ended up buying a TronXY X3 and have had it several months.</strong></p>

<p><strong>I have seen several videos on the P802 and the X3 so I believe I can answer this question fairly.</strong></p>

<p><strong>Here is what the two printers look like</strong>  </p>

<p><strong>P802</strong> <a href="https://i.sstatic.net/5zO6um.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/5zO6um.jpg" alt="P802"></a></p>

<p><strong>X3</strong>   <a href="https://i.sstatic.net/tyW8bm.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/tyW8bm.jpg" alt="X3"></a></p>

<p><strong>Here is a comparison of the features</strong>
<a href="https://i.sstatic.net/mx6TU.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/mx6TU.jpg" alt="enter image description here"></a></p>

<p><strong>Here are my overall impressions:</strong></p>

<ul>
<li>Both printers are kits and have their assembly challenges</li>
<li>The X3 is often a little bit (10-20%) more expensive</li>
<li>The X3 frame is very rigid.  I have heard the the P802 is also rigid.</li>
<li>Acrylic is not as durable long-term (it cracks).  There are Acrylic parts on both printers; but, the Acrylic frame on the P802 would concern me more.</li>
<li>The bed on the X3 can wobble and the P802 doesn't look like it would.
(Note there are several available modifications to fix the X3 wobble)</li>
<li>The Boden extruder on the X3 makes the filament pull consistent; but, it can make the filament more difficult to feed.</li>
<li><p>The External Controller box on the X3 can make the printer more difficult to move and it can take up more desk space.</p>

<p><strong>The biggest negative (and likely a show stopper) on the P802 is the unprotected Melzi, Exposed AC connections, and no power switch.</strong></p></li>
</ul>

CC BY-SA 3.0
2017-07-18T07:18:22.963Z
2017-07-18T07:18:22.963Z
markshancock
<p>Auto-leveling is a great effort saver and a best thing in 3D printing in the last 10 years. While you can go without it, and many people do, it reduces the number of failed prints you will have at the beginning.<br>
Properly leveled bed allows you to print without using any adhesive in it, improves you performance with ABS and other stubborn things. Don't skip on auto-level, especially if you are a beginner. </p>

CC BY-SA 3.0
2017-03-16T17:17:51.913Z
I was about to say that the best thing in the past 10 years was the FDM patents expiring and cheap, open-source printers becoming available but that is already more than 10 years ago! Still, I'd say auto leveling is not as good as you make it out to be. It can be quite fiddly to get working correctly, leveling a printer manually is not that hard and saves your Z-axis rods from wear. Of course, if your printer is built very sloppily and falls out of calibration as soon as you look at it, auto-leveling will be much more useful, but with a solidly built printer you level once and forget about it.
Tom van der Zanden
CC BY-SA 3.0
2017-03-17T05:19:36.067Z
Thanks for the information.  As pointed out, this was really a side question and not an answer to the primary question.
markshancock
CC BY-SA 3.0
2017-03-16T15:54:31.063Z
2017-03-16T15:54:31.063Z
Barafu Albino
<p>I am wanting to buy a 3D printer to add to my shop.</p>

<p>I am an engineer and enjoy making/building things so the kit idea sounds fun and economical.</p>

<p>I see Tronxy has two different styles for their larger printers:</p>

<ul>
<li>P802 (reprap frame) style</li>
<li>X3 (metal frame) style.</li>
</ul>

<p>As far as I can see, both printers have the same basic resolution, accuracy, and material specs.</p>

<ol>
<li>What are the advantages/disadvantages/differences between the
P802 and X3? </li>
<li>How important is auto-leveling?</li>
</ol>

CC BY-SA 3.0
2017-03-16T15:36:27.990Z
I see somebody voted to close as "opinion-based". I'm not entirely sure I agree, because the question has an extremely limited scope (a direct comparison between two specific printers) which could be objectively answered by listing the advantages/disadvantages of each printer.
Tom van der Zanden
CC BY-SA 3.0
2017-03-16T17:26:22.350Z
That said, it might be better to state this question in a more generic way like "How does a metal frame printer compare to an acrylic frame one?". That way it doesn't depend on a particular model or make of printer.
Tom van der Zanden
CC BY-SA 3.0
2017-03-16T21:29:01.033Z
Though I would accept subjective options, I would prefer that the advantages/disadvantages/differences be objective.  Certainly there are some differences that are clearly objective (ex: Metal Frame vs Plastic frame) and I also believe they use different extruders.  What difference that makes might be subjective.
markshancock
CC BY-SA 3.0
2017-03-16T21:40:13.063Z
I agree the question about auto-leveling may be "opinion-based".  I could remove that; but, that is the only answer I have received so far.
markshancock
CC BY-SA 3.0
2017-03-16T22:23:06.597Z
You should also stick to one question per question. I.e. if you want to know about the difference between extruders, that's a question. Difference between auto leveling and not, another question, etc...
Tom van der Zanden
CC BY-SA 3.0
2017-03-17T05:23:09.210Z
I agree, I added the question about auto-leveling at the last minute because it is one item that can be different between the printers (though it can be on either or neither).  After rethinking the post, I would have removed it; but it had already been responded to and removing/changing it after that did not seem right.  Oh well, 20/20 hindsight.
markshancock
<print-quality><hardware><resolution><tronxy-x3><tronxy-p802>
Tronxy printers
markshancock
# Tronxy printers

(Asked by: username_0 on 2017-03-16)

I am wanting to buy a 3D printer to add to my shop.

I am an engineer and enjoy making/building things so the kit idea sounds fun and economical.

I see Tronxy has two different styles for their larger printers:

* P802 (reprap frame) style
* X3 (metal frame) style.

As far as I can see, both printers have the same basic resolution, accuracy, and material specs.

1. What are the advantages/disadvantages/differences between the
   P802 and X3?
2. How important is auto-leveling?

**Tags:** print-quality, hardware, resolution, tronxy-x3, tronxy-p802
> **Comments:**
> **username_1**: I see somebody voted to close as "opinion-based". I'm not entirely sure I agree, because the question has an extremely limited scope (a direct comparison between two specific printers) which could be objectively answered by listing the advantages/disadvantages of each printer.  
> **username_1**: That said, it might be better to state this question in a more generic way like "How does a metal frame printer compare to an acrylic frame one?". That way it doesn't depend on a particular model or make of printer.  
> **username_0**: Though I would accept subjective options, I would prefer that the advantages/disadvantages/differences be objective.  Certainly there are some differences that are clearly objective (ex: Metal Frame vs Plastic frame) and I also believe they use different extruders.  What difference that makes might be subjective.  
> **username_0**: I agree the question about auto-leveling may be "opinion-based".  I could remove that; but, that is the only answer I have received so far.  
> **username_1**: You should also stick to one question per question. I.e. if you want to know about the difference between extruders, that's a question. Difference between auto leveling and not, another question, etc...  
> **username_0**: I agree, I added the question about auto-leveling at the last minute because it is one item that can be different between the printers (though it can be on either or neither).  After rethinking the post, I would have removed it; but it had already been responded to and removing/changing it after that did not seem right.  Oh well, 20/20 hindsight.  

---

## 2 answers

### Answer by username_0 on 2017-07-18. Score: 2 | Accepted answer

**I ended up buying a TronXY X3 and have had it several months.**

**I have seen several videos on the P802 and the X3 so I believe I can answer this question fairly.**

**Here is what the two printers look like**

**P802** [![P802](https://i.sstatic.net/5zO6um.jpg)](https://i.sstatic.net/5zO6um.jpg)

**X3** [![X3](https://i.sstatic.net/tyW8bm.jpg)](https://i.sstatic.net/tyW8bm.jpg)

**Here is a comparison of the features**
[![enter image description here](https://i.sstatic.net/mx6TU.jpg)](https://i.sstatic.net/mx6TU.jpg)

**Here are my overall impressions:**

* Both printers are kits and have their assembly challenges
* The X3 is often a little bit (10-20%) more expensive
* The X3 frame is very rigid. I have heard the the P802 is also rigid.
* Acrylic is not as durable long-term (it cracks). There are Acrylic parts on both printers; but, the Acrylic frame on the P802 would concern me more.
* The bed on the X3 can wobble and the P802 doesn't look like it would.
  (Note there are several available modifications to fix the X3 wobble)
* The Boden extruder on the X3 makes the filament pull consistent; but, it can make the filament more difficult to feed.
* The External Controller box on the X3 can make the printer more difficult to move and it can take up more desk space.

  **The biggest negative (and likely a show stopper) on the P802 is the unprotected Melzi, Exposed AC connections, and no power switch.**


---

### Answer by username_2 on 2017-03-16. Score: 2

Auto-leveling is a great effort saver and a best thing in 3D printing in the last 10 years. While you can go without it, and many people do, it reduces the number of failed prints you will have at the beginning.  
Properly leveled bed allows you to print without using any adhesive in it, improves you performance with ABS and other stubborn things. Don't skip on auto-level, especially if you are a beginner.

> **Comments:**
> **username_1**: I was about to say that the best thing in the past 10 years was the FDM patents expiring and cheap, open-source printers becoming available but that is already more than 10 years ago! Still, I'd say auto leveling is not as good as you make it out to be. It can be quite fiddly to get working correctly, leveling a printer manually is not that hard and saves your Z-axis rods from wear. Of course, if your printer is built very sloppily and falls out of calibration as soon as you look at it, auto-leveling will be much more useful, but with a solidly built printer you level once and forget about it.  
> **username_0**: Thanks for the information.  As pointed out, this was really a side question and not an answer to the primary question.  

---

