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BLTouch doing absolutely nothing on my Ender3 v2


ComeGetYourPuddn
(@comegetyourpuddn)
Nozzle Registered
Joined: 3 weeks ago
Posts: 2
Topic starter  

Okay so I've spent literally hours and hours to get this thing to work.. I bought this BLTouch from Amazon. It's the one from creality, and it's meant for the Ender 3 v2. My board is the 4.2.2 version ofc and yeahh.. I've used so many different softwares to get it to work but it just doesn't.  I can get it to probe and show me the graphs just fine. Yet once I actually print it doesn't try to get over any small bumps or pits along the way or anything. I can't get my bed perfectly level since it has a small warp (cause one of the sides to be slightly higher, but not by much). 

 

I've entered the M420 S1 Z1 in the cura Start G-Code like everyone.. Yet it doesn't do anything. It's like the BLTouch is there to poke my glass bed and then scratch parts of it lol..

 

I'm about to just give in, so if anyone out there can help me solve this problem I would truly appreciate it. I'm a bit new, so do understand if I'm unsure what you're talking about  :,)) 


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kevin
(@kevin)
Hot Bed Admin
Joined: 2 months ago
Posts: 354
 

@comegetyourpuddn So, you failed the first layer stick on the hotbed, right? Have you set the Z-offset properly? As you did not mention this at all. 🤣 


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zsteele00
(@zsteele00)
Nozzle Registered
Joined: 3 weeks ago
Posts: 2
 

@comegetyourpuddn I had the same issues and still am but, follow this youtube link this guy is very knowledgeable and has some great tips in order to get the most out of you BL Touch! Good Luck!

-Zak


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zsteele00
(@zsteele00)
Nozzle Registered
Joined: 3 weeks ago
Posts: 2
 

@comegetyourpuddn I had the same issues and still am but, follow this youtube link this guy is very knowledgeable and has some great tips in order to get the most out of you BL Touch! Good Luck!

-Zak


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gmergulhao
(@gmergulhao)
Heating Block Registered
Joined: 4 months ago
Posts: 15
 

Been there as well. You forgot the Z-Offset (which I find a pain in the ass)


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ComeGetYourPuddn
(@comegetyourpuddn)
Nozzle Registered
Joined: 3 weeks ago
Posts: 2
Topic starter  

@gmergulhao I have my z-offset set :0 I switched my firmware to Jyers 1.3.0 and so far so good. 

 

The main issue now is the nozzle likes to grind the print, and the BLTouch 3.1 likes to fail mid probe so it takes me an hour just to probe the bed.. It's correctly installed. 


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Wintermute
(@wintermute)
Screw Registered
Joined: 2 weeks ago
Posts: 1
 

I was getting that issue where it would fail to complete a full probe set on most attempts, fixed it by wedging some folded cardstock in the bltouch socket on the mainboard to stabilize the loose connection at the pins. Now, it works flawlessly and I don't have to watch it anxiously every time.


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