3D Benchy first print failed  

RE: 3D Benchy first print failed

I would guess that you were the Z offset is off and the hotend pulled the print from the plate.  Can you post an image of your Z calibration of the bottom of the Benchie?

Also, did you wash your plate?

RE: 3D Benchy first print failed

@technical-ted

I print benchies on my smooth all the time.  

RE: 3D Benchy first print failed

@cwbullet

Yep, that's what I said... he'll want the smooth sheet for this one. That's the only way I could get one past the point where he is having trouble. They popped off the textured sheet every time. The textured sheet didn't give enough adhesion. 

Ted

RE: 3D Benchy first print failed

@technical-ted

I am sorry.  I typed that on my stationary bike.  I must have been hypoxic.  I use my textured all the time to print benchies.  I have used both, but for the last year, just the textured.  I get better adhesion with it.  

RE: 3D Benchy first print failed

@cwbullet

What's your secret? I used a brand new sheet, never touched it. Cleaned it with 90% multiple times.... always popped off at the top of the arch.

Ted

RE: 3D Benchy first print failed

Anecdotal evidence would suggest that they get better as they wear in.  Sometimes 🙂 

I've never had much success with mine either, then again I also haven't spent any time trying to wear it in as I just want to print.

RE: 3D Benchy first print failed

@technical-ted

My secret:  Not much of a secret.  I bought my MK3 printer 3 years ago.  I washed the plate before I used it after reading a post on reddit.  I used Dish Soap and a nonscratch sponge.   It still did not stick well.  My problem looking back is that I thought I had my Z dialed in but I did not.  It takes experience to get it dialed in.  I switched to the smooth for about 6 months.  

One day I switch back.  I gave it a good scrubbing, dialed it in, and it just worked.  I did dial the filament in until it started to wave (too low) and then backed off just a little.  

@Neophyl is right.  It does "season" with time.  My textured sheet is almost too adhesive now.   Printed require a little effort to remove.  I use hair spray and glue stick as releasing agents with some filaments like PC blend, ABS, and some PETGs.  Hair spray might give you that added boost if you have a difficult to remove filament (when cold) or one that does not stick as well as you want on a hot bed.  I use a can of Aquanet every 2-3 months.   

RE: 3D Benchy first print failed

That's funny.  I also just tried printing my first Benchy on my new printer, and had it fail in the exact same location.  I even pulled it out of the trash to confirm.  I agree with the assessment that it's your Z offset.  Looking at the bottom of mine, and comparing it to the ones I printed on my old printer, mine definitely could be pressed down into the plate more.  Adjust the offset a bit more, and I'm guessing that will solve the problem.

RE: 3D Benchy first print failed

Just realised I have not printed a benchy yet on my MK3.

Thats just not good enough, have just slapped myself with a gauntlet and promptly accepted the challenge.

🤔

RE: 3D Benchy first print failed

Thanks everyone.  The problem appears to have been that I was using the textured sheet.  The smooth sheet I ordered just arrived this morning, and I printed another 3DBenchy with no issues.