Slicer Prepare Time, Custom Time

[McNeill]

I’ve owned the X1C and single AMS for a year or so. I tend to print tooling / fixtures / jigs and small problem solvers for the most part. My background is not 3D printing but machining and mechanical design. My complete lack of previous 3D printing experience is why I selected this printer as I was interested in a tool and in the printed product rather than the printer being the hobby. Which is to say I don’t know what I don’t know.

I do lots of test prints. Sections of something to see if the design is printable or will fit something the way I want. Makes way more sense to chop something up into 5 or 10 minute print chunks to find the problems rather than printing 4 or 6 hours of something that turns out was unusable 5 minutes into printing. And therein lies my annoyance.

Frequently, the “prep time” is a significant chunk of the total time. Every single print seems to go through bed leveling and harmonic testing despite “Use AMS” being the only option selected. Obviously the nozzle and bed need to get up to speed but like, I just took something out of the printer do we really need to run the entire 7 minute cycle again?

Is there no “quick print” method?

[JayZay]

Hi McNeill,

Welcome.

@McNeill

Is there no “quick print” method?

You can edit the printer start g-code, i.e., change the printer’s actions during the startup.
I cannot provide you with a solution, but a list of many from which you can find the one that fits your needs. There are some risks, which I believe to be minimal, but in all cases, the responsibility is on your side. Some advice:

• do not blind trust in a solution; if it works or not is up to you;
• As they are unofficial, it is normal for old ones not to work or have limitations. This can also happen to you with time, as newer versions of firmware are released, but usually, you can easily overcome with simple changes;
• at the time of the first test, whether experienced or not, stay near the printer and look at every detail during the startup, as you can interrupt in case of any problem and understand where and why it failed.
  Some threads where you can find custom start g-codes and users’ experiences (randomly ordered):

Request: Faster print start

I love the printer, but I hate the long startup sequence. I dont want to use any unofficial start gcode. Please try to improve the startup sequence time or atleast give us a second “quick print” option where it only does the absolute necessary steps in order to not damage anything. If I print a small objects that takes 8 minutes I dont want to wait 7minutes. If turning off bed leveling and flow calibration, it still takes a few minutes until it actually starts printing and its too long for my…

Modified Start and End gcode for X1 and X1C

https://www.printables.com/model/322000-bambu-lab-modified-start-and-end-gcode My customized start and end gcode for Bambu Lab printers. Usable for X1, X1C with or without AMS. In addition to cleaning up the stock gcode from BL, I have added some of my changes. For more description, please visit the Printables link. Do note that these are my codes that I use and it works for me on my X1CC. I have been using and updating them and decided to share them with the community. As with all the stuff …

Modified Start and End gcode for X1 and X1C

https://www.printables.com/model/322000-bambu-lab-modified-start-and-end-gcode My customized start and end gcode for Bambu Lab printers. Usable for X1, X1C with or without AMS. In addition to cleaning up the stock gcode from BL, I have added some of my changes. For more description, please visit the Printables link. Do note that these are my codes that I use and it works for me on my X1CC. I have been using and updating them and decided to share them with the community. As with all the stuff …

Question about Start G Code

Some of my PETG filament ooze more than others. And sometimes it ruins the first layer. With the start g-code, it prints two purge lines. After purge line 1, the nozzle moves to the middle of purge line 1 and make a pause - it ooze. Then he moves to purge line 2 and leaves strings over the whole print bed. How and where can I change the start g code, that this “pause” is not on purge line 1? he should do that at the start of line 2 and I would like to do a second nozzle wipe before line 2 star…

Reducing startup time

For larger/longer prints, the Bambu X1 offers some speed advantages, but for smaller prints, the startup procedures reduce this benefit. Do any of you disable some of the initial phases, like bed leveling or extruder calibration?

Pre-printing preparation phase

Hello, I got a question regarding all the preparation things the X1C is doing before actually starting the print. What I mean is: Actually I’m printing much ASA/ABS with 260°C, with the textured PEI sheet, which is working quite good if using bed with ~105°C. When I start a print job, it’s doing many things, heating up nozzle and heatbed, doing homing, etc. There are my questions starting: It starts heating up the nozzle and heatbed at the same time. The nozzle is quite fast at 260°C, the…

How to print just the part, nothing else

Hi, I wounder how can I force X1 Carbon to print only the part and nothing else. I often want to print small parts one after the other with the same filament. So I would like to force printer to only print the part and skip everything else. initial purge after loading filament this lines at the perimeter of the build plate. How do I do that? Cris.

Bambu Lab X1 Specific G-Code

Right now there’s no documentation from Bambu around what standard and non-standard G-code commands can be used on the X1 series of printers. As for the standard commands, this Marlin cross reference is great but please note that Bambu doesn’t implement all of it, and some things that are implemented behave a bit different than stated there. This will be a constantly evolving thread to document these until Bambu publishes some official documentation. Some things are certain, some things may be…

Does the x1c always have to calibrate itself before each print?

I’ve seen custom g-code scripts available on Printables which have new start and end code designed to cut down the time taken to start a print. If you are wanting to modify the g-code yourself, it’s found in the printer model menu (above plate type) under the “machine g-code” heading. [1687866382417761438829897168482]

In case of doubts, feel free to ask.

[McNeill]

Thank you @JayZay ! I had previously stumbled across one of those threads but couldn’t for the life of me find it again and haven’t seen the rest at all. My search fu is usually reasonable but failed me entirely today.

Is it possible to switch back and forth via a profile or something similar? Like running a stock filament preset vs one that’s been tweaked?

(I promise not to run internet-sourced G-code without at least parsing it to see what it’s supposed to do, then proving it out)

[JayZay]

@McNeill

Is it possible to switch back and forth via a profile or something similar? Like running a stock filament preset vs one that’s been tweaked?

Yes. Just go to the printer settings (1), edit the machine g-code (2) and save the custom printer preset with a new name (3).

@McNeill

I promise not to run internet-sourced G-code without at least parsing it to see what it’s supposed to do, then proving it out

I am sorry if it looks like a daddy warning. I always feel comfortable advising to be cautious with non-official solutions.

[McNeill]

That was not snark I promise, I appreciate the help immensely. It should be common sense not to run random code found on the internet on your computer or anywhere else if you don’t know what it does but people can be lazy or impatient and get caught out all the same. The warning is entirely appropriate.