Snapmaker J1 Print Cooling Fan Upgrade Kit & J1s Model

Hello J1 owners and J1 project followers,

Update 2023-07-06

Video tutorial:

Printing tips for PETG and ABS/ASA:

Update 2023-06-15
:mega: :mega: :mega: The Snapmaker J1 Print Cooling Fan Upgrade Kit and J1s Model are available on Snapmaker Store now!

Click the links below to enter the store. They will auto-switch to your local store according to your IP address.

Original Post

In order to further optimize your user experience with J1, we will release Snapmaker J1 Print Cooling Fan Upgrade Kit on June 15. The extra Print Cooling Fan can set a proper ambient temperature when printing at high speed on J1 and further cool your prints efficiently. Existing J1 owners can upgrade their printers based on their needs. Together with the Upgrade Kit, we will also launch the second iteration of J1 –– Snapmaker J1s on June 15, which comes with a Print Cooling Fan at the back panel as standard as well as pre-installed doors and panels. More info will be revealed on June 1! Stay tuned!

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Nice to see your support & information about updates and upgrades, Jade. The J1s seems to be a consequent improvement based on the feedback … and it would be nice, to get longer and better filament spool holders on the backside as an option, too? e.g. smooth running with ball-bearings

Is there any detail on the Cooling Fan Kit?

How do I order this kit?

@naPS @ad1959
The Snapmaker J1 Print Cooling Fan Upgrade Kit is available on Snapmaker Store now:
US Store:

EU Store:

Global Store:

Looks interesting! I have a few questions:

How wide is the air output?
Does it deliver airflow to the edges of the buildplate?
Is there any data from a cfd analyzis to look at?

How will users who had the J1 before June 15th, get the discount for the fan upgrade? I’ve not received an email yet, and I would like to wait to purchase this until I can save the $25. Thank you!

I’m kinda torn since I’ve already rigged up 2 fans blowing onto the build plate from the top-down which cools better than this. But on the other hand I can now keep the lid on.

I just installed the cooling fan upgrade. Easy job… However there are no details on how it is controlled? M106 code? Please let us know!
Thanks!

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Jepp … same question. Ordered in Feb 23

I’m not sure of the gcode specifics, but a quick test using manual fan speed control is that the cooling fan will match the highest speed of either of the extruder cooling fans.

How will users who had the J1 before June 15th, get the discount for the fan upgrade? I’ve not received an email yet, and I would like to wait to purchase this until I can save the $25. Thank you!

Same! Already purchased and installed… it’s working fantastic.

Right! This is the way I see it working. Thanks!

An additional thought is that it will keep the printer looking ‘factory’ rather than something rigged.
However I applaud your creativity.
I also took the opportunity while mine was down to drill a hole in the side panel to make belt adjustment easier, no need to remove the side panel or have another wrist installed (/s) to be able to reach it from the inside.
I had been using spacers and an acrylic top I had cut to be able to see inside from above and I still like that but without the spacers.

Ordered and received the J1 print cooling fan upgrade kit last week…works like a champ and cfm airflow is great!

Ordered and received the J1 print cooling fan upgrade kit last week…works like a champ and cfm airflow is great!

I’m working on a version that hangs on one of the doors now - I’m having issues with the ‘back’ of the print cooling, but not the ‘front’.

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@phdussud @naPS @USMC6333 Great to hear your feedback on the Print Cooling Fan Upgrade Kit!

I wanted to share some valuable tips for ABS/ASA and PETG printing, which I gathered after having a discussion with our software team and an experienced J1 owner, Dylan.

Firstly, as you may already know, the cooling fan is integrated into the machine design, so there isn’t a separate control for it. The print cooling fan operates in conjunction with the extruder fans. 🌀

Additionally, the threshold of the print cooling fan is actually higher than that of the extruder cooling fans. As shown in the graph below, the print cooling fan kicks into action only when the fan speed setting value exceeds its threshold. However, it also means that the actual total air volume is not linearly related to the fan speed value you set in the slicer. Therefore, fan speed adjustment will require some patience and experience to find the perfect balance for your PETG/ABS/ASA prints.

Now, let’s talk about ABS/ASA printing. By default, the cooling fan is usually disabled for these materials. However, in cases where the ABS/ASA filament is modified, you may need to enable the fan a bit to get some cooling. Since the bed temperature is set above 90 degrees, you can consider enabling the cooling fan at a low speed (within 25%). This won’t significantly affect material shrinkage. A low fan speed setting won’t cause warping. It’s recommended to keep the fan off for the first 3-4 layers and add a Brim when printing large-sized models. Note: This advice is based on experiences with ESUN ABS and Kexcelled ASA.

Moving on to PETG printing, it’s advisable to use the cooling fan in the range of 10%-40%. If you’re using PrusaSlicer or OrcaSlicer, keep an eye out for the “Cooling Overhang Threshold” setting. Enabling the print cooling fan for printing overhanging structures can enhance the cooling effect.

By the way, I want to mention that Dylan has organized a discussion and testing session with another Chinese J1 enthusiasts to fine-tune the configuration parameters for OrcaSlicer. So stay tuned! https://github.com/SoftFever/OrcaSlicer/pull/1421

Additionally, the official Luban software has released a new version V4.8.1 with optimized material parameter configurations. We highly recommend downloading the latest version for an enhanced printing experience. https://github.com/Snapmaker/Luban/releases/tag/v4.8.1

Feel free to share your own experiences in the comments below. Let’s keep the Snapmaker community buzzing with knowledge and constructive suggestions!

Make Something Wonderful!

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