I've modified my Sculpfun S6 Pro and I wanted a better electronics enclosure. This enclosure uses a front plate to better access the board. The case accommodates the MKS V1.0 board that came standard with the laser.

Additionally, I added a 40mm fan to the front plate; 5v fan that plugs directly into the extra 5v connector on the board. The fan is mounted to push air directly onto the board and exhaust to the left.

This can probably fit the Sculpfun S9 (I think it uses the same electronics and mounting).

Hardware

Brass Inserts
40mm 5v fan
m3 bolts (nuts for fan if you don't want to use inserts)


Amazon Links
brass inserts => https://www.amazon.com/dp/B08Z89R4HP?psc=1&ref=ppx_yo2_dt_b_product_details
fan => https://www.amazon.com/dp/B07KRSJVP7?ref=ppx_yo2_dt_b_product_details&th=1
bolts => https://www.amazon.com/gp/product/B07H4MG7TC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

This was designed in FreeCAD.


Print Information:
Prusa i3 MK2S
0.2
PETG
No Raft/Supports
10% infill

Sculpfun S6 Pro Electronics Case with Fan

cover.stl

I created this air assist for my Sculpfun S6 Pro but it should fit the S9 laser.  It replaces the stock acrylic cylinder and fixes in place with the set screw(s).

I used a cheap aquarium air pump from Wal-Mart with both outputs streamed into out tube with the check valves (I got a cheap kit from Petsmart with additional connectors, check valves, etc).  This uses cheap tubing from Wal-Mart as well.

The tip is an inflation needle, the same thing used to inflate footballs, etc.  The tubing and needle are connected using shrink tubing.  The needle is fixed to the printed part using CA glue.

The angle is set so it should hit directly at the 20mm distance from the work piece and the laser.  You can customize the length and/or bend the needle, however you need it.

You should also angle the needle, tubing in whatever orientation works best for you setup.

I printed this in Yellow PETG (color is what I had loaded and a darker color might be better).  I have noticed improved cutting and engraving after I started using this.

Sculpfun S6(S9) Air Assist Cone

I printed this to add end stops to my Sculpfun S6 Pro; however, you can use this with any extruded aluminum profile.

The center section is cut out to accommodate the solder points on the switch pcb. I used these switches:
https://www.amazon.com/dp/B07PCN6T6F?psc=1&ref=ppx_yo2_dt_b_product_details

The holes take 2mm bolts with recessed nuts. I press fit the nuts in with pliers but you could heat set these as well.

I used Prusa Slicer and mirrored the object for the opposing end.

This uses one bolt fix it to the profile and there is an extruded cylinder to keep the part from shifting if knocked hard. Print with the cylinder facing upwards.

For the Sculpfun, I used the same bolt to fix the belt in place (see image).

I'm use my laser in my garage so I printed this in PET with the following settings:
20% infill
3 perimeters
support enforcer in the M4 bolt recess
*I used a brim but this depends on your printer, filament, etc

I made this in FreeCAD and have included the file so you can make whatever changes you want.

Sculpfun S6(S9) Endstop Bracket

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Sculpfun S6 Pro Electronics Case with Fan

Sculpfun S6(S9) Air Assist Cone

Sculpfun S6(S9) Endstop Bracket