CO2 Espresso Maker - Reddit Request

A model requested by a Reddit user. 

CAUTION:  THESE FILES ARE ONLY FOR REFERENCE. I AM NOT RESPONSIBLE IF YOU MAKE THIS DESIGN AND HURT YOURSELF WITH IT. ESPRESSO BREWS AROUND 9 BAR OF PRESSURE. THIS IS BASICALLY A GRENADE WITH EXTRA STEPS. IF YOU PRINT THIS DESIGN AND HURT YOURSELF, THEN THAT IS YOUR PROBLEM AND NOT MINE.

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Need help designing this simple DIY CO2 Powered ESPRESSO Maker 

Request

Howdy Experts!

I am looking for someone who can help me create this 3D model for an at-home CO2 Canister-powered espresso machine. 

The contraption itself is comprised of 2 parts that need to be 3D Printed. These 2 parts will serve to hold the pressure within the espresso basket, one being the base and the other being the cover. I only need a 3d model of the base and cover. The placement of the basket, 3 shoulder bolts, and red rubber seal are shown in the picture for reference. I also provided the dimensions of the basket so that it can be base and cover can fit tightly on the basket.

Specifications (Please refer to image):

For the BASE:

OUTER Diameter: 3 ½”

INNER Diameter: 59.6mm (must be able to fit the diameter of the Cafelat coffee basket.)

HEIGHT: ⅜”

3 threaded holes for this specific shoulder bolt.

Basic 4” handle smoothed edges OR rivets along the outside of diameter of the sides for grip

For the COVER:

DIAMETER: 3 ½”

OUTER Rim Height: ⅜”

Total Height: ¾”

3 keyhole-shaped holes to allow for bayonet mount mechanism to attach to the BASE. Use the dimensions of the same shoulder bolt.

1 threaded hole ⅜” deep centered for 1/8" Male NPT fitting. 1 (or to fit this thing into it)

Make a narrower nonthreaded hole after exceeding the ⅜” depth of ⅛” Male NPT to follow through to the other side.

⅜” height protrusion on the underside centered to fit into the rim of the Cafelat coffee basket. (around >58mm)

Include a flange at the tip to hold a rubber seal gasket to ensure a pressure lock in the coffee basket.

**BONUS:

For the COVER instead of 1 threaded hole of a ⅜” deep ⅛” Male NPT fitting, create 2 that are equally centered with about 1/2" of space between each threaded hole.

CONTEXT:

This project is not my idea at all. It was created by a guy named Eric Chang who originally thought of the idea and created a working prototype out of Plastic 3D Printing. You can find his journey in creating this product in his blog which I implore you to look at, as there are many interesting projects he’s done on there too. 

Unfortunately, the last time he posted anything about this project was in 2021, and he hasn't been responsive since. I’ve tried to reach out in many ways to see if I can get those STL files but all I have are the images I have provided from his blog documenting his journey on creating this project. I really thought the idea was cool, but as a health student, I know jack about anything CAD-related. I really wanted to continue this project, hopefully with some metal parts as an alternative through CNC Printing but I still need to figure that out too. I need help, please. If you would be willing to help me create this, please give me a quote! Thank you yall for reading!