Jet Engine 40% scale – Động cơ phản lực tỉ lệ 40% (in resin)

This is a remix of the original model by CATIAV5FTW, scaled down to 40% so that I could print it in resin without going broke. 

Printing

I printed the model in resin, most of the parts like stators and fans can be printed flat on the bed assuming you have good zero-leveling and eliminated the elephant's foot effect, as well as layer crushing. My prints came out well and everything fits fine.

NOTE: the Mixer part came out extremely thin, I wasn't able to add thickness to it, so be aware. In my case it was nearly paper-like.

I printed using Elegoo Saturn 3 Ultra printer and  Anycubic Tough Black resin.

Assembly parts

I've modified the bearing slots so that the following bearings would fit:

• 7x14x5 mm 687 ball bearings - 2 pcs
• 8x19x6 mm 698 ball bearings - 2 pcs

I've also increased all of the screw holes and nuts slots so that the following would fit:

• M1.6x4mm screws- 100 pcs
• M1.6 nuts - 100 pcs

NOTE: You can get screws with any kind of head you want, but the head must be lower than 1.4mm in thickness, mine are 1.1mm. If you are going to use HEX-head screws, be aware that the HEX key size is not commonly found in the screwdriver sets.

I also recommend removing the plastic casing on the ball bearings and change the lubricant, it makes them spin freely.

Assembly

Well, its doable… but very tricky. You can find instructions online via original model, the assembly process hasn't been modified. Depending on the print orientation the screw holes might be too small (e.g. printed on the plate), but the screws just eat through if force is applied in case of Anycubic tough resin (this might be different for other resins!), and the screws sit tight without the nuts.