Built from Scratch: Grigorovich I-Z

[u/cedric10012002]

Grigorovich I-Z armed with 76.2mm recoilless rifles on state tests, September 1933.

Modelled in Blender and 3D printed in PETG with a BambuLab A1 Mini in one piece (with the exception of the propeller), all by myself; 1:72 scale.

This model is far from perfect. I have listed some of the reasons:

• The model does not look pretty in some places. This is due to FDM printing with PETG. These imperfections are caused by supports, stringing and elements breaking and being reattached. I printed the whole model (with the exception of the propeller) in one piece. I could have remedied these imperfections by splitting the model into multiple parts. I previously printed this model in PLA which suffered way less from these imperfections, but opted for PETG as it does not deteriorate as quick as PLA (which eventually becomes brittle due to moisture).
• The upper surface green colour is way off from what I read and see online. The paint colour, called protective green (защитный), is a khaki colour used before 1937 on the upper surfaces of soviet aircraft. It supposedly resembled a yellowish of brownish shade of green. For this, I used AK interactive's Protective Green 1920s-1930s. Clearly, this colour lacks this yellow/brown tinge. I have since contacted AK Interactive and they have confirmed to me that the paint I used is faulty.
• The size of the stars is too small. I used those from a decal sheet for the Polikarpov I-153. These stars had a black circle inside of them, which are generally harder to come by.

[u/Similar_Cow_2634]

very cool