The file '106mm M40A1 Recoilless Rifle (15mm / 20mm / 28mm) 3D Printer Model' is (stl) file type, size is 6.0MB.
This is the US 106mm Recoilless gun made by the USA and used around the world from the 60's to the current day. It was widely used by US forces in Vietnam
This is a free model supporting my Kickstarter for Vietnam vehicles. You can sign up for the newsletter at https://www.kickstarter.com/projects/bm3d/3d-printable-us-vehicles-of-the-vietnam-war-for-wargames/description
The STL is scaled at 1/100th (15mm) but the model is designed to be detailed enough to produce a very nice model at 1/56th (28mm).
The pre-supported models are correctly scaled per their file description. The unsupported file is at 1/00th and will need to be rescaled. To print at other than 1/100th you will need to scale the model in your slicer
1/72nd (20mm): 139%
1/56th (28mm): 179%
All the models in the Kickstarter will come pre-scaled and pre-supported too
The prints were done by Brad Sanders on a Photon S
106mm_Ammo_box_wood.stl | 163.9KB | |
106mm_M40_28mm.stl | 3.4MB | |
15_M40_Supported.stl | 4.2MB | |
20_M40_Supported.stl | 4.2MB | |
28_M40_Supported.stl | 4.3MB |