Cannon from Castle of Buedingen

thingiverse

Fifty years ago, I caught sight of a majestic cannon at the castle of Buedingen in Germany. Taking several photographs, I decided to create a scale model using steel and wood, with intricately designed metal fittings for added ornamentation. Later, I revisited the cannon for further details, but unfortunately, it had vanished. Consequently, I was unable to determine its exact type or size. Following my successful upload of the naval cannon on Thingiverse (https://www.thingiverse.com/thing:338952), I sought to replicate this model myself, but struggled with creating printable wheels. After extensive research, I discovered that the only viable solution was to mimic the real-world method of crafting them. However, the spokes remained a challenge until I decided to split them in two. To achieve maximum realism, I divided the felloe into six segments. For those who prefer to print the wheels as one piece, the option exists to use the split hub. This allows you to first embed all spokes within the felloe and then push together the two half-hubs. If you prefer a single-piece wheel design, you can opt for the Remix uploaded by "Intrudermax" on Thingiverse (https://www.thingiverse.com/thing:2812424). To facilitate printing of all parts, I had to make some modifications. To complete this project, you will need to obtain the following components: - A 3 mm x 190mm brass shaft for the axle - Some nails and needles for fastening the fittings - Three M3 threaded rods (56mm long) with nuts - One rod with a diameter of 3mm and a length of 49mm Recommended print settings for Slic3r include: For spiral vase mode, use one perimeter, width =0.4mm layer height =0.3mm, and no infill. For the axle band, use two perimeters, width =0.4mm, layer height =0.3mm, and no infill. For the hub band small, use three perimeters, width =0.4mm, layer height =0.15mm, with 2 solid bottom layers, 3 solid top layers, and 30% infill. For the tire solid, use two perimeters, width =0.4mm, layer height =0.3mm, and no infill. For the spokes, use three perimeters, width =0.4mm, layer height =0.2mm, with 2 solid bottom layers, 3 solid top layers, and 25% infill. For the hub, use two perimeters, width =0.4mm, layer height =0.2mm, with 2 solid bottom layers, 3 solid top layers, and no infill needed. For the felloe segment, use one perimeter, width =0.38mm, layer height =0.2mm, with no solid layer required and 20% infill. For the spacer hub, use two perimeters, width =0.5mm, layer height =0.3mm, with 2 solid bottom layers, 4 solid top layers, and 15% infill. For the cheek, crossbar back, crossbar middle, and crossbar front, use one perimeter, width =0.4mm, layer height =0.2mm, with no solid layer needed and no infill required. For the fitting front and fitting back, use one perimeter, width =0.5mm, layer height =0.2mm, with no solid layer needed and no infill required. For the top clamp, use two perimeters, width =0.38mm, layer height =0.2mm, with 2 solid bottom layers, 2 solid top layers, and no infill needed. For the plates all, use one perimeter, width =0.35mm, layer height =0.1mm, with 2 solid bottom layers, 2 solid top layers, and 30% infill. For the eyelet, use one perimeter, width =0.5mm, layer height =0.2mm, with no solid layer needed and no infill required. There are two parts that I could only slice correctly using Cura: the tire brim and latch brim, which require a shell thickness of 0.4mm, layer height of 0.2 mm, and 100% infill.