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Step 4The main gun form
The main body of the weapon can be created by using 4 simple shapes of foam. Taking a sharp stanley knife to the foam (the extendable blade is useful to eventually cut through all 52mm of foam), cut along a straight edge in nice even strokes. Don't cut too deeply, just let the knife do the work, each time cutting a little deeper than before. This should give you nice flat surfaces to work with
The barrel is 90mm high and 400mm long. One end of the barrel is cut with a notch to make room for the injector. The main diagonal is 90mm high by 280mm long, cut both ends at a 45 degree angle. The main part of the stock is 52mm high (to make it a square section) and 400mm long, cut the front of the stock at a 45 degree angle. Finally cut a piece of foam 40mm wide by 100mm long. This will form the L shaped part of the stock (different to photos). Use Hot glue to stick the pieces together, make sure each join has a good covering of glue and is pressed well together. Run the hot glue around the edge of the join to fill any gaps and to make the seam stronger. (You don't want the gun to break along these joins)
Cut a small 30mm long section of 32mm wide plastic pipe is inserted into the front of the barrel. Press the pipe into the foam on the font of the barrel, then use a scalpel to cut a circle where the pipe will site. Now when you come to glue the pipe in place it will slide into the foam and hold much better. Carve the foam around the piper to provide a rounded shape for the barrel.
Finally add a bracket to hold the cascade tower, this should be 100mm along the top, 90mm high and 40mm wide. Glue this in place with more hot glue, reinforcing the seams as you go.
As you can see from my images I did this stage slightly differently. I added some details into the stock as I was cutting it but if I were to do this again I would be do it this way and then slowly build up the stock with more pieces as described. I also added the injector bracket but again this is probably better done at a later stage so it becomes easier to work in that gap.
The barrel is 90mm high and 400mm long. One end of the barrel is cut with a notch to make room for the injector. The main diagonal is 90mm high by 280mm long, cut both ends at a 45 degree angle. The main part of the stock is 52mm high (to make it a square section) and 400mm long, cut the front of the stock at a 45 degree angle. Finally cut a piece of foam 40mm wide by 100mm long. This will form the L shaped part of the stock (different to photos). Use Hot glue to stick the pieces together, make sure each join has a good covering of glue and is pressed well together. Run the hot glue around the edge of the join to fill any gaps and to make the seam stronger. (You don't want the gun to break along these joins)
Cut a small 30mm long section of 32mm wide plastic pipe is inserted into the front of the barrel. Press the pipe into the foam on the font of the barrel, then use a scalpel to cut a circle where the pipe will site. Now when you come to glue the pipe in place it will slide into the foam and hold much better. Carve the foam around the piper to provide a rounded shape for the barrel.
Finally add a bracket to hold the cascade tower, this should be 100mm along the top, 90mm high and 40mm wide. Glue this in place with more hot glue, reinforcing the seams as you go.
As you can see from my images I did this stage slightly differently. I added some details into the stock as I was cutting it but if I were to do this again I would be do it this way and then slowly build up the stock with more pieces as described. I also added the injector bracket but again this is probably better done at a later stage so it becomes easier to work in that gap.
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