MG 42 Cam section build 3
I am using a 1/2" backer bar and copper plate under the weld. Since
the bottom requires a lot of weld it needs to be done in sections to prevent
warping.
the bottom requires a lot of weld it needs to be done in sections to prevent
warping.
After welding and allowing the part to cool the bottom welds are
ground and inspected. If there are no voids or undercuts it is ready for
layout to cut all the slots and to square it off.
ground and inspected. If there are no voids or undercuts it is ready for
layout to cut all the slots and to square it off.
I blasted the parts with a 75% alox 25% glass bead mix to clean up
the parts and give a good surface to layout on. A coat of layout blue will
help make the lines more visible.
the parts and give a good surface to layout on. A coat of layout blue will
help make the lines more visible.
Her is the welded sections ready to layout, as you can see the bottom
is perfectly flat and there was no warping from the welding.
is perfectly flat and there was no warping from the welding.