This is just a very simple construction. Never will make it real, so it's theoretical, but it should be stable though. So this is meant to be a howto attach a switch-blade under your forearm, nothin more and nothin less.
For demonstration i used pictures made with paint brush.
Discussions bout this project are explicitely desired to elimininate any problems bout this draft.
Step 1: Tools/Materials
- small pieces of leather
- sum metal plate (0,5mm/0.02" thickness)
- 4 blind rivets
- two or three clasps
- sum piece of rubber foam
- Cutter (for cuttin leather)
- Hole Punch
- metal shears
- sum pliers for the blind rivets
- sum normal pliers/mallet (to bend the metal)
- sum screw clamps/bench vice (to fasten the metal for bending)
- scissors to cut the foam into shape
Step 2: Measuring Outer Diameter
For constructing such a holster, i would start measuring around the knife, say the outer diameter of the thing...
Step 3: Rubber Foam/cushion
Maybe cut it even a lil bit lesser than the diameter to make the cushion tighter.
For makin it easier to insert the knife in the end, thin out one of the "diameter"-sides of the foam.
Now maybe would be useful to wrap the foam around the knife and mark the point where the switch for the blade is located. Cut a hole there into the foam to reach it.
Step 4: Cuttin the Metal Case
For cuttin the metal split one of the broadsides into two halves and extend them to both sides (see pict - that should be the case's plate).
Step 5: Holes
Use a bigger drill to geht rid off the flashs (but be careful to not enlarge the holes).
If you have cut a hole for the knife's mecanism sumwhere in the foam, now do the same with the meal (mark a ring or a rectangle, drill the lines with many small holes close to each other, then it should be no prob to cut/snip it out))
Step 6: Bending the Plate
Step 7: Base
Step 8: Leather
Instead of the two laces you could also use a big-sized rectangle, put eyelets in the long sides for a cording/leather ribbon, maybe that makes things even tighter, but it also needs more time to pull it on.
Now add the case and put the case, the base-plate and the laces together with the rivets.
All you need to do now is to make sum more tiny holes into the laces, bend the whole thing round your forearm and fix it tightely with the clasps.