ljsm, I looked at your questions again, sorry sir I don't think my answer was informative enough to assist you and I am indebted to you for your excellent instruction on adding pics. So, the shin guards were made after using a cardboard template to determine the size/shape. I cut and bent the corners and sides, then flattened it out on a piece of 1/16" black ABS plastic. (sorry, I don't do metric equivalents!) Cut out the shape and cut a 45 degree slit at all four corners. Make that a pie shaped wedge. Then, with a butane torch (not the see in the dark kind we call a flashlight, the heat it very hot kind!) Small burner used for cooking like browning the custard or creme Brulee, a big propane burner heats too wide an area. cigarette lighter will work in a pinch. Heat a straight line top to bottom along one side margin about 1" in. Pass the torch back and forth, alternating top and bottom sides. When the plastic softens, bend it along a straight line (use an unheated piece of plastic or a short ruler to keep it bending evenly, but when it starts to bend, pick up the ruler to avoid to crisp a bend...you don't want it super sharp.) Stop the bend at about 45 degrees, not 90. Do the same along all four sides except the top margin should be about 1 & 1/4" to 2" wide, with the uncertainty tied to the radius of the bend area itself. If your fingers aren't too thick, about two fingers wide is about right, including the bend radius. Hold it at about 45 degrees till it is cool enough to hold it's shape. I heated the pie shaped corner cuts and brought them to meet, then reinforced the back of the cuts with a wedge of ABS. If yo can get a can of ABS pipe cement at a plumbing supply or hardware store...that stuff is little more than dissolved ABS plastic in solvent. you can reinforce the corners with this on front and back. After an hour dry time, then sand the front of the corner joint...Bingo, the joint has disappeared. Now cut a trapezoidal shape of thicker ABS ,about 1/8" or as I did, use styrene. It glues fine with methylene chloride /styrene monomer glue or the plumbing cement. After rounding the edges it should fit nicely inside the bended area. You can see where I clamped it in the pic. I did also give it a slight curve as I perceived it needed, by heating on a kitchen pot first. I then drilled four holes,top and bottom to indicate the ends of the grooves in the plate's surface, cut slots between holes vertically, about 1/8'' wide for each. After you glue the face plate into place, fill the slot with modelling putty or Body filler...doesn't matter which and run a finger down the slot. That will leave a rounded contour to the groove. If you are well equipped you could do this whole step with the proper router bit. I just find this easier. Now you need some 1/8" half round styrene for the outside edge of the guards and the strap fastening areas. I just glue down the straight portions using thin model cement then using the torch ,I hit it enough to soften it for bending at a corner and glue it again, and so on. On my boots the straps are not quite in the right spot, but close enough. I obviously had pre-marked where the spots were for the existing straps...an advantage over screen used castings, since those wouldn't match most boots. I drilled a hole and glued a rivet (which doesn't do a thing except look SA) By the way, if you don't think you have the right glue for the half round trim...CA glue will work too. Last, prime, paint weather and epoxy the whole shebang to the face of the boot. I held it in place with foot long rubber bands until dry. These should be durable since the ABS is almost bullet proof. Heels may not be as accurate but they were made by cutting out a pattern of cardboard then trasferring that to 1/8" ABS and heating with a heat gun till it was limp in the center, bending it (use heavy gloves!) and hold in place around each boot heel, until cool. The other pieces are cut out of different thicknesses of ABS and glued in place on the base plate. Fill contours with whatever you use, Milliputt ,polyester body filler, modelling putty, sand prime and paint. I added 4 screws like the screen version, for each boot, two on each side. Couldn't find a lot of decent reference pics for the heel mod so ,for me, close enough....If I can't, probably neither can anyone else, so who cares?!! I hope this is complete enough to be helpful. Good luck.