i must figure out how to make the plates ontop because they have a pattern in them (don´t know what you call them in english) will try to find a file and press the plastic against it and warm it up... see if it works.
What you need are known as Tread Plates. There are several photo-etched brass tread plates you can buy but you might try making some by gluing screening to the plastic first. Pressing a file never worked for me.
The pattern on this example is of the alternating five parallel bars. This type is common in Europe and has been seen on the interior of Munster's Panzer IV.
The five bars measure .055 inch long and .090 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bars and only .006 inch thick on the flats.
The pattern on this example is of the 30/60 degree raised diamonds. This type is common in the US and has been seen on many vehicles including the Panzer I and II.
The lines measure .01 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bar and only .006 inch thick on the flats.
The pattern on this example is of the alternating T bars. This type is common in the US and has been seen on many vehicles.
The T bars measure .02 inch long and .01 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bar and only .006 inch thick on the flats.
The pattern on this example is of the raised bars forming squares. This type is uncommon and I have not seen any vehicles with this pattern yet.
The bars measure .01 inch long and .005 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bar and only .006 inch thick on the flats.
The pattern on this example is of the raised dots in alternating rows. This type is common and I have seen them on many vehicles such as the Panzer III series and variants.
The dots measure .005 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bar and only .006 inch thick on the flats.
This corresponds to dots 1/8 inch wide and 1/8th inch tall above the work surface in real life. However, it should be noted that German antiskid plates were stamped and a reverse imprint would be seen from below.
The pattern on this example is of the fine herringbone pattern. This type is common and I have seen them on many US vehicles. Unlike the German treadplate which are stamped, these are pressed with not reverse pattern on the opposite side.
The T bars measure .01 inch long and .005 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bar and only .006 inch thick on the flats.
The pattern on this example is of the large herringbone patter. This type is common and I have seen them on many US vehicles as well as German. It should be noted that US treadplate, unlike the German treadplate which are stamped, are pressed with no reverse pattern on the opposite side. So if using it on a German vehicle, a reverse imprint would be seen from below.
The bars measure .03 inch long and .01 inch wide. The fret is 5.625 inches long by 2.46 inches wide giving a total of 13 3/4 square inches of usable area. The sheet is .01 inch thick measured over the bar and only .006 inch thick on the flats.
The above photos and blurbs are from my reviews of the Lion Roar Anti-Skid Plate Sets I-VII.
I hope this helps,