Quote:
Originally Posted by Crob42
The delrin comes in .75 x 1.0 part number 8662K52, you pick the length. Had to sand the sealing side to take out the grooves.
The prinsu spacers are 1.0 x .75 OD X .50 ID.
Standard 1/8 o rings ID of .296 fit great on the .308 bolt shank from prinsu, but are too thick (0.574) for the .5 ID of the prinsu spacer, so one needs a slightly larger bore diameter. Hence the 35/64 drill at .547 dia. This is a good amount of o ring compression but not too much that it can’t be assembled. One would be fine but you get a pack of 50 so double up.
Used a 1/16 epdm sheet for the bottom. PN 8990K71
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If I understand correctly, you put the prinsu spacers inside the delrin block? I'm thinking of taking your idea and applying to my UpTopOverland rack when I get it, looks clean!