WK180 Design Improvement Mod

How much “give” would the TPU98 give you? I’m not familiar with it at all, if it sounds like a dumb question! It would be nice to be held in with the op rods and not using glue as well. If you try it out make sure you let us know how it worked out.
 
3D printing allows the wall thickness and internal infill dimensions to be tweaked, so it is not all about the material itself. Solid TPU98 is fairly stiff and quite strong. I built a buffer for an SKS out of it. Seems to work fine.
 
Ok, that makes perfect sense the way you explained it, thanks for that. How long do you expect the 3D printed buffer to last? So far the one I made from the 9mm buffer material looks really good, no deterioration at all. Granted it only has maybe 250 rounds on it, so not really a great benchmark!
 
SRV6513 said:
Ok, that makes perfect sense the way you explained it, thanks for that. How long do you expect the 3D printed buffer to last? So far the one I made from the 9mm buffer material looks really good, no deterioration at all. Granted it only has maybe 250 rounds on it, so not really a great benchmark!
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Not sure how long TPU buffer would last, but they cost literally nothing to make. I'd guesstimate an hour of print time and maybe $0.20 worth of material. I'd print up 3 or 4 and just replace them when necessary.


Edit: I did up the CAD model and I'll maybe try and print one later today.
 
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That is cheap, and I thought my idea was economical! Let us know how it works out once you get one printed up and in use. I would like to have something where adhesive of some type wasn’t necessary
 
You just take the guts out of the factory block and replace with the adjustable system. There are 2 allen keys, one to partially block off gas and the other to lock the first in place. Pretty simple system.
Not cheap but it's the best way to help keep the gun from beating itself to death as they're pretty over-gassed.
 
Unholysavage said:
You just take the guts out of the factory block and replace with the adjustable system. There are 2 allen keys, one to partially block off gas and the other to lock the first in place. Pretty simple system.
Not cheap but it's the best way to help keep the gun from beating itself to death as they're pretty over-gassed.
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The wk definitely seems over gassed.
 
I tried the gas regulator from tna.
Even with the holes completely blocked, the bolt still cycles and locks back on an empty mag. Ejection is still around 1to 2 o'clock. The best results I had was when the piston side of the regulator was blocked and the port was open to the front meaning that gas was venting forward. The bolt still cycled and ejection changed to around 4 o'clock.
 
thatmikeguy said:
I tried the gas regulator from tna.
Even with the holes completely blocked, the bolt still cycles and locks back on an empty mag. Ejection is still around 1to 2 o'clock. The best results I had was when the piston side of the regulator was blocked and the port was open to the front meaning that gas was venting forward. The bolt still cycled and ejection changed to around 4 o'clock.
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How do you tell if it's over gassed?

Added some pads and will see if it reduces the impact and cycles better.
 
The extractor would rip off the rim of the case and the case would stay in the chamber. A light tap with a cleaning rod would remove the case. I'm quite certain that the gas system is too short for the 18.5 inch barrel.
 
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