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Some of you may be aware that I have been trying to produce cheap magazines for the Sako Finnfire P94S. The first batch I sent out weren't perfect and although most recipients were grateful for the effort, not everyone was happy and I've been trying to improve the product, going as far as buying my own 3D printer so I could turn the prototypes around quicker. Currently on the 56th iteration and the magazines both fit and function. I've improved my spring production techniques too so they're far more consistent and close to the genuine article. One of the USPs of my design is that I can produce them in different colours. I bought some bright red material to make the latest variant and went out in the field with the only 2 I've made this morning to see how it would work. Fit and cycled fine so thought I'd prove how easy it would be to find if dropped in the grass (which isn't that long, about 4 inches). I shut my eyes and gently lobbed an unloaded magazine away thinking it would stick out like a sore thumb... from the title of this post I hope you can guess what the outcome was - couldn't find it. Took an hour or so of searching and still no result so have abandoned the quest! Throwing the other one a much shorter distance with my eyes open it was relatively easy to find but not quite the shining beacon I'd have hoped for! I've also bought some bright orange plastic which will help but I won't be deliberately throwing those away if I can help it. Fortunately the material cost isn't too high, even though there's quite a bit of work to do once they're out of the printer as the FDM process isn't always that neat. The pictured one has a clear base because that's what I had loaded in the printer at the time. I've been trying different materials too - here's a small selection of the ones I've made. The bright green is ABS which is quite nice because you can polish it with acetone but as you can see from the 3rd one along from the left, it's really prone to warping and I couldn't get any to print consistently (ABS needs quite high ambient temperatures and with the recent cold weather, it's amazing I've produced anything in my unheated workshop at all, frankly). If anyone wants to buy the prototypes to have a go at fettling them to work, I'm happy to send them on (charitable donation). Most of the issues were from the ramp angle on the follower being slightly too shallow so a few minutes with a bit of sandpaper and you could have a load of spare functioning magazines. The black one (carbon fibre filled PLA) on the far right was made on a friend's printer (same model) and although it's an older variant, it does actually work. There's probably double this amount lying around including some I had made on a professional machine
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- 3d printing
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I have a nearly new 5 shot mag for this great rifle. £35. Ring 07885606316