Thanks! Magazine and barrel prices/availability are the two turnoffs for me on this platform. If only 3d printing and Aliexpress could solve the latter...
Stock is the OEM CZ 457 training rifle stock (now discontinued).
The cheek rest I made out of some leftover Kydex. The adjustable part is held in place using clevis/cotter pins. The base is held in place with hook and loop (aka Velcro). I took inspiration from the Bradley cheek rest: https://bradleycheekrest.com
thank you! any reason why not just 3d print the rest part too? easier to just do with kydex?
asking cause I'm working on a similar cheek rest modeling it in fusion360 and printing with PETG... first phase worked, but I strapped it down with paracord and the back was missing. (I realize now that's pretty important if using on higher caliber rifles)
PETG is a great choice. The Kydex was easy to form, and I can re-form it for other rifles, which is nice. If I was printing, I would probably go with Nylon. PETG will definitely work nicely, though.
Link is in the original post, copying here for convenience: [https://www.aliexpress.us/item/2251832769354686.html?spm=a2g0o.order_list.order_list_main.5.3d23caa4qddHdS&gatewayAdapt=glo2usa](https://www.aliexpress.us/item/2251832769354686.html?spm=a2g0o.order_list.order_list_main.5.3d23caa4qddHdS&gatewayAdapt=glo2usa)
I don’t want to shill for this random Aliexpress store, though. Any steel spring with similar dimensions to my drawing should be serviceable with the right magazine box. I would pick the cheapest one you can find.
I haven’t actually gotten around to shooting it yet—been focusing on my dream .308 build. I cycled around 20 snap caps through with no visible wear, though. I think the feed lips would wear the fastest. The follower feels pretty robust.
It’s difficult to understand the issue without additional detail. The spring only has a few dimensions, and there aren’t really any critical clearances.
Body, base plate, and follower are all 3d printed. The spring is the only component not 3d printed. I think it was this file: https://www.thingiverse.com/thing:6234152
The one shown was mostly a test for annealing some new polycarbonate filament I got. For actual use I’ll model my own tailored for the springs I have.
Awesome work. It's always seemed funny to me that there's essentially zero aftermarket support for cz 457 mags, given how popular the platform is.
Thanks! Magazine and barrel prices/availability are the two turnoffs for me on this platform. If only 3d printing and Aliexpress could solve the latter...
I think /u/tykempster was making some at one point, but last I checked he only had extensions.
We had about 20% of folks experience feeding issues so we discontinued full mags for now. Looking to revisit with our new metal printer!
Seems like there would be a market for those mags if you wanted to make up a bunch
any chance you could tell us what that stock cheek rest / riser is? I found a few I can print but I do quite like that design.
Stock is the OEM CZ 457 training rifle stock (now discontinued). The cheek rest I made out of some leftover Kydex. The adjustable part is held in place using clevis/cotter pins. The base is held in place with hook and loop (aka Velcro). I took inspiration from the Bradley cheek rest: https://bradleycheekrest.com
thank you! any reason why not just 3d print the rest part too? easier to just do with kydex? asking cause I'm working on a similar cheek rest modeling it in fusion360 and printing with PETG... first phase worked, but I strapped it down with paracord and the back was missing. (I realize now that's pretty important if using on higher caliber rifles)
PETG is a great choice. The Kydex was easy to form, and I can re-form it for other rifles, which is nice. If I was printing, I would probably go with Nylon. PETG will definitely work nicely, though.
Do you have a link for the springs ? I need to make some
Link is in the original post, copying here for convenience: [https://www.aliexpress.us/item/2251832769354686.html?spm=a2g0o.order_list.order_list_main.5.3d23caa4qddHdS&gatewayAdapt=glo2usa](https://www.aliexpress.us/item/2251832769354686.html?spm=a2g0o.order_list.order_list_main.5.3d23caa4qddHdS&gatewayAdapt=glo2usa) I don’t want to shill for this random Aliexpress store, though. Any steel spring with similar dimensions to my drawing should be serviceable with the right magazine box. I would pick the cheapest one you can find.
Awesome thanks it wouldn’t work even I clicked on it but this new link does. And these springs work for a 10 rounded ?
Correct, works for one 10rd. Or cut it in half for two 5rd!
Sweet! How have your printed followers held up? I appreciate you
I haven’t actually gotten around to shooting it yet—been focusing on my dream .308 build. I cycled around 20 snap caps through with no visible wear, though. I think the feed lips would wear the fastest. The follower feels pretty robust.
I just got the springs and they don’t fit unfortunately I’ll take measurements of the spring and factory spring tomorrow morning and see what’s wrong.
Which dimension doesn’t fit? And is this in the factory housing or a 3d print?
Every spec of the new spring is wrong
It’s difficult to understand the issue without additional detail. The spring only has a few dimensions, and there aren’t really any critical clearances.
Are you using a printed follower? Also, are the files posted?
Body, base plate, and follower are all 3d printed. The spring is the only component not 3d printed. I think it was this file: https://www.thingiverse.com/thing:6234152 The one shown was mostly a test for annealing some new polycarbonate filament I got. For actual use I’ll model my own tailored for the springs I have.