Tiny 3D printing project to improve RCBS's neat Rifle Tube Bullet Feeder

[GW Staar]

kk


Pretty little thing and includes an "M" neck expander to feed bullets straight and true with no leaning bullets.

But.......if there's a klutz around (me) you can forget and tip the die and chase and/or lose ball bearings on the floor......and the clear plastic tube holder can be bumped out and you get to pick up bullets on the floor too.

I'm really spoiled since I 3D printed TylerR's PLA pistol bullet feeders.....they being held together by springs.....and those klutz moments don't happen with those. But other than those negatives the RCBS rifle version is 100% efficient and I love 'em (have 2, 308 and 223). But not enough to prevent me from borrowing the spring idea from TylerR, even if there is some "uglifying" necessary. So this was the plan:

Two parts (three tiny prints):



Done! and it cures the problem!



I know it got hit with an ugly stick, but no more possibilities of a spill and it works just as good!

Quick vid shows how the "M" die before the powder measure insures an absolutely straight bullet headed for the seater.

 

[Mark_Mark]

I need a 3d printer! what program are you using to design this? I used AutoCAD/CAM 20+ years ago and it was very expensive then

 

[Mark_Mark]

kk
View attachment 1072278
View attachment 1072279
Pretty little thing and includes an "M" neck expander to feed bullets straight and true with no leaning bullets.

But.......if there's a klutz around (me) you can forget and tip the die and chase and/or lose ball bearings on the floor......and the clear plastic tube holder can be bumped out and you get to pick up bullets on the floor too.

I'm really spoiled since I 3D printed TylerR's PLA pistol bullet feeders.....they being held together by springs.....and those klutz moments don't happen with those. But other than those negatives the RCBS rifle version are 100% efficient and I love 'em. But not enough to prevent me from borrowing the spring idea from TylerR, even if there is some "uglifiying" necessary. So this was the plan:

Two parts (three tiny prints):

View attachment 1072280

Done! and it cures the problem!

View attachment 1072281
View attachment 1072282
I know it got hit with an ugly stick, but no more possibilities of a spill and it works just as good!

Quick vid shows how the "M" die before the powder measure insures an absolutely straight bullet headed for the seater.

it looks like a time machine!

 

[GW Staar]

I need a 3d printer! what program are you using to design this? I used AutoCAD/CAM 20+ years ago and it was very expensive then

I do use Autocad sometimes, but I have this "free program" that TylerR uses that is small enough to use on my little laptop. I had to unlearn a lot, but I'm getting better. I think non-Cad users can learn it faster.....

https://www.rs-online.com/designspark/mechanical-download-and-installation

 

[Blue68f100]

I do use Autocad sometimes, but I have this "free program" that TylerR uses that is small enough to use on my little laptop. I had to unlearn a lot, but I'm getting better. I think non-Cad users can learn it faster.....

https://www.rs-online.com/designspark/mechanical-download-and-installation

That's a Windows Only program, want run on my Mac.

 

[GW Staar]

That's a Windows Only program, won't run on my Mac.

And I thought I was the only divergent around here by using RCBS progressives! Sorry....they're European.

 

[Wyo82]

I need a 3d printer! what program are you using to design this? I used AutoCAD/CAM 20+ years ago and it was very expensive then

You can start out designing stuff on tinkercad, which is an online based free program. You can either create from scratch, or import existing files and tweak them or modify however you need.

 

[Mark_Mark]

You can start out designing stuff on tinkercad, which is an online based free program. You can either create from scratch, or import existing files and tweak them or modify however you need.

I’m going to check this out!

now I need more $$$$

 

[Mark_Mark]

And I thought I was the only divergent around here by using RCBS progressives! Sorry....they're European.

I use only Mac too

 

[GW Staar]

Many years ago, my vocation made the choice for me......Autocad came in one flavor, Microsoft. A few things have changed, but not enough......and I sure don't like Apple pricing. So you'll have to find another choice of cad.....and no I don't like Bill Gates....crooked as the day he stole Steve Jobs ideas. But in my vocation I had no choice back in 1974.

 

[Mark_Mark]

Many years ago, my vocation made the choice for me......Autocad came in one flavor, Microsoft. A few things have changed, but not enough......and I sure don't like Apple pricing. So you'll have to find another choice of cad.....and no I don't like Bill Gates....crooked as the day he stole Steve Jobs ideas. But in my vocation I had no choice back in 1974.

Bill Gates ! lol

 

[GW Staar]

Today I printed the .308 version. Decided to change the shape of the rounded bell to a case-like bevel. Looks less like that time machine. I think I like it better. the window I tried to round a little....I like that less. Oh well. I don't think it's worth it to print more, but I'll change both .stls to do the sharper angles, in case a user of these tools wants a copy.

Notice RCBS's graphic tube.....very rigid stuff...I hated not being able to see how many bullets in it, so I slit it with a dremel in a jig. Didn't hurt the integrity one bit. Like it much better.

BTW, parts are the same for both size-wise except for the window and bell shape and the identification lettering

 

[Mark_Mark]

Today I printed the .308 version. Decided to change the shape of the rounded bell to a case-like bevel. Looks less like that time machine. I think I like it better. the window I tried to round a little....I like that less. Oh well. I don't think it's worth it to print more, but I'll change both .stls to do the sharper angles, in case a user of these tools wants a copy.

Notice RCBS's graphic tube.....very rigid stuff...I hated not being able to see how many bullets in it, so I slit it with a dremel in a jig. Didn't hurt the integrity one bit. Like it much better.

BTW, parts are the same for both size-wise except for the window and bell shape and the identification lettering

View attachment 1072505

do a video of it running!