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3D printed chassis.

Posted: Mon Sep 25, 2023 11:16 pm
by CPJ 2.0
Whipped up a chassis for my old crusty Savage Mark 2. The original design was made for an accutrigger model.
Mine isn’t that.
So, I made the changes and made some prints to test the changes. Ended up with this. Not done, but very close.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:18 pm
by CPJ 2.0
This was printed upside down, so the printer adds support material to the bed so that that it can support the print as it arches over.
This could have came out in one piece had I done it correctly.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:19 pm
by CPJ 2.0
Rear looks like ass. Something with the support isn’t bueno.
So I sanded it. It will work for a test bed.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:21 pm
by CPJ 2.0
Printing in pieces is an excellent way to get around using support, and makes for better prints when the part is in an ideal position. Just add features to key them together.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:22 pm
by CPJ 2.0
“Hahahaha! Bet it won’t be around like grandpas gun from the Great Depression that filled our pots with squirrels and armadillos! Better not leave it in the sun!”

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:28 pm
by Justsomedude
Looks good. What was the print time? Also, I had support issues like that and it turned out that my base layer was too high so they didn't adhere everywhere they should have.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:39 pm
by PFD45
Very interesting pictures and progress report.

Making 2 pieces and attaching them later would seem to make sense.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:52 pm
by CPJ 2.0
Justsomedude wrote: Mon Sep 25, 2023 11:28 pm Looks good. What was the print time? Also, I had support issues like that and it turned out that my base layer was too high so they didn't adhere everywhere they should have.
5 ish hours.

That’s like 20 in Ender time. 😬


Not sure what’s the deal with the support, everything *should* be fine.

I sanded it smooth-ish. It’ll work forever, or till I re print it.

Re: 3D printed chassis.

Posted: Mon Sep 25, 2023 11:54 pm
by CPJ 2.0
PFD45 wrote: Mon Sep 25, 2023 11:39 pm Very interesting pictures and progress report.

Making 2 pieces and attaching them later would seem to make sense.
Say you print a coffee cup. You want it vertical. Like the cup sets. The print head just spirals around pooping out plastic in a circle and gets higher with each turn.

But lay it horizontal, and there has to be support material what for it to print upon. And it WONT be round. may work for some things, but not this. Hence the two pieces.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 12:13 am
by Justsomedude
CPJ 2.0 wrote: Mon Sep 25, 2023 11:52 pm
Justsomedude wrote: Mon Sep 25, 2023 11:28 pm Looks good. What was the print time? Also, I had support issues like that and it turned out that my base layer was too high so they didn't adhere everywhere they should have.
5 ish hours.

That’s like 20 in Ender time. 😬


😳
Damn, that's hauling.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 12:17 am
by CPJ 2.0
Justsomedude wrote: Tue Sep 26, 2023 12:13 am
CPJ 2.0 wrote: Mon Sep 25, 2023 11:52 pm
Justsomedude wrote: Mon Sep 25, 2023 11:28 pm Looks good. What was the print time? Also, I had support issues like that and it turned out that my base layer was too high so they didn't adhere everywhere they should have.
5 ish hours.

That’s like 20 in Ender time. 😬


😳
Damn, that's hauling.
It’s STUPID to watch it move.
And it makes good prints. Not just fast prints.

I made some M Lok hardware also. Not exact, but it works. Don’t have a 10-24 tap on hand to chase the threads, so I’ll just dial the fit in with software.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 12:49 am
by Justsomedude
That's a really good thread print. I've yet to print any threads but read that layer height is the difference between good and bad ones. Your printer does a helluva job but I don't know that I could justify changing out what I have for now. You ought to look into printing the stronger materials, mostly just because I wanna know how it handles them 😁

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 1:04 am
by Gila
CPJ 2.0 wrote: Mon Sep 25, 2023 11:16 pm Whipped up a chassis for my old crusty Savage Mark 2. The original design was made for an accutrigger model.
Mine isn’t that.
So, I made the changes and made some prints to test the changes. Ended up with this. Not done, but very close.
What's your helper there up to?

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 1:06 am
by CPJ 2.0
Justsomedude wrote: Tue Sep 26, 2023 12:49 am That's a really good thread print. I've yet to print any threads but read that layer height is the difference between good and bad ones. Your printer does a helluva job but I don't know that I could justify changing out what I have for now. You ought to look into printing the stronger materials, mostly just because I wanna know how it handles them 😁
This is carbon fiber PLA.

Handles it with ease.



Layer height helps, but I just walked the thread diameters out by .008 software. The software makes it exactly what you draw. The printer is of course gonna squirt what it squirts, but not exact. Making them a bit big allows for that.

I’ve done 1/2-28 threads that threaded on. They were tight, but they went. That’s without any tweaking.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 1:07 am
by CPJ 2.0
Gila wrote: Tue Sep 26, 2023 1:04 am
CPJ 2.0 wrote: Mon Sep 25, 2023 11:16 pm Whipped up a chassis for my old crusty Savage Mark 2. The original design was made for an accutrigger model.
Mine isn’t that.
So, I made the changes and made some prints to test the changes. Ended up with this. Not done, but very close.
What's your helper there up to?
She was supervising.

Now she’s on security detail.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 2:11 am
by Japhy
CPJ that is nice work! From design to the end product

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 2:20 am
by CPJ 2.0
Japhy wrote: Tue Sep 26, 2023 2:11 am CPJ that is nice work! From design to the end product
Thanks, but I can’t take full credit. At least for 98% of it, the actual functional part. 😬 The original model had a 1913 rail on the back what for clamping a folding stock. I had carbon fiber tube, so I made that design change.
Butt plate is cooking as we type.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 3:32 am
by Zee
Well done.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 3:34 am
by CPJ 2.0
I need to repaint the metal, but that’s a project for another year. This guns purpose is for small furry things what go bump in the night.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 4:10 am
by Zorba
DAYUM that's impressive!

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 4:22 am
by Diver43
That is pretty Kool. Will the product hold up to larger calibers?

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 4:28 am
by CPJ 2.0
Diver43 wrote: Tue Sep 26, 2023 4:22 am That is pretty Kool. Will the product hold up to larger calibers?
.223, certainly.

Anything larger? Meeeeehhhhh not so sure.

Ive pondered it.

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 10:38 am
by breamfisher
That rifle would look much better with a wood stock and proper scope...

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 11:52 am
by CPJ 2.0
IMG_0198.png
IMG_0198.png (483.43 KiB) Viewed 3760 times

Re: 3D printed chassis.

Posted: Tue Sep 26, 2023 11:57 am
by Chiro1989
That will work. Is the stock permanently anchored or take downish?