K-Baffles step-by-step

canenvy · Post by **canenvy** » Tue Jun 03, 2008 2:59 pm

why the hole in step 10??

WhisperFan · Post by **WhisperFan** » Tue Jun 03, 2008 6:02 pm

canenvy wrote:why the hole in step 10??

Some of the gas the gets trapped by the front of disc of the K-baffle (the dished portion). The 'mouse-hole' allows a portion of that gas to get back into the "K" portion of the baffle before it.

Hope that's not too hard to understand.

Noxspector · Post by **Noxspector** » Tue Jun 03, 2008 9:33 pm

Excellent post!!!!!!

How do you maintain the angle in step#6? Do you set the tool head to the angle you want and start with the deepest cut then move the tool out (Diameter) and up (forward on the baffle) then make another cut not so deep that it matches up with the previous cut?

WhisperFan · Post by **WhisperFan** » Wed Jun 04, 2008 6:34 am

Noxspector wrote:Excellent post!!!!!!

How do you maintain the angle in step#6? Do you set the tool head to the angle you want and start with the deepest cut then move the tool out (Diameter) and up (forward on the baffle) then make another cut not so deep that it matches up with the previous cut?

In step 5 I used a parting tool to plunge cut to the final depth. Then in step 6 I take off the shoulder and then keep taking off more and more with the compound set at the right angle.

canenvy · Post by **canenvy** » Wed Jun 04, 2008 11:49 am

WhisperFan wrote:
canenvy wrote:why the hole in step 10??
Some of the gas the gets trapped by the front of disc of the K-baffle (the dished portion). The 'mouse-hole' allows a portion of that gas to get back into the "K" portion of the baffle before it.

Hope that's not too hard to understand.

think i would need that for a .22 can??

jimmym40a2 · Post by **jimmym40a2** » Wed Jun 04, 2008 12:00 pm

Yes- you would

jimmym40a2 · Post by **jimmym40a2** » Wed Jun 04, 2008 12:00 pm

oops double post......

hotbrass · Post by **hotbrass** » Wed Jun 04, 2008 12:10 pm

I have a can with k baffles but no mouse holes.

Do you think it would benefit from mouse holes?

soundless · Post by **soundless** » Thu Jun 05, 2008 2:43 pm

hotbrass wrote:I have a can with k baffles but no mouse holes.

Do you think it would benefit from mouse holes?

Of course it would. U will notice a nice difference after you drill the mouse holes.

wolf · Post by **wolf** » Thu Jun 05, 2008 8:50 pm

soundless wrote:
hotbrass wrote:I have a can with k baffles but no mouse holes.

Do you think it would benefit from mouse holes?
Of course it would. U will notice a nice difference after you drill the mouse holes.

Are you sure about this ??
Then Why do most manufactures not use them anymore

hotbrass · Post by **hotbrass** » Fri Jun 06, 2008 9:53 am

soundless wrote:
hotbrass wrote:I have a can with k baffles but no mouse holes.

Do you think it would benefit from mouse holes?
Of course it would. U will notice a nice difference after you drill the mouse holes.

I was thinking of milling the holes. I wouldnt touch a baffle with a drill bit.

How much of a difference will I notice?

Closed Casket · Post by **Closed Casket** » Sun Jun 29, 2008 2:21 pm

Do you mill any holes on the rear of the k baffles that would leak gas into the cone?

WhisperFan · Post by **WhisperFan** » Sun Jun 29, 2008 3:43 pm

Closed Casket wrote:Do you mill any holes on the rear of the k baffles that would leak gas into the cone?

I don't .... That is what the mousehole at the bottom of the cone is for.

Wyatt9k · Post by **Wyatt9k** » Wed Jul 09, 2008 4:59 pm

In step 3 how far do you know to go in with the countersink? And then in step 6 how do you taper the outside down to where they are both parallel?

WhisperFan · Post by **WhisperFan** » Wed Jul 09, 2008 5:13 pm

Wyatt9k wrote:In step 3 how far do you know to go in with the countersink?

This doesn't mean to sound smart-assed .... but the countersink goes in all the way. Even if the countersink goes in all the way until the edge becomes sharp, you can always face off the sharp edge.

Wyatt9k wrote:And then in step 6 how do you taper the outside down to where they are both parallel?

Once you set the compound rest you taper the outside the same as the inside.

mylerw · Post by **mylerw** » Thu Jul 10, 2008 1:48 pm

bakerjw wrote:I'll try an explanation without pictures.

As gases accumulate in the chamber just before the flat part of the K, the hole in question directs them into the outer chamber of the K. The gases pass around the outside of the K until they come to the slotted hole on the left side of the picture. They then pass into the open cone area of the K where they are directed into the hole in question in the next baffle thus directing more gas into the outer chamber of that K baffle. for best operation the baffles need to have these holes aligned.

I'm just starting to research this stuff to build on a Form 1. (By 'this stuff' I mean can designs.)

Question:

Doesn't the assymetry of this hole (step 11) cause the bullet's path to deflect? What I mean by this is if the crown on the muzzle of a barrel is dorked up (assymetrical), the gases following and surrounding the bullet upon exit also become assymetrical and throw off the bullet's path slightly. This affects accuracy in a negative way.

These ports seem like they would have a similar effect unless they were alternated in the stack to 'balance' out the effect...? Or instead of one large port off-center, why not put 2 or 3 smaller ones to keep the symmetry intact?

I'm not saying it doesn't work for sound reduction but I would worry about baffle strikes and random accuracy.

Anybody have info to agree or disagree with this?

Thanks

WhisperFan · Post by **WhisperFan** » Wed Jul 23, 2008 2:38 am

mylerw wrote:Question:

Doesn't the assymetry of this hole (step 11) cause the bullet's path to deflect?

No

mylerw wrote:I'm not saying it doesn't work for sound reduction but I would worry about baffle strikes and random accuracy.

Anybody have info to agree or disagree with this?

These baffles have been around for years - I didnt' make them up. I believe that the whole system works because the bullet has already passed by the baffle and the baffle is taking care of the gas behind it.

Mtdew · Post by **Mtdew** » Wed Jul 23, 2008 9:45 pm

mylerw wrote: Or instead of one large port off-center, why not put 2 or 3 smaller ones to keep the symmetry intact?

because if you understood how the baffle actually functioned you would realize that would defeat the purpose of the port

mylerw wrote:I'm not saying it doesn't work for sound reduction but I would worry about baffle strikes and random accuracy.

Anybody have info to agree or disagree with this?

Thanks

You would be wrong, allmost EVERY modern baffle design is asymetric to some degree (even SRT's baffles have a scoop)

kiwi collector · Post by **kiwi collector** » Sat Jul 26, 2008 5:29 pm

Hello, thanks for the info, can I ask please what size is the mill cutter that you use for the mouse holes and for the slot at the top of the K baffle, is this important in regard to the size of the bore, are they both the same size or is one smaller that the other THANKS

WhisperFan · Post by **WhisperFan** » Sat Jul 26, 2008 10:59 pm

kiwi collector wrote:Hello, thanks for the info, can I ask please what size is the mill cutter that you use for the mouse holes and for the slot at the top of the K baffle, is this important in regard to the size of the bore, are they both the same size or is one smaller that the other THANKS

.3125" for both I use a size slightly smaller than the bore size.

centurion · Post by **centurion** » Sat Oct 11, 2008 8:36 pm

leo6223 · Post by **leo6223** » Sat Oct 18, 2008 12:34 am

Excellent post!!!!

This needs to be a sticky post!

Thanks for the info.

robtay · Post by **robtay** » Tue Oct 28, 2008 12:21 pm

Great write up. I've made my baffles using a similar process. Thanks.

Rob Taylor
FFL/SOT

tomovich · Post by **tomovich** » Thu Oct 30, 2008 12:42 am

This has been a very helpful (for processes) post......now.........how about a "making a neilson device step-by-step" post......

THAT would be COOL!

Calibur6918 · Post by **Calibur6918** » Thu Oct 30, 2008 8:37 am

I second that.

K-Baffles step-by-step

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Re: .

K Baffles

Re: K Baffles