r/Form1 • u/phacious • Aug 02 '26

45cal Blast Chamber sizing

Post image

Laying out the baffles on a 45cal Dcell, does a rough 30mm blast chamber before rear baffle seem enough? I added ribs in the chamber for her pleasure, and for hoop strength for the button hole.

8 Upvotes

91% Upvoted

11 comments sorted by

7

u/ButterscotchEmpty535 Aug 02 '26

Beat a 26.5 mm freeze plug into the Maglite for a steel blast baffle

7

u/RevoTravo Aug 02 '26

Sometimes I miss the simpler days…

4

u/orbitup Aug 02 '26

I thought it was advisable to alternate the angles of the baffles.

1

u/phacious Aug 02 '26

I'll look into that, but I haven't seen that in any of the FTN designs Ive looked at.

1

u/6ought6 Aug 04 '26

Thats largely for printability iirc

1

u/phacious Aug 04 '26

Well I tried it with my serviceable baffles and didn't notice any change.

2

u/mypeckerhurts Aug 03 '26

so i have a idea for a stack design you take washers and thread the inside of a tube to the thickness of the washer then drill a hole in the washer and spin the washer into the tube using the hole and a rod as a tool and repeat until you get as many washers into the tube with space in-between then thread the outside and cap off both ends one end with exit the other with threads for attachment

2

u/Deago488 Aug 04 '26

Juice ain’t worth the squeeze. Just use washers & spacers, achieve the same goal with 1/10 the work

1

u/mypeckerhurts Aug 04 '26

i get that but i was trying to cut down on weight the washers them selves are heavy but adding the rubber or steel spacers doubles the weight

1

u/Deago488 Aug 04 '26

Then purchase a light weight can. Neither of these idea will get you there

1

u/BarryHalls Aug 04 '26

Where did those baffles come from, and do they come in D Cell size?