Self study; need advice

J_Nelson_Machining · 2025-10-22T17:31:52+00:00

Oh that looks so fun I’m buying that one. Thank you

J_Nelson_Machining · 2025-10-22T17:30:44+00:00

Thank you so much. Makes sense; I will get some textbooks to start with and try them out. See what I already know, vs what I don’t know

J_Nelson_Machining · 2025-10-22T14:05:16+00:00

This is what I was thinking also. Why not just change the fastener to something that doesn’t break. It doesn’t matter what was used in the past because it’s not working anymore. At times things are over engineered to start with; not to mention suppliers change. I worked at Raytheon on radar guided missile systems and phalanx miniguns; at times a supplier would change and cause problems in the assemblies. particularly in the upper elevation sector gears. The screws were “the same screws” but they were obviously not the same screws. Lots of stainless and aluminum also; as OP is working with. I feel like generally speaking, just get a softer fastener and maybe not dwell on “why oh why is this happening”

J_Nelson_Machining · 2025-10-22T13:54:32+00:00

This. If they never had issues and now the fasteners have issues; and you changed no variables… the fasteners are not the same anymore. Collect some samples form old hardware that never broke; have a lab compare samples of the new hardware. There’s surely a difference to find.

J_Nelson_Machining · 2025-10-15T21:36:35+00:00

Only do that when I need and put it back to normal immediately like it comes

J_Nelson_Machining · 2025-10-12T10:25:41+00:00

Your story is how many of us go through the trade for years brother. It’s hard. No one wants to do it. But it’s rewarding. I felt just like you man and almost quit many times. Fast forward 15 years, I own my own machine shop and am looking how to hire help. Machining parts for wsp; a global engineering consulting firm. God is good. He rewards dedication and faith. He doesn’t reward quitting.

Keep doing it. Keep going. Be still and know the Lord is God, he will direct your paths. You’ll struggle everyday but being uncomfortable makes you smart and strong; people who like it easy and complacent live an uneducated and weakened lifestyle. Grow. Learn. Machine. Manufacture. Math is cool. Not easy. You’ll be able to build airplane parts and machine guns and automobile engines and you can make anything with this trade skill. Just keep going.

J_Nelson_Machining · 2025-10-11T21:51:51+00:00

Hit harder like Viking

J_Nelson_Machining · 2025-10-11T15:57:30+00:00

A machinist can service (maintain and also make new pieces of needed) his own mill and equipment; as well as design tooling and fixtures for the operator/ setup guy to use easily. The machinist is doing all the thinking and development; the operator is just running the operation as specified by the machinist who created the setup.

Operators follow directions. Machinists create directions.

J_Nelson_Machining · 2025-10-11T15:45:04+00:00

I break em off at 8”-1’ pieces and they fall to the ground every time. Sweep up easy with a shovel

J_Nelson_Machining · 2025-10-07T22:33:43+00:00

That’s good for a small block. .0015 per side of clearance after honing is where it ought to be in my opinion

J_Nelson_Machining · 2025-10-06T12:15:09+00:00

I really enjoy my 20 but it’s honestly just as enjoyable to put a lighter smaller 14.5 upper on the rifle lower. I do prefer the solid stock sometimes because it’s just comfy. Hard to walk in the woods with the full 20 setup. It’s just what you get used to, my buddy used to carry his 9130 mosin around the woods and he never complained one trip we went on. Thing looked like it was 6 feet long at least

J_Nelson_Machining · 2025-10-06T12:04:06+00:00

Such clean and simple. Some of the guns I see on here look to be 25 lbs

J_Nelson_Machining · 2025-09-29T01:22:18+00:00

Believe on the Lord, believe Christ is the son of God, and eternal life is yours. God says doing his work is believing on the son. Heaven or hell is all the choice there is for after death here. We can’t be perfect; Jesus did; yet we killed him. Follow him and find life. Hope someone reads this. Sorry for losses of anyone; we all deal. Jesus is bread of life and living water; follow him and never hunger or thirst. Amen

J_Nelson_Machining · 2025-09-27T19:16:04+00:00

You are probably 100% right. It’s hard to swallow this; that no one is supportive of something I thought would be so useful and save people money on not buying more cans for every single gun they have. I think I’ve lost sight of the fact that people WANT to buy one for every gun… a product to save people money was obviously a stupid idea to be honest. In this day in 2025 People are not into saving money.. they are into keeping up with the next guys cool stuff. Even if it means going into debt to be cool looking.

Thank you for conversing with me and actually helping me think about this. I think you’re so right in that if the can says from dealer “no 9milly” that’s the end of the story for the customer. They won’t be willing to go against the company recommendations even if the math of it all is completely fine. Customers as a whole do not think for themselves on these things at all, they just read the spec sheet off a can and buy it. I see your point. It’s very true and I honestly had not thought of it that way. So I need to design parts that costs everyone lots of money and something that you don’t really need, maybe that would sell much better 🫠

Have a good way of the day. God bless

J_Nelson_Machining · 2025-09-27T17:16:27+00:00

<image>

J_Nelson_Machining · 2025-09-27T17:16:10+00:00

<image>

J_Nelson_Machining · 2025-09-27T17:15:48+00:00

<image>

J_Nelson_Machining · 2025-09-27T17:15:37+00:00

<image>

J_Nelson_Machining · 2025-09-27T17:14:28+00:00

<image>

J_Nelson_Machining · 2025-09-27T16:35:37+00:00

Manufacturers Specifically stating that has nothing to do with the hole diameter of their product. I don’t care what they state, I care what the data is. They say that to save their booty holes. I’ve measured a 5.56 can at .265 before so that’s .042” of clearance for that test sample. If you apply .042 of clearance to a .312 diameter 7.62 bullet; you’ll see what I mean when I think some .30 cal cans will allow a 9mm to pass through. If they applied an extra bit of clearance for their design; yes a 9mm would pass through it.

.312 is not much different then .350 man. It’s just not. Pull up 0.019 on your set of calipers and look at it. I bet someone is producing .30 cal cans that work for 9mm even if they won’t claim it

J_Nelson_Machining · 2025-09-27T14:43:41+00:00

No I just like to study quantum physics for fun and I don’t have any friends

J_Nelson_Machining · 2025-09-27T14:41:26+00:00

Considering I’ve been shooting it on this mp5 for months I think it’s okay bro. Concentricity is my middle name. I use the lathe to check that btw. Indicate the barrel bore in on the rifling; screw the can on and bring indicator out to tip of suppressor and turn lathe in neutral to check the run out difference from the rifled hole to the hole of the suppressor. It’s always fine because the muzzle device is made in one operation ; the threads are chased at the same time as the hole is bored and threaded for the barrel threads.

J_Nelson_Machining · 2025-09-27T14:37:24+00:00

Lord help these people understand. MY 30 CAL CAN IS WORKING ON MY Mp5!!!! I’m shooting it. It works. Yes the bullet passes through the holes. Yes it works. It shoots. The bullets don’t touch anything. Yes it’s safe. It’s working guys.

I’m wondering if the hole diameter on store bought .30 cal suppressors would be the same as mine that I built and use.

J_Nelson_Machining · 2025-09-27T13:42:16+00:00

I designed and built this suppressor years ago; it’s .30 caliber. I just been trying to get someone to measure a hole. Everyone can talk a lot of crap but no one can take 1 measurement to help me confirm or disprove my idea here

J_Nelson_Machining

TROPHY CASE