u/Annual_Yam_8005 — reddlx

Apprentice fucks up tight tolerance inexplicably

Basically I fucked up my tolerance doing everything right, at least to my knowledge the machine was cutting exactly what I put on, final cut fucked it 0.1mm undersize. Told my foreman and my coworkers they obviously didn't believe me 2nd year apprentice fucks up a size and can't admit what he did wrong.

Hopefully you'll help me figure out why, 38mm diameter shaft +0.00, -0.02mm, and I took 3 same size finishing cuts (0.5mm rad) with a dial indicator on the cross slide held square, using tnmg0408 semi finishing grade, at roughly 0.21mm feed. First 2 cuts cutting spot on and obviously last cut it cut undersize by 0.1, I was watching the dial on the final cut and It did not pull in. I just don't know what happened, well at least I didn't scrap a 2 ton shaft that cost 10s of thousands of dollars.

Just to remove some confusion I did have the tailstock in just not in this photo, and I was turning the longest diameter.

u/Annual_Yam_8005 — 3 days ago

▲ 68 r/Machinists

Manslaughter charges laid over fatal mill acident

What do you guys think of this accident? I know most work places inculidng mine, remove guards. Some guards are so poorly designed that I would argue that they're more dangerous, not being able to see, frustration caused by the guard, etc.

7news-com-au.cdn.ampproject.org

u/Annual_Yam_8005 — 24 days ago

▲ 0 r/Military

I think fighter drones could be the next innovation

A drone built a lot smaller than say a ww2 aircraft with the maneuverability along with a machine gun attached, could be really good at intercepting mid strike and long range drone, such as a shahead drones, loitering munitions ect. These drones tend to be slow and fly in a straight line, and are hard to intercept with air defense because of the cost of high spec interceptors, and the short rang of AA guns. It could be really cost effective to defend large areas behind the front like in Ukraine and Russia, also in the middle east with the US and the Gulf states.

I'd also imagine fighter drone dogfights and fighter escorts for the oneway attack drones, full ww2 vibes.

I guess the same concept could be made smaller with say a full auto shotgun for fpv drones at the frontline.

reddit.com

u/Annual_Yam_8005 — 2 months ago