POTD- PROJECT OF THE DAY: What Did You Make In Your Shop Today?

[Suzuki4evr]

Just... WOW!

Sent from my SM-G715A using Tapatalk

Yes absolutely.

 

[wachuko]

Drain with filter for the CNC Plasma table is done...





Now to tackle the install of the laser pointers (for easier alignment with the material...

 

[mattthemuppet2]

Technically I didn't do the work, but I just walked my eldest daughter through replacing the capacitor on the AC unit in San Antonio. They now have AC again

well sadly it looked like it was on its last legs and went out again. Pretty sure the compressor is gone

 

[rdean]

I have a drawer where I store my short and cutoff pieces of aluminum. It had gotten so full it wouldn't close so I dumped it all out and sorted it. Many little pieces were sent to the scrappers and I organized the drawer with some dividers.

Much better now but I wonder for how long.

Since I was in the cleaning mood I hauled off pickup 2 loads of scrap steel and junk. I did find enough pieces to make this two drawer table top cabinet though.


My brass rods were stored all over the place so to organize them I made this rack.

I slit a piece of 2" pvc length wise added a cap for the bottom and two couplings to manage the different lengths. Since it is mostly open I can see the shorter pieces and when they get too short to stay in the rack they can go in the brass drawer.
I have made racks from solid pvc before but if you drop a short piece of material in a tube that is longer well it's just gone.

Ray

 

[extropic]

@rdean
I especially like the PVC tube unit.
I would have had 3 or 4 tubes of various lengths.
Your design saves table space and component costs.
Excellent.

 

[Boswell]

@rdean , I really like your pvc storage design you used for the brass rods.

 

[pontiac428]

Today, I spent several hours making only a few, very accurate cuts... I had the gumption to get going on building up a multi-use 6BR from a Remington 700 stripped receiver and components that were collecting dust. I actually forgot I had that action, it got lost in the safe for a very long time. I decided not to use the receiver fixture I ginned up way back, because the Bison makes it obsolete. Since it gets Cerakote anyway, the nearly invisible marks left from the jaws will be blasted away in the abrasive cabinet. The truing fixture works well, I used ARP 5/16 NEF rolled thread fasteners so it's robust. But it's a fiddly setup, and there are not a lot of places to pick up the number of arc sector points needed to have confidence in centering. Remington's bolt lug broaches hog trenches in the receiver walls ahead of the bolt lugs, and the front action screw is in the middle a critical arc. Then the threads start and there's no indicating off that. They're just tricky that way, so adding 8 spider screws to the mix had me feeling less motivated.

Pic break! Ye olde receiver fixture.



I haven't done a rifle yet on the Nardini. I can can get away with different approaches like this now with the more solid lathe. My most wee 4-jaw is the 8", which is pretty stout, so I decided to run it. The fine adjustment is heavenly, you can divide thousandths with ease. Bison's jaws are lab-grade when it comes to perpendicularity, KISS by eliminating the second alignment plane of the receiver fixture. After dialing center to the bolt raceway and proving it perpendicular to the spindle, I aligned the reamer and verified center using a pin gauge to a snug slip fit around the receiver face. This is a new Cleveland 23/32" MT2 x very very long helical reamer. The receiver is interrupted with a dozen subtracted features that tend to run lengthwise, so helical is the only way to do this. The bore was .7050 before, and the reamer is .7188. Surface area of the bore is really small, 1.5 sq inches, maybe. Run at 96 RPM, flooded with MobilMet 426. Went quiet and smooth.



Second is to face the receiver. Measured using a few redundant techniques, this one is out by about five tenths. Bumping up to 260 RPM, and using razor sharp Mo-Max, I peeled two passes at 0.0005 each, making a single pea-sized ball of 0000 fine steel wool for a chip.



The third step is facing the lugs, ideally by the same depth as the receiver was faced. While I am at it, I remove a tiny bit of material in front of the lugs, opening the corner a little bit, and cut all the way back to the threads, taking about .005 off this little spot on the inside. Why? Now I have a perfect, concentric, easy spot to indicate this receiver from, unlike the chitty surface Remington leaves. Brazed carbide (Sheckel ground) boring bar, 480 rpm. So my two passes of .0005 from the face are repeated on the lug faces, the surface is beautiful, everything's square.



Last step is to measure up and order the bolt. I get ground bolt bodies from PTG with extractor cuts as a time saver. I use the Remington bolt handle, grind the ball down, file it nice and round and thread the stub (choosing swept or straight ), then time the action and hard solder it to the new bolt. Then lap it to the action and polish the cams. They come out nice this way.



So that's how I spent my day off. Lots of measuring and setting up. I'm happy with the results, good day in the shop.

 

[Eyerelief]

Today, I spent several hours making only a few, very accurate cuts... I had the gumption to get going on building up a multi-use 6BR from a Remington 700 stripped receiver and components that were collecting dust. I actually forgot I had that action, it got lost in the safe for a very long time. I decided not to use the receiver fixture I ginned up way back, because the Bison makes it obsolete. Since it gets Cerakote anyway, the nearly invisible marks left from the jaws will be blasted away in the abrasive cabinet. The truing fixture works well, I used ARP 5/16 NEF rolled thread fasteners so it's robust. But it's a fiddly setup, and there are not a lot of places to pick up the number of arc sector points needed to have confidence in centering. Remington's bolt lug broaches hog trenches in the receiver walls ahead of the bolt lugs, and the front action screw is in the middle a critical arc. Then the threads start and there's no indicating off that. They're just tricky that way, so adding 8 spider screws to the mix had me feeling less motivated.

Pic break! Ye olde receiver fixture.

View attachment 460604

I haven't done a rifle yet on the Nardini. I can can get away with different approaches like this now with the more solid lathe. My most wee 4-jaw is the 8", which is pretty stout, so I decided to run it. The fine adjustment is heavenly, you can divide thousandths with ease. Bison's jaws are lab-grade when it comes to perpendicularity, KISS by eliminating the second alignment plane of the receiver fixture. After dialing center to the bolt raceway and proving it perpendicular to the spindle, I aligned the reamer and verified center using a pin gauge to a snug slip fit around the receiver face. This is a new Cleveland 23/32" MT2 x very very long helical reamer. The receiver is interrupted with a dozen subtracted features that tend to run lengthwise, so helical is the only way to do this. The bore was .7050 before, and the reamer is .7188. Surface area of the bore is really small, 1.5 sq inches, maybe. Run at 96 RPM, flooded with MobilMet 426. Went quiet and smooth.

View attachment 460608

Second is to face the receiver. Measured using a few redundant techniques, this one is out by about five tenths. Bumping up to 260 RPM, and using razor sharp Mo-Max, I peeled two passes at 0.0005 each, making a single pea-sized ball of 0000 fine steel wool for a chip.

View attachment 460607

The third step is facing the lugs, ideally by the same depth as the receiver was faced. While I am at it, I remove a tiny bit of material in front of the lugs, opening the corner a little bit, and cut all the way back to the threads, taking about .005 off this little spot on the inside. Why? Now I have a perfect, concentric, easy spot to indicate this receiver from, unlike the chitty surface Remington leaves. Brazed carbide (Sheckel ground) boring bar, 480 rpm. So my two passes of .0005 from the face are repeated on the lug faces, the surface is beautiful, everything's square.

View attachment 460606View attachment 460603

Last step is to measure up and order the bolt. I get ground bolt bodies from PTG with extractor cuts as a time saver. I use the Remington bolt handle, grind the ball down, file it nice and round and thread the stub (choosing swept or straight ), then time the action and hard solder it to the new bolt. Then lap it to the action and polish the cams. They come out nice this way.

View attachment 460605

So that's how I spent my day off. Lots of measuring and setting up. I'm happy with the results, good day in the shop.

Looks like you’re off to a great start. I’ve only usex chamber reamers from PTG. Please show some detail photos of the bolt when you get it, including a pic right out of the box if you don’t mind.

 

[rabler]

When I built my shop, the 3 banks of overhead lights were set up each with two 3-way switches, one by the front and one by the back door. And a 4-way switch by the office door. But because the office was added after the initial light run, everything was set up to add the 4-way switch in via a junction box. That junction box had the front 3-way, the back 3-way, the 4-way and the wires to the light all run to it. So that's 12 wires. The 4-way switch wasn't functioning right. Got it fixed.

Any mathematicians want to calculate how many ways 12 wires can be paired up? I get 10,395, but my combinatorics is rusty.

 

[WobblyHand]

When I built my shop, the 3 banks of overhead lights were set up each with two 3-way switches, one by the front and one by the back door. And a 4-way switch by the office door. But because the office was added after the initial light run, everything was set up to add the 4-way switch in via a junction box. That junction box had the front 3-way, the back 3-way, the 4-way and the wires to the light all run to it. So that's 12 wires. The 4-way switch wasn't functioning right. Got it fixed.

Any mathematicians want to calculate how many ways 12 wires can be paired up? Something starting with 12! ...

So on the order of 479001600 ways?