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

[woodchucker]

just send your drill bit in.. see if it works, the slit will still allow it to tighten.
on second thought, no

 

[dkemppai]

The little 1.25G SFP/ 10G SFP+ switch arrived. The internal fan isn't much of a fan. I think it actually uses noise to scare the air out of the box. Fortunately the fan in a standard 4Pin PWM fan. As a quick test, plugged in a nice quiet 120mm PC fan. MUCH better.

So, pulled the cover, and did a CAD model of a new cover to 3D print. Let it fly last night. The fan bolted directly to it, which is a good sign. And the cover slipped on the switch which is also a good sign. Next step will be to hang this in the network closet and move all the SFP/SFP+ fiber connections over from the older switch.

If this works well, I might just throw the existing cover on the CNC and cut the 120mm fan cutout into the existing aluminum cover. But for now this will work.

It's supposed to transfer data at native speed. I'll do some testing as soon as everything is configured.

 

[WobblyHand]

It was a small burr. Cleaned it up and that fixed the issue. Now trying to do an M8x1mm internal thread has been interesting. The thread seems ok, I think I didn't quite make the gutter correctly. My test screw goes in to about the beginning of the gutter, it should go to the end of the gutter. Debating whether to break up the threading setup or not. Once I convince myself that the threads are good, I will just open up the gutter a tiny bit.

 

[pontiac428]

Today, I fitted and lapped a bolt to its new action. The lathe makes a good holder for the mandrel while lapping it in. PTG sent the bolt to me .0003 fatter than my requested spec, according to my best German mics, so I did have to turn the bolt with emery cloth until it cleared, and it took a little extra trabajo duro during lapping. But the result was fantastic, though!

 

[mmcmdl]

Slow day in the shop . Had to re-purge the oil heater for water in the tank . New eye glassed on their way . All 24 gallons of mixed oil were disposed of . Fan project put on hold . Tomorrow we light up the sky . The last burn in the firepit without the hopper . 3y yards of topsoil to move down to the other house and the burn, the back yard will be clear after 30 years . It'll get done and then get a small vaca up to thr NY property to let the dogs run . These tools are on the back burner for another 2-3 weeks . Retirement is fun being able to to things on your time , but thinking no work , right , I gotta go back to work to get a break .

 

[Eyerelief]

easy little job today. Fella came by with a spindle assembly for a walk behind weed wacker. Had a domed cover on the end that unwelded itself.

Took it apart

I don’t think these were designed to be repaired. The drive pulley wobbled by hand but wouldn’t come off without the press. Turns out it’s a slip fit with a couple small burrs that bite into the shaft. You can see the imprint from the burr on the top of the shaft.

Obviously a sacrificial design to save the rest of the machine. I didn’t think the same burr would work twice so asked the guy about installing some set screws as a backup. #6 screws without much pressure on them. Had to drill the hub at an angle to clear the lip of the pulley.

All the material in the spindle assembly was very soft.
After spot welding the plate on the bottom I trued up the welded plate on the lathe. Once it deflected under .010 I called it close enough and ran a bead 360 degrees. Turned some of the weld off and rebalanced the shaft.
I rotated the pulley a few degrees from the original scratch mark and pressed it back on. It did mark the shaft when I pressed it on so I put a little loctite on the set screws and gently snugged them up thinking they might pick up a little load as well. They are on a smooth shaft so they can’t and should not do much. Put it all back together and got it ready for return

Not something I normally do but easy can be fun too.

 

[extropic]

I borrowed the photo from a previous post to illustrate a safety reminder.
It would be no more difficult and much more secure to grip the bottom 40% of the workpiece (above the vise jaws) rather than the precarious grip shown.

 

[wachuko]

Needed to make a bushing to adapt a new 11 lbs counterweight to my small telescope mount…

Had some brass rods. Finally got to machine some brass!!





Done!



Now I can return the hole punch dies I was temporarily using

 

[pontiac428]

I borrowed the photo from a previous post to illustrate a safety reminder.
It would be no more difficult and much more secure to grip the bottom 40% of the workpiece (above the vise jaws) rather than the precarious grip shown.

View attachment 463214

My luck with fixing parts like that usually costs me both a tool and a scrapped part. As soon as I've forgotten the last time, I go and do it again with the same results.

 

[matthewsx]

The little 1.25G SFP/ 10G SFP+ switch arrived. The internal fan isn't much of a fan. I think it actually uses noise to scare the air out of the box. Fortunately the fan in a standard 4Pin PWM fan. As a quick test, plugged in a nice quiet 120mm PC fan. MUCH better.

So, pulled the cover, and did a CAD model of a new cover to 3D print. Let it fly last night. The fan bolted directly to it, which is a good sign. And the cover slipped on the switch which is also a good sign. Next step will be to hang this in the network closet and move all the SFP/SFP+ fiber connections over from the older switch.
View attachment 463188 View attachment 463189
If this works well, I might just throw the existing cover on the CNC and cut the 120mm fan cutout into the existing aluminum cover. But for now this will work.

It's supposed to transfer data at native speed. I'll do some testing as soon as everything is configured.

Very nice, this is where I was today….

Open Compute Project

Open Compute Project

www.opencompute.org

definitely some data transfer going on with these guys.

John