What did you do today?

[3 Phase Lightbulb]

nuff said!

Ummmmmm, yes please!

[boslab]

Dragged a multico morticer out of the back of my van, **** that thing was heavy, took a chain block to stand it up, I feel backache coming on, got it in the shop, plugged it in pressed start, whoohoo it spins, punched a square hole in some scrap, great, pressed stop and all the bloody lights went out!, in 25 years pulling motors I realise I know nothing about wiring the damn things, everything in work was 3 phase which in all fairness is not rocket chemistry, what puzzles me is the ELCB in the house and shop tripping.
It was spinning ok, so I'm going to take a stab at the starter being knackered, I hope.
Occured to me if the motor needs replacing to fit a 3ph and a VFD, with the sliding table it will make a great tapping machine.
Mark

[MattiJ]

Replaced the DC motor in our community gate backup drive system (opens the gate when the power does out). And hey.. 3 hours later we lost power Unrelated to my efforts though.

Dumb design. Nice PM motor that is on the same belt with the main AC motor, so the bushes wear whether you use it or not. Motor was totally worn out... but heck, it lasted 12 years so nobody except me cares.

Add clutch that fails only once per 6 years

[jdedmon91]

I mounted a power feed to my Lagun mill


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[jdedmon91]

Yesterday I made attic pull kits


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[PStechPaul]

Dragged a multico morticer out of the back of my van, **** that thing was heavy, took a chain block to stand it up, I feel backache coming on, got it in the shop, plugged it in pressed start, whoohoo it spins, punched a square hole in some scrap, great, pressed stop and all the bloody lights went out!, in 25 years pulling motors I realise I know nothing about wiring the damn things, everything in work was 3 phase which in all fairness is not rocket chemistry, what puzzles me is the ELCB in the house and shop tripping.
It was spinning ok, so I'm going to take a stab at the starter being knackered, I hope.
Occured to me if the motor needs replacing to fit a 3ph and a VFD, with the sliding table it will make a great tapping machine.
Mark

Do you have arc detection breakers? It's possible that the inductive (and active) load of the spinning motor caused arcing of the contacts of the motor starter contactor, and that may have tripped the breaker. This would be more likely for an old device that may have corroded or pitted contacts which can cause arcing. Touching them up with a diamond file (if they are tungsten) might fix the problem. It also could have been an MOV or zener type protective device across the line that absorbed an overvoltage from the motor.

[boslab]

Thank you for replying Paul it's a big help, I'm not sure of the intimate construction of the breakers it threw, to me they are just standard ELCBs fitted to what we call consumer units over here, more investigation is needed there I think, if I get you right the back emf is arcing across as the contacts open, that potential is not present when closing them so that's how it switched on OK.
I will check them for squished spider and sawdust, clean them and have another go, thanks
Mark

[danlb]

Today I converted my newly purchased dirty old chuck to a clean old chuck.

It's a BTC 6 inch, 3 jaw scroll chuck that appears to have been used for fixturing parts on a CNC machining center. I see no wear anywhere on the whole thing, but I see that it appears to have lived in a bath of coolant. I found hardened grease and brown colored gunk everywhere.

It started out like this;



And ended up like this.



Actually, it ended up back together, but that was anti climatic.

Now I have to wait for the backplate to get here tomorrow.

Dan

[engineerd3d]

This is it for me.

[J Tiers]

Before I left on vacation, I had to make an emergency repair to the garage man-door. Frost-heaving had lifted the latch plate side of the frame so that the latch would not enter the hole. I found that out when I got something from the garage and discovered I could no longer latch the door, which would then be unlocked while we were gone. The mismatch was nearly 5/16 inch, around 7mm or so.

I had to make an emergency latchplate with a bigger hole. In the process, both the Adel nibbler and the old Radio Shack one jammed as I was cutting out the larger hole in a new piece of metal. I had to finish the job in a hurry with files.

So I finally got both of them un-jammed and working again. Both had to be disassembled.

[jdedmon91]

Well I finished the hair dryer mount. Got it up in the bathroom for the sweetie. I’m glad I’m not making these for profit because there’s a lot of time in it


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[jdedmon91]

Yesterday was messy out. Caught up on dovetailing some tool holders I had laying around. Now I can use them on my lathe. One I goofed and had to weld up the dovetail area and remachine it


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[Cenedd]

Saved myself £330.....never been so unhappy. Made do with the wrong tool for the job and now not overly happy with the results (it'll do but the pride in it's gone) and I don't have a shiny new dry-cut saw to play with either :-(
Couldn't decide between the Bosch GKM 18V-LI and the Milwaukee MCS66. The Bosch is half the price and cordless (I've already got the battery system) but doesn't have the chip collection and looks like it might not have quite the same capacity. (Opinions welcome as I'm sure I'll be drawn to one the next time I have to get out a hacksaw! Like for the piece of 10mm HRS plate that's waiting for me)
Ended up showering the garden in grinding dust instead and then trying to make the sheet flat again after the heat-warping.

[vpt]

Batteries suck.

[lugnut]

I bought two 3ft X 10ft sheets of NEW (.0216") 24 gauge: 16 ounce copper sheeting. Found it on Craig's list. Paid $300 for the lot. The guy was moving out of state and didn't want to take it along. I have some yard art in mind that will take about half of it. I only needed one of the sheets, but the guy wouldn't split it up. So I guess I'll be making a lot of copper stuff.