Needs Pictures: 0
Picture(s) thanks: 0
Results 16 to 30 of 451
Thread: What did you learn today?
-
23rd March 2012, 03:26 PM #16
Quite recently I learned that machining magnesium wheels then leaving the swarf near the grinder is not a really good idea - I wondered why the sparks were turning bright white......hard to put out too!
-
23rd March 2012 03:26 PM # ADSGoogle Adsense Advertisement
- Join Date
- Always
- Location
- Advertising world
- Age
- 2010
- Posts
- Many
-
23rd March 2012, 03:53 PM #17
The other thing that I learned today is that Scotch only seems to fix a sore throat. And a gashed shin.
It's all part of the service here at The House of Pain™
-
23rd March 2012, 03:57 PM #18It's all part of the service here at The House of Pain™
-
23rd March 2012, 05:54 PM #19SENIOR MEMBER
- Join Date
- Feb 2010
- Location
- Ballina, NSW
- Posts
- 725
Completely irrelevant to this forum (I hope), but when I was a kid I thought it would be great idea to whack a pile of shotgun cartridge primer caps with a hammer. I learnt something that day !
- Mick
-
23rd March 2012, 06:53 PM #20
In the first week of my apprenticeship i learnt not to weld any where near flammable vapors. I watched in horror as someone tried to use an old 60l thinners drum as a bench for welding. Lets just say that there wasn't much left of the job, drum or welding mask after the first spark flew. Luckily the guy was only mildly burn't, the mask coped most of the shrapnel. A nice welcome to OHS in the workplace!
The other thing i learnt the hard way (took 2 goes too) was to watch where your hands/arms will end up whilst trying to crack tight nuts. The first time i was under my hilux (as a 17 or 18 year old) trying to remove the diff filler plug. I was on my back pulling down with all my might. Of course the plug let go and i coped the socket and ratchet clean in the face....blood nose, stars, black eye...ouch!
Of course i didn't learn, and years later, with the front of my wifes care on stands, i sat under the side of the car trying to remove the 32mm flare nut that hold the filler tube to the front of the gearbox sump. Just as i thought to myself "if this lets go the inside of my wrist is going to collect the end of the pin on the car stand" of course it let go immediately, blood, blood, blood.....lots of it, feeling feint..... It turns out there are lots of veins and arteries on the inside of your wrist..who have thought?
Just remember to learn from others mistakes, you can't live long enough to make them all yourself.
Ewan
-
23rd March 2012, 08:27 PM #21
Some years ago a new to us TIG welder with a fair few years of experience told us at morning tea how he had accidently let a hot torch rest on his thigh while he moved his work to access his next weld. In the process, hot sharp point of electrode came in contact with sensitive tip of nearby extendable anatomical feature and burnt it's way in quite well. He would never again let a torch rest on his thigh.
That afternoon he did something similar, involving one of the anatomical features two best friends. Didn't see him for a couple of weeks.
-
23rd March 2012, 11:52 PM #22GOLD MEMBER
- Join Date
- Aug 2011
- Location
- Melbourne
- Posts
- 2,951
I like this thread!
About a year ago I was replacing all the bearings in my lathe. Some of the bearings I pressed out with my electric hydraulic press. I love my home made electric hydraulic press but with up to 20 tonne at the push of a button, it's easy to loose any feel for the job. If you are going to press out a bearing, make sure you have a proper (not a man look) look for any circlips that might be retaining the bearing!
By the time my peanut brain wondered why the bearing wasn't pressing out of the cast iron bearing seat it was too late. Balls and cast iron everywhere, it was like a claymore had gone off. Two bearings back to back with a circlip in between. Who would have thought? What a retard!
Bearing & bearing seat: 0
Hydraulic Press: 1
-
24th March 2012, 12:35 AM #23I break stuff...
- Join Date
- Aug 2010
- Location
- Melbourne
- Posts
- 539
It is one of natures many wonders, that this thought only ever occurs at the exact moment the bolt cracks. Instead of a full stop at the end of that thought, you get searing pain...
I didn't learn this one today, but I've learned to observe the direction of wheel rotation as opposed to edges when using wire/scotchbrite wheels on an angle grinder. Had a Scotchbrite wheel on a 5 inch grinder, cleaning up a trailer for painting, and ran it over an edge from the wrong direction. Kicked straight out of my hands and bounced off the ground into the bottom of my pants leg. It then proceeded to wind the bottom of my pants leg around the wheel until it got bored, at which point it just sat there humming, and I ripped the plug out of the extension cord.
Absolutely no damage to me, once I untwisted pants from grinder the blood flow returned to my foot, and one of my mates probably still has a photo of me standing there with an angle grinder hanging off my pants near my ankle....
-
24th March 2012, 01:09 AM #24Senior Member
- Join Date
- Apr 2010
- Location
- Rural Victoria
- Posts
- 359
-
24th March 2012, 02:10 AM #25Senior Member
- Join Date
- Apr 2010
- Location
- Rural Victoria
- Posts
- 359
Today (yesterday now) a $1 million machine can be stopped by a 10 cent part (and lack of maintenance).
Mazak Spacegear 2500, scrap conveyor motor is held by a single pin, cross drilled and held by a split pin on both ends.
Of course, scrap conveyor is of poor design and wobbles around, and is poorly maintained for 'operational' reasons (ie profit), and the split pin shears off, locating pin wiggles out, and motor moves under its on unsupported torque and jams itself under moving table of machine.
Old English proverb 'For want of a nail...'
Y'know, sometimes I wonder, are we in this fight together? As soon as I heard that crunch when I jogged the table, I stopped. Is that the benefit to the Australian manufacturing industry by having machines at home? I suggested a remedy that will fix the problem FOREVER for $3.00. Will this stop greedy businesses outsourcing to China? Sometimes I wonder if business owners, politicians, and bureaucrats are just in it for themselves.....
-
24th March 2012, 09:03 AM #26GOLD MEMBER
- Join Date
- Aug 2011
- Location
- Melbourne
- Posts
- 2,951
Thanks Gerb,
Yes distractions. Even when you are in your shed with "no distractions" being so used to distractions means you are distracted because in the back of your mind you are waiting for the next distraction! AHHHH.
Got your PM. Thanks, I also replied.
Cheers,
Simon
-
24th March 2012, 09:27 AM #27SENIOR MEMBER
- Join Date
- Sep 2011
- Location
- Ballarat
- Age
- 65
- Posts
- 2,659
ok, seeing as how we are all 'fessing up, I learnt the value in tack welding instead of fully welding. I made a new workbench last weekend and first step was to cut all the pieces of box section and label them. You know, front, back, side leg. Then i picked up the front piece and a side piece and tacked them together. I then picked up the back piece and a 'leg' and tacked them together.
It's times like these you are glad noone is around hear what you have to say.
Phil
-
24th March 2012, 02:22 PM #28GOLD MEMBER
- Join Date
- Nov 2007
- Location
- melbourne australia
- Posts
- 2,660
I learnt few years ago, while building my house, that there is no safe way to use a 2300W 9" angle grinder- only that some jobs are less dangerous than others.
-
24th March 2012, 08:38 PM #29Senior Member
- Join Date
- Oct 2008
- Location
- Wimmera
- Age
- 51
- Posts
- 363
-
26th March 2012, 07:57 PM #30future machinist
- Join Date
- Mar 2008
- Location
- nowra
- Posts
- 1,361
Don't turn the mill on with a mag base dial indicator on the spinlle it ends up with a broken indicator
BETTER TO HAVE TOOLS YOU DON'T NEED THAN TO NEED TOOLS YOU DON'T HAVE
Andre
Similar Threads
-
Where can I learn ?
By skygazer in forum HAND TOOLS - UNPOWEREDReplies: 14Last Post: 30th June 2008, 10:07 PM -
Learn a Little Every Day
By Termite in forum WOODIES JOKESReplies: 0Last Post: 8th November 2005, 05:11 PM -
Do a search - you might learn learn something you thought you didn't know!
By Rocker in forum NOTHING AT ALL TO DO WITH WOODWORKReplies: 10Last Post: 21st August 2005, 03:41 PM -
When.....will we learn?......
By martrix in forum HAVE YOUR SAYReplies: 14Last Post: 9th July 2005, 09:21 PM