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Thread: Your latest project
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12th Sep 2021, 10:13 AM #2626I break stuff...
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I truly hated that whole flat area. None of the swarf that landed there could go anywhere because the first hole through the bed is way back towards the tailstock, and it'd fill up ridiculously fast, especially if you had some stringy chips in there. Invariably I'd end up with a longer bit swinging around off the part that then grabbed everything piled up in that piece of bed, and launched chips and swarf absolutely everywhere.
So glad the Graziano has holes through the bed right under the chuck, stops that from happening (mostly).
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15th Sep 2021, 10:29 PM #2627Diamond Member
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- Revesby - Sydney Australia
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It isn't only big machines like your Gratzi which have that feature. The toolmaker's little Pacific:
IMG_1943.jpg
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17th Sep 2021, 10:06 AM #2628Diamond Member
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Many hours bandsawing
Vintage Engine guy has a big bit of 4340 round – 414mm long by 140mm round – that he wants to machine into a crank. Thinks it is just big enough to also get 4 con rods out of. So some careful band sawing occurred:
IMG_1948.jpg IMG_1949.jpg IMG_1952.jpg IMG_1954.jpg
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The big bandsaw wasn't quite big enough, so we had to remove the a hydraulic ram pin, and then the tension spring, and then move the variable jaws to the other side so the blade cover would clear the material. And then the rubber straps to give it some cutting force.
Final cuts were within 1mm parallel – middle block within 1.9mm of the target crank thickness!Nigel, from a cave FULL of unfinished projects and lost tools.
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17th Sep 2021, 11:15 AM #2629Most Valued Member
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[QUOTE=nigelpearson;1989083]I can see some wisdom in that, although the size of the target might be an issue?
(hand-eye co-ordination is much better than knee-shin)
/QUOTE]
There are knee emergency stops with very large targets, they not your normal switch
emstop.jpg
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18th Sep 2021, 09:48 AM #2630Most Valued Member
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- Nov 2007
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- melbourne australia
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I've got no evidence to back this up, but I reckon for an emergency stop to be useful you need to use it every time you switch the machine off. It has to be muscle memory. I think for most people, when the machine grabs hold of them the brain is going to totally focus on the imperilled limb and forget all about the E-stop down at the knee.
Chris
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18th Sep 2021, 10:19 AM #2631Most Valued Member
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Actually, I found some. From this paper http://archives.njit.edu/vol01/etd/1...td1986-010.pdf
"In an industrial environment requiring an emergency stop motion, faster response would be expected if the operator was familiar with the exact motions required. This would seem to indicate that the emergency stop motion should be utilized during routine stopping of equipment."Chris
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18th Sep 2021, 12:13 PM #2632Member: Blue and white apron brigade
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BILs DP off and E-switch - works via a headbutt
DPswitch.jpg
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18th Sep 2021, 04:19 PM #2633Most Valued Member
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I reckon that’s a good idea. Looks like it could use some padding though!
Chris
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18th Sep 2021, 07:47 PM #2634Member: Blue and white apron brigade
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19th Sep 2021, 05:59 PM #2635Philomath in training
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- Oct 2011
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- Norwood-ish, Adelaide
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Finished my welding helmet stand today. The new helmet hasn't got the typical strap arrangement that they usually have so I made up an ellipical form to be a similar size to the top of a head. It's fashioned out of 12 segments (cut from 1.6mm sheet) that have then been welded together into that dome shape and then 'massaged' to remove the flats.
DSCN8453 (Small).JPG
That was then mounted on a swing out arm so I could lift it on and off the stand. In the photo below you can see a semicircular shape which is the previous style of helmet support that I have used.
DSCN8481 (Small).JPG
Seems to work...
DSCN8480 (Small).JPG
Michael
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19th Sep 2021, 07:08 PM #2636Most Valued Member
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Nice support for the mask, looks like Darth Vader came for a visit with nobody.
I turned one up out of wood a few years back, all off centred turning. FUN, not.
KrynTo grow old is mandatory, growing up is optional.
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19th Sep 2021, 09:06 PM #2637Philomath in training
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- Norwood-ish, Adelaide
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The worst part was trying to hold the thing while welding. Once the first tube was on it was so much easier (well, relatively) to clamp down and get an earth.
Michael
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20th Sep 2021, 02:05 AM #2638China
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- Dec 2005
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- South Australia
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That's a bit fancy leaves my "any were I put it" a bit wanting.
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20th Sep 2021, 09:16 AM #2639Most Valued Member
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- Aug 2011
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- Melbourne
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Holy crap Michael, That looks like some 1950's science experiement!
But, as usual I like what you have done! Put's me to shame. Mine helmet just gets plonked on the nearest horizontal surface.
You could market that helmet holder for all the anti vaxer's to wear on their head to avoid detection!
SimonGirl, I don't wanna know about your mild-mannered alter ego or anything like that." I mean, you tell me you're, uh, super-mega-ultra-lightning babe? That's all right with me. I'm good. I'm good.
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20th Sep 2021, 10:23 AM #2640Pink 10EE owner
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- Aug 2008
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- near Rockhampton
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I know what it is really for. It is to stop the 5G signals that are emanating from the microchips in people who got covid vaccinations.
Gold, the colour of choice for the discerning person.
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