Results 931 to 945 of 948
Thread: Whisperings
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20th Aug 2017, 04:42 PM #931Philomath in training
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In theory it would be, but the rule across the bar trick has one side supported by the bar, so the rule 'rolls' into the horizontal position. With two points it would be almost 'out-good-out' in a split second, and that is without trying to get both axis in together.
Michael
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20th Aug 2017, 04:46 PM #932
Hi Phil,
Great pictures. The one with the 6" inch shaft and key ! That is quality work, the skimmed surface really shows off the precision and workmanship that went into that.
Re "Locktite" in particular "Super Glues" and "Epoxies", Chemical bonding. The Japanese seem to assemble a lot of mechanical items this way. I've seen epoxy shaft seals on precision shafts and bearings, obviously cast in place. There is not a hope of any kind of repair or maintenance on that kind of thing.Best Regards:
Baron J.
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20th Aug 2017, 05:19 PM #933Most Valued Member
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That's because we're a throw away society, but give it to Phil and he'll work out a way to fix it
Fantastic work you do Phil, most of us could only dream of a job like yours. Thanks for the pics, and the way you show us how to go about fixing the "problems".
Thanks for an answer Phil and Michael, it was just a thought.
KrynTo grow old is mandatory, growing up is optional.
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21st Aug 2017, 07:20 AM #934Most Valued Member
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21st Aug 2017, 11:44 AM #935Diamond Member
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21st Aug 2017, 12:00 PM #936
I don't recall ever seeing this method used with 2 points, but by sheer coincidence YouTube's Doubleboost did this in his latest video https://www.youtube.com/watch?v=l6DT1Epd65Q to check the alignment between his headstock and tailstock using a ruler.
Dean
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21st Aug 2017, 08:50 PM #937Most Valued Member
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Hi Kryn
I have no idea why I thanked you for the pics, I meant to click on thanks. Probably the swollen head I'm getting.
Hi Bruce
I have to admit it certainly is a dream job. It's a privilege getting to work on machinery of this vintage that's for sure.
We have to replace one of the shoes on the battery soon so hopefully I will get some pics of how it is done. It involves some woodwork.
For Baron
Here are the pics of the keyways that were cut into the 6" shaft with a shaper
Phil
Phoenix crankshaft keyways (9).jpg Phoenix crankshaft keyways (1).jpg Phoenix crankshaft keyways (5).jpg Phoenix crankshaft keyways (6).jpg Phoenix crankshaft keyways (7).jpg Phoenix crankshaft keyways (8).jpg
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21st Aug 2017, 09:03 PM #938Most Valued Member
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Thanks for the pics, shows what they were capable of back then. Re the thanks for pics, I have fat fingers to.
KrynTo grow old is mandatory, growing up is optional.
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23rd Aug 2017, 06:54 AM #939
Hi Phil,
Thanks for the pictures of the shaped keyway slot. I was a little surprised by how the tool had torn the metal in the bottom of the slot, rather than cut it in some places, however I could see no trace of that from the end of the shaft picture. Still I think that it is a brilliant fit and worthy of praise. I doubt that I could have achieved such perfection on the mill with a slot drill.
Forgot to mention, I noted the initials dotted into the base of the slot. Nice idea.Best Regards:
Baron J.
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16th Sep 2017, 09:47 AM #940Most Valued Member
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Hi Baron
I should mention that the rough keyway is for the flywheeel and not the disc crank. I'm guessing that the flywheel isn't as important as the crank though they are on the same shaft.
A little breakdown occurred on the large Phoenix engine on one of the drip feed lubricators. The needle that meters the amount of oil to the bearing area broke.
I pulled it apart and found that it had been renewed at a previous time and was not quite machined to the correct dimensions and consequently made it a bit weaker than it possibly should be.
A new one was in order.
Phil
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16th Sep 2017, 10:10 AM #941Philomath in training
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It does beg the question how though - I would have thought there would be comparatively little force on a needle like that and next to nothing that was not along the axis
Now that I find astounding. Perhaps you need to set up a crowd funding page to get the cash together if work won't stump up.
Michael
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16th Sep 2017, 10:37 AM #942Most Valued Member
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We used to have a bloke that loved to just hit the top of the 'acorn' to turn them off and sometimes they didn't line up with direction his hand was going and he would consistently bend the needle.
He's gone now.
Some things do confound me Michael as it always takes much much longer to set up the Dormac mill which doesn't have a quill. Raising the table just to drill a hole is most annoying.
I can assure you that there is no feel for how the drill bit is loading up doing it that way.
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16th Sep 2017, 11:51 AM #943Golden Member
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Thanks for the photos - they might provide the incentive to do something about a small pair of Chinese drip feed oilers I bought some time ago to replace the original wick oilers on the old Brackenbury and Austin lathe headstock spindle. When I fitted them one wouldn't turn off and the lowest feed rate of the second one is so high it empties the glass in a few minutes, so the old wick oilers went back on. I could have sent them back to the UK for a refund I suppose, but the return freight would probably have exceeded the value of the oilers. Another lesson not to buy cheap Chinese, but alternative small drip feed oilers in this size, from memory about 1" diameter with 1/4" BSP threads are surprisingly hard to find a anything like an affordable price.
Frank.
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16th Sep 2017, 12:14 PM #944Most Valued Member
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Definitely worth pulling them apart Frank as they quite often just need to be lapped with a bit of cutting compound. A guide machined up that fits the riser tube and allows the needle to fit inside it (like a custom bit of tube) is all that is needed and lap away.
Phil
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18th Jul 2019, 09:40 PM #945New Member
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i just want to say good on ya steamwhisperer for sharing your passion and knowledge before its lost for ever love ya