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Re: Tip cutting a long small diameter shaft
Here is a follower rest.??
I always have lathe with one.?
If ever wonder how did tapper barrows.
They did in one cut with a follower rest and full length tapper attachment.?
The follower rest is setup on the straight round shaft and then tapper is turn in one pass.?
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Dave |
Re: Tip cutting a long small diameter shaft
This part made with two roller boxes , point tool and threading die.
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This is master and has red dikem?
This was used on aircraft hangar doors by thousands across America?
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The shaft on right side is machine 0.66929" [17mm] ±0.0001"? the threads are 5/8" NF on 3/4" Hex bar stock.?
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Tip cutting a long small diameter shaft
If ever need to cut a long small diameter shaft. A follower works or a roller box .
Like roller box but do use a follower rest too.?
If point the end of hex or square shafts a box or roller box will work great.
A box type is easy to make in shop too.
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Here is a roller box?
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Box Tool can use for watch size shaft in small. This easy way to cut under 1/32" dia?
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If need to do step shaft in more 4 pcs
You look at this . This box type
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Dave?
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Re: Pepair for Solar Storm
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Here history I found
Geomagnetic storm of 1859, largest geomagnetic storm ever recorded. The storm, which occurred on Sept. 2, 1859, produced intense auroral displays as far south as the tropics. It also caused fires as the enhanced electric current flowing through telegraph wires ignited recording tape at telegraph stations. On the previous day, British astronomer Richard Carrington of the Royal Greenwich Observatory had made the first observations of a white-light solar flare, a bright spot suddenly appearing on the Sun. Carrington noted the coincidence (but did not claim a direct connection) between the geomagnetic storm and the solar flare, thus prefiguring the discipline of space weather research.on?1859 solar storm. Carrington storm September 2, 1859 ![]() ![]() It is now thought that the active region on the Sun that produced the white-light flare also produced a fast coronal mass ejection (CME), a large eruption of magnetized plasma that subsequently produced the geomagnetic storm. Although CMEs are often associated with solar flares, the two can occur independently. Now today with your lathe, mill, power lines , internet , radio , television and telephone. Just think? ![]() ![]() |
Re: Pepair for Solar Storm
Thank you
Very inserting video?
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The earth’s magnetic field is very .
Like the ?Bermuda Triangle. Magnetic Compass goes nuts. I for got rock depost that does that.?
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I tell everyone to avoid the Nevada Triangle the pine trees eat aircraft. Light gets hung up trees and can see from ground or air.? Last data I had on triangle about 2 light aircraft crash? a month some of mountain are 14,000 feet.
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FYI I live inside the Nevada Triangle?
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Here gif on the ever shifting from 1590 to 1990.?
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Re: Pepair for Solar Storm
开云体育Still not all that big, but that's coming.? I don't completely agree with Ben but mostly do. I think the end result will be more like the CIA book "The Adam & Eve Story"main channel The Disaster Cycle summarized On 16-Apr-25 8:52, davesmith1800 wrote:
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Pepair for Solar Storm
We having a Solar storm tomorrow s big in 1859 burn down the telegraph stations.?
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https://www.samsung-news.com/articles/P9SpDASpaYModdQV5OOHjw-en-US?section=widget_news&action=news&tab=foryou&landing=news_detail&url=https%3A%2F%2Fwww.samsung-news.com%2Farticles%2FP9SpDASpaYModdQV5OOHjw-en-US%3Fsection%3Dwidget_news&id=P9SpDASpaYModdQV5OOHjw-en-US&pub_id=independent.co.uk&pub=The Independent&pub_logo=https%3A%2F%2Fnews-image.samsung-news.com%2Flogo%2Fcustom%2FIndependent%2FMaster_Masthead_1.svg&theme_color=#da3335&referrer=share-news&title=A solar storm could hit Earth tomorrow. Here’s how it could affect you&rss_url=https://www.independent.co.uk/space/solar-storm-geomagnetic-hit-earth-b2733930.html?utm_source=snews&utm_medium=referral&img=https://image.samsung-news.com/api/v1/image/static/w=1600,h=1600,face=true,style=SQUARE/https://static.independent.co.uk/2025/04/15/21/39/GettyImages-2177158636.jpeg?width=1200&auto=webp&trim=0,0,0,0&pub_time=2025-04-15T22:16:25Z&ed=en_US§ion_type=for_you&category_id=technology_science |
Sextant
Sextant how too found on internet some may like? reading?
Method?1
Method 1 of 7:
Finding True North in the Northern Hemisphere
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Method?2
Method 2 of 7:
Finding Latitude in the Northern Hemisphere
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Method?3
Method 3 of 7:
Finding South in the Northern Hemisphere
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Method?4
Method 4 of 7:
Identifying South in the Southern Hemisphere
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Method?5
Method 5 of 7:
Using Star Navigation in Both Hemispheres
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Method?6
Method 6 of 7:
Finding East or West at the Celestial Equator
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Method?7
Method 7 of 7:
Using Any Star’s Position to Navigate
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Lathe turret
Here photos of a lathe turrets.
They great for small parts on projects.?
Most time you see a drill bits sticking out.?
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If tool right it is a great aid .
3 position works the best .
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Shaft work
1. BOX TOOL for turning down outside of shafts?
2. A threading die?
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ID work?
1.? CENTER drill
2. Drill?
3. TAP OR REAMER.??
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Dave?
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Navigation Columbus Curse
Columbus and Celestial Navigation used a Astrolabe and Dead reckoning tools.
Just think of taking a curse with Columbus in 1492
![]() . At this time there was no real time keeping for Longitude. ![]() By this time they figure out latitude using a ASTROLABE and the sun move 23?° up and down in 365 days. ![]() The main way for Longitude was to use Dead Reckoning a hourglass and rope with knots at given spacing and board at end and a Compass. ![]() ![]() They plot out on paper there course. If they was off on ladatude correction was made. Depending the group measuring the spoed and number of course changes made per day and cross current errors. Remember at this they did not of navigating on a round ball aka earth too. ![]() ![]() This work very well till we had time accuracy keeping and one spot on earth? ![]() Here is the simple way of finding LONGITUDE. Solar time different from your location and Greenwich Time in hours?X?15 is LONGITUDE?. You are?10? hours?in time from Greenwich times?15 = 157.5° or 157° 30' A sundiel could be used for time . ![]() LATITUDE Some Astrolabe has a disk to adjust for the day year . Depending on the that mader of the astrolabe is accuracy. Most re very good. ![]() A sextant takes in more factors but still at end simple except you chart for each day and you correction for very accurate angle |
How accrucy can get on open ocean
Here one how Accurate can is a compass.
This helps
The resolution on a digital component is 0.1° .
Using solar north a simple way of finding Longitude gives a location to at the Equator of lessthan 7 NM. The closer you get to poles greater accrucy.
This using a simple sundial solar noon only and very large compassion.
At 35° latitude accrucy within 3.9 NM .
Accrucy on Ladatude using a veneer type sextant with a 6 minute veneer is 6.8 miles.
On 6 min veneer can easily read to 3 minutes or 3.4 miles.
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Dave
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Re: 1903 Ohio shaper in operation
This was the first actual job on this mill was actually for this mill.
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The vise was a horrible import that was rendered into a useable one with a bunch of mods.
The jaws were surface ground, the moveable jaw was modified to to tighten the tolerances, a shoe was machined for the moveable jaw and a bronze thrust button was machined for the closing screw.
I added three hold down bolt homes to the front of it, machined registers on both ends of it and milled the hold down slot on the main casting to fix it to the table with a clamp below the top surfaces of the vise.
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