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How it works
Sextant tap and see how works . Note hos mirror moves then plumb to the horizon
How sextant works gif
Here how sextant works
By davesmith1800 · #189 ·
Re: File /5)Charts_&_Tables/HARDNESSTESTER Hardness (3) (1).pdf uploaded #file-notice
*FYI? Background* I had check class 45 cast iron and would not fit in Rockwell tester. Rutland had a unit for none destruction testing I purchased and very simple . A 3/16 ball from ball bearings.
By davesmith1800 · #188 ·
Re: File /5)Charts_&_Tables/HARDNESSTESTER Hardness (3) (1).pdf uploaded #file-notice
Photo 1 of 3 different harness charts just uploaded
By davesmith1800 · #187 ·
File /5)Charts_&_Tables/HARDNESSTESTER Hardness (3) (1).pdf uploaded #file-notice
The following items have been added to the Files area of the [email protected] group. * /5)Charts_&_Tables/HARDNESSTESTER Hardness (3) (1).pdf (
By Group Notification <noreply@...> · #186 ·
Re: Build ideas in Navigation & History
It fun picking a time era for building . Most pick the the slot from 1820's to to 1950¡¯s and mostly engines and sundials. There a hole world full fun ideas for build . There who build using too of
By davesmith1800 · #185 ·
Re: Build ideas in Navigation & History
This is time line
By davesmith1800 · #184 ·
Build ideas in Navigation & History
*Building ideas* *& History* The history of navigation dates back to ancient times, with significant developments in various civilizations. The first part Celestial navigation, use of landmarks, and
By davesmith1800 · #183 ·
Re: My telegram channel.
My personal telegram channel is @JerryDurand My blog channel is https://t.me/Becoming_Russians But my blog is currently in partial limbo as I currently don't have control of it from the criminal
By Jerry Durand · #182 ·
Re: My telegram channel.
Did not know there was a telegraph channel. What is the Telegram channel? Dave
My telegram channel
A hacker deleted my Telegram channel, I've recreated it but anyone who had my telegram contact will find it marked DELETED ACCOUNT but it will still have any old messages in it. If you wish to re-add
By Jerry Durand · #180 ·
Sextant design & build
Designing a small BUBBLE SEXTANT & build . Here my first drawing of a Pocket Bubble Sextant. *Please comment* Dave Note PDF file is a clearer drawing
Add to files macking piston Ring, milling in lathe , gear cutting
*Add a few more pages on making* * *PISTON RINGS* * *MILLING IN A LATHE* * *MAKING GEARS IN A LATHE* * *BORE A ENGINE CASTING ON A LATHE* * *DRILLING A LONG BAR IN A LATHE* * *and more* * *See File on
By davesmith1800 · #178 ·
File /6. Rarely used Charts and tables/1) How to books and files/1 piston ring milling gear cutting and more.PDF uploaded #file-notice
The following items have been added to the Files area of the [email protected] group. * /6. Rarely used Charts and tables/1) How to books and files/1 piston ring milling gear cutting and more.PDF (
By Group Notification <noreply@...> · #177 ·
Please post good websites
This calculation for most mini lathes and mill https://www.cgtk.co.uk/metalwork/calculators/dividing https://www.cgtk.co.uk/metalwork/calculators/changegears/minilathe
By davesmith1800 · #176 ·
Re: Measure
Measure I need get that tool someday ?. I will add to my list of NEW YEAR RESOLUTIONS.? My best friend help with.
By davesmith1800 · #175 ·
Measure
By Jerry Durand · #174 ·
Re: My project thread
The cover not hard but not cheap. The best is use class 45 cast iron or better and use old one as a pattern.? Most foundries do not do this type work any more because of labor. I have made for new
By davesmith1800 · #173 ·
File /1A) How to run a lathe/how to run a lathe (1958 south bend lathe inc).pdf uploaded #file-notice
The following items have been added to the Files area of the [email protected] group. * /1A) How to run a lathe/how to run a lathe (1958 south bend lathe inc).pdf (
By Group Notification <noreply@...> · #172 ·
5 files uploaded #file-notice
The following items have been added to the Files area of the [email protected] group. * /6. Rarely used Charts and tables/Threading .odt (
By Group Notification <noreply@...> · #171 ·