"i've got a lathe - I can make that thread." Most excellent attitude.

@svenschlenkrich

4 жыл бұрын

Basically right, but this threads is far too loose for a precission instrument. Might work, but that's not the way it should be done. measure twice cut once.

I'd have to agree with just about everyone, next is a camera adapter, cause' I wanna see too! Good video, I enjoy making something work also.

Brings back memories. Fifty years + ago my first job was at the NPL, the UK’s standards laboratory. I worked in metrology division and spent many hours looking down H & W autocollimators.

Looks nice. One suggestion for learner turners watching: it would be better to have done the boring before the parting, as it would have avoided re- chucking. Two problems with re- chucking this part: 1) you lose concentricity 2) on a thin walled part like this a 3 jaw chuck will crush it out of round. Then when you bore the inside you make a circle, and when it relaxes when you unchuck it, it becomes a rounded off triangle inside. Not ideal. If you accidentally part it off forgetting the boring, it should be re chucked in a collet. If you don't have one big enough you can make one by splitting a thick bush that fits the od and holding THAT in the 4 jaw and dialing it in concentric. Order of operations fore thought could avoid all this though.

@cschwad559

4 жыл бұрын

Yeah, I couldn’t figure out why he didn’t finish the whole thing before parting.

Echoing just about everyone here, I also suggest getting a surplus 90 deg adapter for the eyepiece that has a camera adapter coming off the straight through path. I've seen such rigs used with microscopes.

Lots of UK threads are at 55 deg. not the 60 of the USA....a brilliant job showing just how versatile a lathe is for even intricate work like this.

I have never used a lathe but I have used a drill press and electric hand drills for almost 60 years. I almost had a heart attack when I saw your chuck key still in the chuck when you went to start the lathe at 10:27. lol

What would be REALLY cool would be to also manufacture a bracket you could mount a GoPro or similar camera to that you could remotely view from your phone or other display whilst making adjustments!! Also, Cutting an internal o-ring groove might be a simpler solution to using a set screw as well as providing some lateral adjustment and limit vibrations. Well done, as usual.

Don't let "Bailey" see that key in the Chuck at 10:31. Great videos. Thank you.

That autocollimator is an awesome device - I'm really interested to see it being used. Thanks Keith.

This is a fascinating and inspiring video because I often have needed special adaptors for microscopes. I cobble things together using available off the shelf parts, but this is a new way for me to think about this. Thank you Keith!

Very fine! Leitz is one of the most appreciated brands when it comes to optical equipment. Dont forget that an autocollimator needs a pinhole lightsource for doing its job properly. So you should make a cap for your little handlamp with the tyniest hole in the center you can produce. So you simulate a star. When using the autocollimator dim the light in your workshop.

@xenonram

4 жыл бұрын

Never heard that before. Granted, I've only seen an autocollimator in use one time, several years ago, in one of Tom Lipton's videos.

@xenonram

4 жыл бұрын

@UCbdcS8Wz9qFQl3NgCf-QRiw Sorry, I was more thinking you were talking about wearing a headlamp and turning the lights off. I interpreted it wrong, my bad. Thanks Stefan, that paper you linked is quite interesting.

It is amazing how tiny those threads are and you can made them with scraps laying around the shop. Thanks for sharing

This was great to see! That brought back memories of being in the Navy, I used to use an autocollimator to align the aircraft Radar, HUD (pilot display), gun and the IMS (internal measuring system) computer system on the aircraft. We had to attach a special alignment frame to the A7 I worked on. It allowed us to get everthing that was critica and aligned properly which allowed the pilot to be spot on when they flew, targeting and tracked the aircraft over mapped areas. It was pain to set up but, it made a big difference to the pilot. Think of it as a good front end alignment on your car. It allowed everything to work better.

Leitz pronounced "lights", super high quality German optics manufacturer. Nice job.

Thank's for the videos Keith. They are so diverse that I never know what you will put on next! Every one of them is a fount of knowledge that we can learn from. Don't change anything Keith, just keep em' coming.

Leitz (pronounced "lights") is the manufacturer of Leica cameras and lenses here in Wetzlar. Together with Zeiss they are the top of the line optical manufacturer worldwide.

After you get your planer adjusted to within half of a gnats whisker you are going to be unable to move. Deflecting the floor will cause a need for an adjustment, and then moving to the end of the planer will cause a need for another adjustment, and so on. Sometimes you get more accuracy than you can use, want, or worry about. Don't over think the problem.

How about a camera adapter? Save all the kneeling and bending down when it comes to using the instrument.

@davidgagnon2849

4 жыл бұрын

Are you talking about an angled viewfinder?

@davidgagnon2849

4 жыл бұрын

There used to be a gentleman named Steve Grimes that had a machine shop that made all forms of lens adapters that couldn't be commonly found. He also fitted vintage (and newer) lenses into shutters for camera enthusiasts. He passed in 2003 but his business is still up and running.

@stefanrichter9162

4 жыл бұрын

Alternatively you can make a 90º knee eyepieceholder with an old prisma from a cheap binocular you cannibalize.

@thomasmccourt215

4 жыл бұрын

There are also microscope eyepieces that can link to a laptop . 100 euros buys one of reasonable quality , a handy piece of kit in a lot of scenarios

@googacct

4 жыл бұрын

I have mounted hobbyist drone cameras on microscopes. The advantage of a drone camera is that there is no display lag compared to usb camera. Also you can use a wireless display.

Ready to go Lets see it work. It has a degree of accuracy I wouldn't need for anything in my life.

You have inspired me to start my own KZread channel so danger beware know I’ll kidding aside I really am inspired by you I’m getting close to retirement and I think I found my passion your passion for what you do is truly inspired me and I really am starting a KZread channel my name being the name of the channel .I think you

Keith Rucker I'm a retired engineering surveyor living in Metro Sydney Australia. I found it interesting with the modification you did to fit the Leitz (as others have said "lights") microscope lens (German) to the Hilger-Watts Autocollimator (UK). As you said Hilger-Watts is no longer in business. Leitz & Wild instruments (Swiss) in more recent times were purchased & amalgamated into the Leica group. All these makes go back to times before WW 2. Countless engineering projects around the world were built using Wild survey instruments & others like Hilger-watts. They made theodolites & other survey instruments. Leitz is well known for microscopes & optical laboratory instruments as well as cameras & binoculars. Many instruments are still made but under the Leica brand (German) using certain technology developed originally from Leitz & Wild. Leica has outlets around the World including the USA. It's like machining, could you do your job correctly without verniers, micrometers, dial indicators, rulers, squares & all the other measuring devices ? Hardly likely ? Many medical, engineering & criminal break throughs (forensics) can be directly related to these European instruments (the hidden heroes so to speak).Of course these days computers have changed everything. Cameras are digital, laboratory microscopes are high tech & survey instruments use GPS & laser measuring technology. Tapes don't get used much. Even levelling has changed. The stave (the big ruler graduated pole) can be bar coded. So no need to read it just point the expensive bar code level unit & it gets read & recorded,the newer models auto track.. No mistakes as long as the level instrument is set level but that's taken care of because it won't read if not level & a warning buzzer sounds. Even a trained monkey could do it (almost ?). With the Hilger-Watts Autocollimator, you said it had an accuracy index of 0.2 of 1 second of arc. So that's 1/5 of 3,600 seconds (60 minutes x 60 seconds). That's extremely fine measurement. Think of your high school geometry set in particular the protractor. Say each degree is 1 mm/1/16 inch apart (approx.) You would need a high powered microscope to do this but divide that 1 mm/ 1/16 inch into 18,000 parts (1/5 of 3,600). That's the accuracy we are looking at here. So on over a 48 inch table distance (4 ft/1.2 meters). The accuracy would be difficult to measure at 0.000047 of 1 inch = 4.7/100,000 of 1 inch. Like I thought 1/10th of 1 thousand of an inch was very good & this could be over 5 times more precise than that. Very impressive. For accuracy temperature would be a significant factor. 20 - 21 C/68 - 70 F area would probably be about the ideal temperature ? With the view through the lens you could try using your camera. Surveyor Jessie Koslowsky of Round Earth YT debunking Flat Earth false theories fame, Jessie used his camera on the Wild theodolite lens & got some images from it. The lens eye piece is virtually the same as the one you have. So you should be able to get some images ? These days maybe you could buy a camera or adapter to fit ? If the camera you have shows the image then maybe that's all you need ? Probably when using the Autocollimator you could have a seat of convenient height ? I notice near the eye piece lens there is a graduated scale, perhaps the original had a pointer on it ? it's a shame that the original got lost ? *** LATE MAIL. On line there's a lot of info. on the Autocollimator. Even on You Tube there's a video of a guy with a camera through lens linked to a computer & he's using that to take his readings plus others. OK that's my bit of info., so cheers from me.

@rupert5390

4 жыл бұрын

greetings Hugh - Gerry from Vic - just aquired a lab full of vintage 40s & 50s surveying instruments and equipment from Melb Uni some of the pieces are magnificent - I'm a collector of all things mech and tech - any chance you looking at some photos and advising what the bits are - cheers.

@hughmoore810

4 жыл бұрын

@@rupert5390 Yes I'll have a look at the things you acquired & try & ID them ? How do you want to send the photo's ? email maybe ? or via You Tube. ? A bit surprising the Melb. Uni got rid of some vintage survey instruments & equipment, as they should have historical significance ? If you want to use email let me know & I'll send you the address.

@rupert5390

4 жыл бұрын

I agree that is the case as there seems to be a number of inclinometers (for example) that date to WW2 - email would be great - many of the bits of gear are electronic -electrical I love then as they are that magnificent british made 30s40s/50s era - they got rid of a number of theoodolites (I GOT ONE ) that seem to be beautiful pieces etc etc I could rabbit on for ages - I am on a deluded mission of saving as much of the technical history of australia from the scrap mongrels as I can. @@hughmoore810

@hughmoore810

4 жыл бұрын

@@rupert5390 You can send me your photos to my Yahoo address = hdmausguy@yahoo.com.au Make sure they are taken in good light (minimal shadows) & give the model number or similar. Get close ups of the eye pieces & the tangent wheels (adjusting knobs to set the degrees & the instrument & any others you think relevant. Did you get any tripod(s) ? Older ones are usually timber with some metal at the top for the instrument & at the bottom where the legs push into the ground. Timber is preferred as the expansion is minimal. Old timber does wear out & often needs replacement especially where the pivot points are. ? Many later manufacturers supply cheaper aluminium legs (as an option), but they do expand & contact more & can affect the accuracy of the survey. Older type optical instruments had inverted images as the theory back then was the less lenses the less distortion, particularly in doing star/solar observations as the atmosphere does affect the accuracy. In more recent decades lense technology improved & more modern instruments had one more lense in the telescope which then had the image upright. Inverted images took some getting used to as putting someone on line was the opposite way to what the image showed. As in go left in the image but actually the assistant had to go right to say put a peg in the correct place. There's plenty on line about various makes of instruments & I'll try & link some info. for you subject to the photos. ? Measuring goes back a long way. Chains had 100 links in them = 66 feet. Chains were made like that as they couldn't make long lengths of wire at that time. Chains became inaccurate as they used to wear & get clogged with mud & rubbish but an inch or two didn't worry people 200 years ago. All this relates to 1 acre in the UK (the amount a farmer could plow with a draft horse in 1 day). Then you have chains & furlongs. A cricket pitch is one chain long (66 feet). That's why many housing blocks in the older times were 1/4 acre. Later on small section flat steel strips (about 3 mm wide & 1 mm thick) allowed the manufacturer of the surveyors chain. 300 feet or 100 metres then became the standard. They were very accurate & had brass joiners every 10 feet or 3 metres with a fine chisel mark accurately marking the distance. On the front of the chain there was a leader = a graduated tape of either 10 feet or 3 metres. That way you could measure any distance accurately up to 300 feet or 100 metres, accuracy could be 1 mm or 1/10 of 1 inch, there was a spring balance used as well at the standard makers tension. There are adjustments for temperature & sag if not measuring on a flat surface. Then along came Bessemer's blast furnace technology in the 1860's. This then allowed continuous lengths of wire to be made cheaply & then the "dreaded" barb wire with many USA western movies made about them (the good old range wars).In the convict days late 1700's & on that's what was used. Many streets in Australian cities & towns are multiples of 100 links/chains, as are stock routes. Many university survey departments & museums & surveyors have old survey. equipment on display. In that department you are not alone. A lot of it will be a learning curve for you. Comparing what's in use today with GPS & Total Station theodolites to what it was like 100 - 200 years ago is so different. What a team of 5 men could do back then in 5 days can easily be done by 2 men in 2 days. A bit like comparing CNC machining to old school workshop machines.

@rupert5390

4 жыл бұрын

@@hughmoore810 No worries hugh some of the gear is from the civil engineering dept. so may not be surveying as such but you'll know better than me first instalment en route.

It's very helpful when you show us how you use the controls on the machine. Very helpful. Thank you.

Very Nice - Job Well Done Keith. Gary 76-Year-Old Home-Shop-Machinist. I wish I was your neighbor. You got fun toys...... Lance, I wish I was your neighbor too.......

Keith, if at the midpoint of your ways is parallel but low, the mirror holder will read as if there is no angular deviation. This will not tell you how far the ways are out of parallel from where the autocollimator is setting. I think a borescope would be more useful to determine way flatness. Borescope targets simply indicate how many thousandths off center a particular spot is.

"Leitz" is pronounced "Lights". You may want to consider a 90 degree prism before the eyepiece so you can work comfortably standing up. A fine job, as usual.

Very nice.. Looking forward to your 90 degree adapter with the built-in mirror for easier ergonomics... 😉☺

@R.E.HILL_

4 жыл бұрын

Hey! I got my wish fulfilled, you took my advice.. 😉 And a nice video you made too... 😁👍

Thanks Keith

Always love to watch your videos. I like to get things that need a little repair or a missing piece and bring it back to life that's makes the hobby a lot of fun.

Enjoyed Keith! ATB, Robin

Hook up a high def webcam or digital camera to drive a tablet/laptop display. That way you won't have to bend and flex at odd angle over machines to take readings and we can see what you see. Plus, it'd be easy to record and import into the videos.

Great job .... Your Leitz eyepiece has a top pedigree - Leitz makes the Leica cameras

Great repair to a piece of precision equipment at a nominal cost. Thanks for sharing your work.

That Leitz eye piece is a good find.. Leitz and Carl Zeiss are probably some of the best optics from Germany or any where in the world.

I see new tool fun in the future!!

@lewiemcneely9143

4 жыл бұрын

Needed Baily to eyeball it.

THANK YOU...for sharing. Watched and very much enjoyed.

Nthed on the camera adapter - your joints and your eyes will thank you. :) They make some nice tiny wireless cameras; I've seen them used for HO-scale cab-rides and such.

Works like oldschool servaory,s transit nice tool

Interesting video, something new. P.S. Leitz is pronounced "lights".

@scottr939

4 жыл бұрын

@@mechanicalTurk0 so if South Georgia was in Germany it would be pronounced Sothe Gorjay? lol

@scottr939

4 жыл бұрын

@@mechanicalTurk0 And FWIW, in English, when there are two vowels together, generally the *first* vowel is pronounced 'long' - hence 'leetz'.

@brianpoi5117

4 жыл бұрын

In German, when the i and the e go a-walking, the second one does the talking.

@scottr939

4 жыл бұрын

@@brianpoi5117 In American English - "i before e except after c" (with a few exceptions that nobody can remember, lol

@etheroar6312

4 жыл бұрын

@@scottr939 Several years ago on KZread I saw a documentary that claimed there are more exceptions to that rule than there are rule followers. FWIW.

Looks good! Might want to think about making a 90 degree adapter for the eye piece. It would make it so you only have to look down and not have to lean down and then tilt your head sideways

Interesting piece of equipment. But since I have never ever seen such an item, I would love to see how it is used. So anything you can make to show us what you are looking at would be great. Also introduce us to your furry companion. The dog looks cute and we would love to see him or her on camera more... Thumbs Up

Nice job on the light source replacement.

Very cool! And looking forward to learn more about the Autocollimator.

Second the Camera/ Cell phone adapter instead of the MK I eyeball...

Please post a video when you figure out how to measure with it.Great job on the adapter.

You are the man, wow nice job

Nice precision lath work. Cool video mate

Another great video Keith. Is there anything you can't do? It's always fun to watch and learn. Keep the great videos coming.

Great work! 👍

I was going to suggest the 90 degree adapter but I like the idea of using a camera on this one and not have to bend over at all. That arrangement would give the most flexibility in use.

Great job.

Beautiful work

Beautifully done!

Leitz, (pronounced "Lights") also makes the famed Leica cameras. Thanks for the video. See you a the Bar-Z. Jon

Nice fix. Thanks for the video.

As others have said what about a right angle eyepiece, many camera makers supplied them, i have one for one of my Pentax for example. Better watch out, the Lipton will be after that bit of English precision as he collects H-W. Just a small point. that thread is probably 55 degree with rounded point (Whitworth form) not 60 with a flat. Normally you can get away with a mismatch but with such a fine thread it might be worth thinking about if you have to make any more even on such a lightly loaded part.

@DIYTAO

4 жыл бұрын

Fine pitch esoteric (old English) threads can be pain to match. They had way too many 'standards' and mismatch can damage original part.

@littleworkshopofhorrors2395

4 жыл бұрын

@@DIYTAO to the metric guys Unified threads are esoteric😉 but yes deciding what the thread form is can be a pain.

@DIYTAO

4 жыл бұрын

Brits didn't use Unified at that time (my guess collimator is from 1950/60). If those threads resemble any standard it'll most likely be an BSW/BSF variant (55 degree Whitworth). But since many optics companies had their own thread it can well be almost anything.

Now it needs a nice oak case to keep it safe and organized.

Cool instrument! Good job!

brilliant

hi Keith 40 threads to the inch are model engineering thread used here in the UK

Columinating mirrors were used to measure the speed of light by Michealson and Morely in the early 1900s.

Nicely done! And shiny too! 😋 Thanks.

Nice job. Thanks.

Why do you not complete all turning work at one setting in the chuck ?

Make an eye piece to mount a go pro so you can film your progress? College taught us CSx4/Diameter. Brass is 400 so on slightly over an inch. You should be able to turn that brass at 1500 rpm.

WELL DONE , LETS HAVE A LOOK THOURGH IT .

I'm a bit surprised the threads weren't Whitworth. Possibly they were and that's why they were a bit loose.

FYI Leitz is the parent company of Leica cameras. Or was subdivided into it.

Excellent 🇬🇧

Correct me if I'm wrong but the british use a 55 degree threading tool, maybe that is why it's slightly loose

.2 arc seconds over a 10ft span... you're going to have way more scope than gun when you get to it. Also, I think you'd be much happier with a light source that is incandescent. White LEDs are produced with a wider band gap and to get the output, you have to spread the source over a larger emitter. A fine filament will give you a narrow source and better resolution on your reticles. A simple maglite body with a Xenon bulb will make your adjustment view cleaner. If you really want to get fancy you can build a block to hold the lens hood and turn the body to focus your output.

@bufordtjustice4362

4 жыл бұрын

I agree. I worked a few years for a construction company in the survey dept. We mostly did optical alignment and 3rd party inspections. Our tool of choice was a wild t3. It required a lightsource and led flashlights were horrible for the task. The old mag lights worked very well.

A 90 degree mirror adaptor might make that a lot easier to use - you can build it at the same time as the camera adaptor ;)

I thought you would have learned by now that you NEVER cut to the numbers in the book when cutting threads; you’re guaranteed to have a sloppy thread if you do. Like baking anything in the oven, NEVER bake to the time on the box or you’ll have a burnt or dry item, guaranteed!!

You might try adapting a USB microscope in place of the eye piece, or a microscope with a built in screen. They are readily available and low cost. I use a microscope/screen combo on a magnetic indicator base to see incredible detail on my lathe when turning something very small. Maybe a webcam would work?

matt paint in the eye piece may help like telescopes and cameras use

Would Love to see how it looks like through the lens :)

Try to find an eyepiece with a 90-degree prism. Tour knees will thank you :). Another option is to mount a camera directly onto the autocollimator.

Very cool!

F-ing awesome you the man Keith

looks like something from a small camera, we use them all the time at work but I have no idea what the mount is called (and there's of course 2 or 3 versions cause ... camera gear) but its the same approximate size and threading

Always interesting. Thanks for what you do. I confess I’m not familiar with use of the device. But, is concentricity of the eyepiece to the barrel of the instrument at all critical? (Loose thread engagement) I suppose that, in a given plane, all you are looking for is relative difference, shot to shot. What impact would potential non-concentricity present when you rotate the barrel 90 degrees? Again, well done, and thanks.

@ShainAndrews

4 жыл бұрын

Parallax

Watch out for weird thread angles on old British gear. That eyepiece was likely 55 degrees.

i'll add my 2 cents. I'd find my local lab supply place and ask to see microscope eyepieces and if that fails my astronomy group. Those eyepieces were standard size I'm sure of it.

The accuracy of the Autocollimator should be specified at a specific temperature as the optics will expand and contract with changes in ambient temperature.

@billprudehome9304

4 жыл бұрын

@Fester Blats Refraction: light waves do not reflect off the surface of a mirror they reflect off the back of the mirror and the light refracts through the glass of the mirror and any other optics within the device.

Did you try checking telescope eyepieces? 1.25" is a standard size. Also, you could just buy an off the shelf diagonal, camera adapter, etc.

And you built an autocollimator mirror sled for your planer. I can guess that you plan to use this autocollimator first thing to align the inverted v-tracks absolutely level.

Beautiful! No extension cords!

So......now we know: You REALLY bought the planer so you would have an excuse to play with your collimator......just as I suspected all along.

@kevinreardon2558

4 жыл бұрын

For a truer sentence: You REALLY bought the ______ so you would have an excuse to play with your ______. That is what is called a tautology.

Back in the saddle again.

You know you can get some metallic paint at hardware stores that would match original paint, paint the brass and nobody would know it wasn't original. As for tiny screw it would be a little flat slot one. I would still like to see videos of the milling machines all cleaned up proper with new paint put on . Of course Kieth would most likely start grinding and scraping the ways. How is the 28 Monarch coming along?

Now that you have 'kicked the tree' by making that eye-piece and described in detail about the Autocollimater you are going to get several comments, especially from your UK viewers, from people who have one, or who know of one o the original eye-pieces. Doesn't it always happen that way!!

enjoyed

Why was the brass part singing so loud on the lathe? The boring bar was very short and the part was directly in the chuck. I can't picture where the vibration was coming from.

Hi Keith, when do you think you will have an young apprentice. Also enjoy seeing shop puppy and shop kitty.

21:42 What color lipstick is that on your forehead?

@DeutscheReichsbah100

4 жыл бұрын

I have seen that tow, probably a kiss of one of his machines telling him how match thy love him

Sounds like Keith has been watching "Clickspring". But his toys are quite larger.

Could have left the oD larger and put an o ring grove internal to hold the eye piece Better still got clickspring to make you a 90deg eye piece holder

The size is probably Wentworth British standard

10:18 Keith trolling the trolls. :-D Awesome.

@ShainAndrews

4 жыл бұрын

As long as he removes it before starting the drill it isn't an issue.

@LambertZero

4 жыл бұрын

you can clearly see that he did not.

A very interesting novelty device. Just guessing, .2 Arc Seconds equates to what? Trillionths of an inch of deviation? Is there a lathes, mill, shaper or any other tool in your shop that can adhere to that tolerance? Seems to be setting goals that are unobtainable. Nice novelty item, but not really applicable to a machine shop. Thanks for sharing.

@DavidKirtley

4 жыл бұрын

That's how they calibrate surface plates. Surface plates are in many machine shops. Usually people pay for people to come in with their autocollimator to inspect them.

@lillsmeden

4 жыл бұрын

If my math are correct, it adds up to about 0.001 mm on a radius of 1 meter, so pretty much the accuracy you would be looking at for precision made surface plates.

@JohnSheerin

4 жыл бұрын

With a 5 inch long mirror base (what my Hilger-Watts is), you get a resolution of about 5 millionths of an inch height change for one reading. In reality it's tough to repeatably measure to 0.2 arc seconds, so it's somewhat more than that. If you double the length of the mirror base, it doubles the minimum resolution, so 10" base = 10 millionths resolution. But the general idea is that your measurement tools are ideally capable of 10x more better accuracy / precision than the part you're trying to measure. Given that error accumulates when you take many measurements along the length of a surface, Keith could easily be in the range of +/- 0.0002" by the end of measuring along his planer's rail. So this level of accuracy is not really overkill for what Keith is trying to do.

@CalPil0t

4 жыл бұрын

Using some aviation math and distances, the 0.2 second works out to about four inches at 60 nautical miles. One degree at 60nm is about 1 nm (6075 feet).