How To Install a Tachometer on a Lathe

Install the tachometer Hall Effect sensor and test unit on a Clausing 6903 metal lathe.
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[@outsidescrewball]

Nice build addition to the new power setup!

[@RRINTHESHOP]

Thanks Chuck.

[@ChrisB257]

NICE job Randy - an inspired solution. I still keep using my cheepo hand-held electronic deal but your idea there is just great. Super.

[@RRINTHESHOP]

Well worth the time Chris, they work great.

[@TomZelickman]

Very nicely done, Randy. Always good to know just where you have things set when you want to reproduce a process again. Hope all is going well! Tom Z

[@RRINTHESHOP]

Thanks Tom. Things are good here. I hope your new house and shop are coming along, alot to do before winter.

[@pgs8597]

Nice upgrade. I thought at the start that hole for the wire was going to be a real pain in the butt, but slotting it was a nice work around. Well done, Peter

[@RRINTHESHOP]

Yeah after some more thought things change for the better. Came out great and works great.

[@shawnmrfixitlee6478]

I have that same Tachometer on order from China . Been over a month now ! I sure love this idea on the mounting .. THUMBS UP!!

[@RRINTHESHOP]

They work great. Well worth it.

[@AmateurRedneckWorkshop]

Very well done as usual. Thanks for the video.

[@RRINTHESHOP]

Thanks Harold.

[@sharkrivermachine]

I like it, I will have to look into fitting one of my antique lathe.

[@RRINTHESHOP]

They work great Steven. Nice to know when you want to repeat cutting the same material.

[@mikenixon9164]

Very nice work Randy.

[@RRINTHESHOP]

Thanks you Mike.

[@eewhite25]

Randy checking on you guys lots of fire around your area. Stay safe my friend. Ed White from Georgia

[@RRINTHESHOP]

Thank you Bubba, All good here.

[@stargatefred]

Hello Randy. I have been looking at the news on TV. I know you are active as a volunteer firefighter. I just want to make sure you and your family are safe from all the devastation. My prayers are with all those affected by the fires in California. Bill from Seattle

[@RRINTHESHOP]

All good here. Our nearby fires are no threat and about out. It is the other parts of the state now. Thank you for your concern.

[@stargatefred]

Randy Richard In The Shop Good I'm glad you are safe

[@willemkossen]

Nice. I am planning to do the same with my woodlathe. Good to see how it can be done.

[@RRINTHESHOP]

well worth it, they work great, I have them on 3 lathes.

[@GregsGarage]

great looking rig RR.

[@RRINTHESHOP]

Thanks Greg.

[@rchopp]

Nice work as always...

[@RRINTHESHOP]

Thank you RC.

[@ROBRENZ]

Very nice Randy, enjoyed! ATB, Robin

[@RRINTHESHOP]

Thanks Robin.

[@jimzivny1554]

Nice upgrade

[@RRINTHESHOP]

Thank you James.

[@rwbishop]

Love the old time 'Chicken Head' knob on the control panel... kinda reminds one of Simpson meters. :)

[@RRINTHESHOP]

That is an old Baklite knob, good eye's.

[@rwbishop]

They're (for real) called 'chicken head' knobs... and still made in all sizes/colors, and maybe even in Bakelite. Check eBay and and all the usual electronics parts outfits... I heard a while back they're now the rage on rock band amps.

[@DigiConSoo]

nicely done!

[@RRINTHESHOP]

Thank you.

[@PhilsProjects]

cool Randy!b nicely done

[@RRINTHESHOP]

Thanks Phil.

[@SolidRockMachineShopInc]

Nice Job Randy. Steve

[@RRINTHESHOP]

Thanks you Steve.

[@TechNebulous]

Hi Randy.. Those meters can be setup with multiple magnets. The more you have the better resolution you will have in regards to your tacho reading.. Maybe a thought to ponder...

[@RRINTHESHOP]

I will a have to get a few thin magnet and see how much better. So far these have been +/- 5 rpm.

[@robertkutz]

randy looking good.

[@RRINTHESHOP]

Thank you Bob.

[@SteveSummers]

Hey Randy, is that some of your blood splashed on the left QCGB at 4:57 ??? LOL Great job and video. The Tach is nice to have, I would like one for mine.

[@RRINTHESHOP]

Probably, I seem to always have a small wound. These are very cheap on ebay, well worth it. I have one all all my lathes.

[@pauljones3866]

Nice installation for the Clausing. What did you used for the 9 - 12 VDC power supply for the tachometer electronics? I like the Hall Effect tachometer for ease of installation provided I remember check for the correct magnetic N-S orientation before gluing in place. By the way, a M12X1 thread is the one used on my old Unimat SL1000 lathe spindle and bought this size tap years ago for making parts for the lathe.

[@RRINTHESHOP]

I used a 9 volt dc wall wart, I mounted it in the control panel for the lathe. The thread was a bit of a pain, but worked thru it. I really like knowing the spindle speed on a lathe, great ref. for the next project. Thanks Paul.

[@pauljones3866]

Thanks for the info. I used your Hall Effect tach installation instructions I saw from one of your 2014 www.homemadetools.net articles and installed the same type on 2 of my lathes and published the setups at the same website.

[@craigs5212]

Randy, do an ebay search for a KSD9700 Temperature Controlled Switch order a normally-open one, say for 35 or 40 deg C and place it in series with you aux fan. For extra security parallel two in case one dies. Only about $1.27 with free shipping. Now your fan will only run when it needs to. Craig

[@RRINTHESHOP]

I have thinking about doing that, I have three spots I could use them. That way I could buy in bulk. Thanks Craig.

[@pierresgarage2687]

Wow, an older lathe going High-Tech... ;) Looks good... For you in the US metric is a weird thread whatever the pitch is, it starts being weird when it's called metric... lol

[@RRINTHESHOP]

That's right. Weirdtric that is the common term. They could not even get the conversion factor right, 254,, 234 would of been easier to remember.

[@pierresgarage2687]

Easy to remember. 1" is EXACTLY 25.4mm, Works for me... ;) The only negative point here is that the lead screw on my lathe is Imperial and I have to leave the carriage engaged when threading.,.. Got to practice and get used to translate instantly in your mind, takes a little time, though...

[@rwbishop]

Wish we'd gone metric eons ago; far superior; with the exception of the Celsius degree being a little big.

[@istvanmeissler2238]

rwbishop Imperial is better for most things except a case could be made for wood working and mechanics but machinists prefer imperial.

[@jimmilne19]

Smart solution. Where did you get the mag-tach item?

[@RRINTHESHOP]

Jim, ebay. just search hall effect tachometers, you can get red or blue displays. Just maters if you are color blind I guess. i like the Blue.

[@MrPragmaticLee]

Was any calibration required - if so how was it done. Enjoyed the video.

[@RRINTHESHOP]

No calibration. I have checked them and all of the ones I have used have been +/- 5 rpm or better, close enough for what I do.

[@1970chevelle396]

That's a great addition for the lathe.

[@RRINTHESHOP]

Thanks Ken.

[@zacharypogue1184]

Does the JB weld hold that magnet on pretty good? I am looking at doing the same thing on my car.

[@RRINTHESHOP]

Has not come off yet, been there a few years now. Thanks

[@zacharypogue1184]

@@RRINTHESHOP cool! I love watching machining! Good video!

[@BenButler1]

Great series. Curious as to why you run your cut off tool upside down.

[@DSCKy]

For one it lets the chips fall out easier so they don't jam.

[@OldIronShops]

Throws the chips downward

[@istvanmeissler2238]

Yes, why?

[@thomasutley]

Cutting forces push the tool away from the stock rather than deeper into it. Good for lighter weight machines.

[@RRINTHESHOP]

Well now for the real reason, not to say all very good comments. It is a left hand tool, this way I can get very close to the chuck when parting which is always best. This tool is a seco tool and works very well, I love it.

[@johnstrange6799]

Love it.

[@RRINTHESHOP]

Thanks John.

[@johnstrange6799]

Just got my tach kit in the mail today. :)

[@johnstrange6799]

What are you using to power your tach?

[@RRINTHESHOP]

I use old wall worts. Old chargers for devices. I used a 9 VDC output one in this project.

[@johnstrange6799]

Thank you. I'll follow suit on mine.

[@bcbloc02]

14:12 how come it still displayed 400rpm when it wasn't turning?

[@cmonster6]

bcbloc02 on mine there is occasionally a lag

[@NoelBarlau]

I think it has something to do with the "clear zero time" which is claimed to be 10 seconds on the product page. www.ebay.com/itm/4-Digital-Red-LED-Tachometer-RPM-Speed-Meter-Hall-Proximity-Switch-Sensor-NPN/251369593713?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D46673%26meid%3Df34a9d1d2324455c911b5af05ab0017d%26pid%3D100033%26rk%3D3%26rkt%3D8%26mehot%3Dpp%26sd%3D301487348110&_trksid=p2045573.c100033.m2042

[@RRINTHESHOP]

I will clear after a few seconds when stopping. I think they have a slight delay on some small amount of averaging to smooth out the reading, so when the spindle stops it takes a few cycle of the chip program to clear.

[@chucktipton9596]

What power supply did you use? I think I'm going to use batteries.

[@RRINTHESHOP]

Just an old DC 9 volt wall wart. I think any DC 6 to 15 volts will work.

[@chucktipton9596]

Thank you sir.

[@OldIronShops]

Kinda sounds like a worn-out harvester lol what is rattling so bad

[@RRINTHESHOP]

Yep, I think I found a lot of the problem the other day, in a video soon. Thanks Chris.

[@OldIronShops]

Randy Richard In The Shop can't wait

[@mikeysgarage3697]

She's a bit noisy eh? Last time I heard a sound like that I discovered a hole in the side of an engine.