Drum Switch & Electric Motor Wiring - Myford Lathe Restoration Part 11

[@orsummerton]

Would you recommend buying a Myford ML7? Looking at buying my first lathe and I'm used to working on a Emco Maximat 11 and a Swedish version of the South Bend named Blomqvist BSN600. But there are currently a few Myfords for sale in my area that have peaked my interest.

[@GeoffreyCroker]

No. Not if you want something that works like an Emco 11. Myfords are great if you want a little lathe to play with - lots of accessories - and much better than a cheap new mini lathe. But If you have space, for the same money, you can get a larger boxford or emco, which are both really common and easy to get parts for etc. The extra size is going to make them way more rigid. If you do want a myford, try and get a Super 7 with a gearbox. The Super 7s have 'modern' headstock bearings instead of old solid white metal bearings like the ML7 which drip oil everywhere - and a gearbox is so much better than change gears. I'm not saying I'm an expert or that there's anything wrong with a Myford ML7 - but that's my shopping advice.

[@CypherAod]

@@GeoffreyCroker Myford 7s are also ridiculously expensive compared to less "pretty" lathes like Boxfords and so-on.

[@tutekohe1361]

“Piqued” rather than “peaked”

[@munkeyWITHbeard]

Boxford are clones of the south bend 9 too, much heavier built and precision taper roller bearings on the spindle, loads of interchangeable parts between all of the clones except the smart and brown sabel which has a different bed profile

[@ScarredRealist]

Everything the venerable Mr Croker said; if I were doing it again I'd at least wait for a Super to come up, but I should have gone for a Boxford, or even a mid-sized Colchester. Instead I've got two Myfords. It's a sickness. There is no cure. Don't fall into the trap...

[@carp614]

Just this morning I was thinking, "Mr. Croker hasn't posted in a while. I miss the Rover project."...and this is what I got. yay. glad you are well sir.

Not gonna lie. This was the first lathe restoration series on YT that influenced me to buy my first lathe. Still enjoy the saga ;)

[@GeoffreyCroker]

Thank you Ca Lem 👍👍

[@pedroernestobraga]

Me too, this series inspired me to made my homemade lathe following the myford project cz this video is fully detailed

[@davidbrown8365]

Animations and sounds effects - pure dead brilliant! And that depth of cut.....

[@HandToolRescue]

Yes! Do a Part 12 where you just add small rubber pads to the bottom of that housing.

[@GeoffreyCroker]

I think I will turn that into a 100 part instagram story 😁

[@HandToolRescue]

@@GeoffreyCroker It's the only way...

[@perrydear]

Great stuff! Thanks

[@soodonym]

I paused the video to write this comment. I experienced great pleasure watching watching you put the bushing over the shaft and then the pulley... Not creepy... It was just so satisfying.

[@ShainAndrews]

I've been driving that behavior out of my nephews. Oh that's so satisfying....

[@johnfisher747]

Always a relief when the smoke stays inside the wires likes it's supposed to 👍

[@johndehoog5567]

Outstanding!!! Framing, lighting and focus are out of this world. Top Drawer! As usual dialogue complete with puns, accent, sarcasm and humour are sweet. Thanks for sharing.

[@ronkellis769]

It took seeing how you did this for the reversing rum switch to make sense! Thank you. And also others safety warnings. On the wiring and these drum switches. Best to install a double pole double throw to the motor. Meaning when the switch is "off" no circuit at all goes to the motor. Then use only the top 4 connections for motor reversing. Otherwise one leg to the motor, the jumper connection 4 & 6 to the motor is always "hot" even when the reversing drum switch is in the off position. Most big button on/off switches are DPDT and you can get DPDT that are like wall switches that here in the States will fit in what we call a surface mount box or old work box. Thanks again for your explanation! Ron

[@orestisnarliotis7256]

Thanks for giving me another way to procrastinate on my Spanish homework lol. I just got around to actually making the motor on my lathe run, now I just need to wire it, and watching your videos has been pretty motivating, so thanks mate!

[@dartysengineering7275]

i have 4 hour test tomorrow morning and i should learn, but this indeed doesn't help! and fun fact, today i took apart my lathe motor because it has bad bearings... must be a coincidence ;)

[@GeoffreyCroker]

De nada

[@Mjc103]

Maybe the most underrated content on KZbin. I so appreciate you not holding your camera arms length away for 1/2 the video. I for one like the POV of work with your voice over explaining your tactics. Bravo Sir from Fort Worth Texas. Post more!!

[@NavigatedChaos]

This is actually the video I needed with the humor, voice, work. This helped.

[@fluffchucker13]

@Geoffrey Croker … I found this extremely helpful as last week my motor shorted out scaring the 💩💩 out of me. So I have had to start stripping it down to get rid of the original rubber coated cable, to replace it with better quality. I took photos of the switch to help me with the rewire, but now I can do screen shots and print them, many thanks 🙏

[@ianbrown4242]

Seeing as I bought a Myford ML7 purely so I could rebuild it using your series as a guide, this update really, really thrilled me.

[@BlackCoinCrypto]

This is an absolutely awesome series. I just picked up one of these lathe over the weekend. This video series has been very useful to get the old girl working.

[@rpederse]

This was fun. Thank you, Geoffrey.

[@GeoffreyCroker]

Glad you enjoyed it 👍

[@tleg6969]

Your videos are such a treat!! Thank you for all your hard work in putting them together for us.

[@GeoffreyCroker]

Thank you 👍

[@ScarredRealist]

I'm glad it's not just my belt guard that rattles .. parting off makes it jump around like a mad thing; makes quite the racket when it starts catching the back gear! I mean, not that I'd ever forget and let it do that, you understand.

[@pinpatchyeah7987]

Best edited, composed videos on KZbin. The animations showed the different methods of attaching the wires. Great detail!!

[@ginolabarbera2056]

Great graphic to explain the wiring as you performed it! I just wish I could follow it! Great work.

[@heusiboi4785]

As a mechanical engineer, that was the best eletrical drawing I have ever seen! It cured my electrophobia a little

[@酒飲み仙人]

日本人です。毎回の動画、楽しみにしてます。あまり英語は得意ではありませんが、次回の動画も楽しみに待ってます。ディフェンダーの動画、心待ちにしてますね～。

[@adriaanvansorgen4977]

Already the best part of my weekend. Thanks Geoffrey!

[@GeoffreyCroker]

Thanks Adriaan 👍

[@stuartwood8679]

Fantastic video. Nothing better than having a spare hole ! 5:19

[@wiktorrubinsson5953]

The quality of your videos is outstanding, i hope you never run out of projects and inspiration to upload more of them!

[@shonnyNOR]

My Pommy mate in Australia, with life-long experience of lathes and similar machinery, considered the best use for a Myford was as anchor for mooring a boat.

[@gregwmanning]

Clever idea with the pulley key(s) well done I jumped at the 80thou depth of cut explosion!

[@chrissymon1001]

Honestly Geoff, your videos are top notch. Great work

[@Munky83Nut]

Your video editing skills are just as amazing as your explanation of wiring switches. Restrictions in Australia are easing and I've heard it's the same for you guys across the ditch. Cant wait for the next one!

[@balancedben]

Lovely job on the visuals in this episode!

[@zukowski2023]

Geoffrey! Glad to see a new posted video, the opening was hilarious and well done. The trick with the bushing and key ways was bloody brilliant! Nice to see your still "with us" and have not succumbed to the "sickness". Stay Safe Thanks for the share!

[@johndavies2396]

Just makes your day when a Geoffrey video comes up great! Stay safe down there in New Zealand cheers from the UK

[@southyjd]

At this point im wanting to send a search party in for him. Missing the uploads. Said it before but it's still the one channel I will actively check for uploads.

[@FliesLikeABrick]

Personally I probably would have gone with the single T-profile key. At the time you were considering the options, my reasoning was that this way the power is transmitted from the motor to the pulley via the key . With the 2-key solution, the motor power is transmitted via the motor key, the adapter bushing (which has very little cross-section by the longer key), and then the second key. Then as the video progressed, it became apparent that the extra machining for the one-piece key would have been made up for by the modifications to the other keys, welding, etc. Great outcome either way. I hope that broken motor went into the stash or to someone that fixes it -- it's probably something simple and/or educational to fix

[@DDB168]

Wow that was brilliant. I just wish I could understood it all :) An 80 thou cut would take out the grid of my entire neighbourhood !

[@Pushyhog]

lights action camera sound filmography timing editing incredible.

[@theoompalompa]

Awesome story telling. Up there with this old tony. Love it

[@theflyingfool]

Loving the diagrams and explanations, even though they meant absolutely nothing to me... not being electrically minded you see. Nice to see you're OK and still posting. Now you have a challenge, since this video has raised the bar so much with the sound effects and artwork, people wil be expecting it on the Landie project too!

[@keirfarnum6811]

That thing is quiet compared to the Atlas/Craftsman. Looks really beautiful. You did a great job restoring it.

[@MartsGarage]

Thanks Geoffrey, that is very helpful. I will have to rewatch a couple of times to work it all out, but the graphics are excellent. As always your videos are very well made, informative and entertaining. All the best, Mart in England.

[@MadeInGreatBritain]

Geoffrey, ditch the top slide and make yourself a solid tool post mount that bolts directly to the cross slide. You’ll notice a huge improvement in rigidity. You can save the top slide just for turning tapers and the like. Darren

[@who-gives-a-toss_Bear]

Step key and slotted bush would work. Maybe as you did but with the keys at 90 degrees not 180. Both with clamp screws, better holding and alignment. Recommended for slide fit pulleys.

[@jeffwallace2201]

Hope you and those you love are well!

[@tojiroh]

Fond memories of doing restoration work on a 60's Schaublin 135 lathe during my internship... Busted knuckles, oil drenched overalls and swear words included. Hope to get my own one day!

[@MrButtonpresser]

Production values thru the roof! Great stuff.

[@mikemichelizzi2023]

Great video - perfect amount of cowbell!

[@robertpartsmade5832]

Glad to have you all back , excellent as always .... Regards Robert Partsmade 🇬🇧

[@GeoffreyCroker]

Thanks Robert 👍

[@tuva600]

I'm not a Mechanical Engineer, but the way you made the bushing it now works as an intermediary coupling (i.e. the force is coupled from the motor shaft, 180 degrees through the bushing and finally to the pulley) instead of just from the motor shaft to the pulley with a T shaped key. Not sure if it matters though.

[@BravoCharleses]

Mr. Croker, your filming, editing, and narration are best in class. Your channel is critically underappreciated. I do my best to pimp it out to interested audiences and I'm always proud to be a patron. Any tips for those wishing to start making videos? It seems like when you started you were birthed fully formed from the head of Zeus with the appropriate skills. Even your oldest videos have an extremely high standard of quality. ATB from America.

[@drooten]

I enjoy your sense of humour and have always enjoyed your videos. Thanks

[@markthompson2158]

Great video Geoff, the work on those bushings was tops. Cheers Mark

[@erikjohansson1814]

Clearly one of the best KZbin channels on..., well KZbin. Been bong watching and it is a blast.

[@MrWaalkman]

@7:55 Finally, technology that I can understand!

[@chrisperry7963]

Oh man, worth being in lockdown to have this stellar content! Thank you!

[@petedig5809]

Good to see you back. You are the Yin to Maximus Ironthumper Yang.

[@GeoffreyCroker]

I love Maximus ironthumper

[@JockeSelin]

I was listinin to a Kiwi on a podcast earlier today and I was wondering what you were up to and if you were out playing on your big deck, behind the house, but I was wrong, you’d been busy with this there vijeo. Much appreciated. Superb stuff, and glad you kept the angry pixies inside the electrickeryspaghetti. Well done!

[@GeoffreyCroker]

Thanks Jocke 👍

[@georgespangler1517]

I use treadmill motors on my lathes,,,can't beat them,, do quiet and smooth and the soft start is so much easier on the lathe and I love the speed control, no more pulley changes

[@tanathos0414]

So glad you decided to upload after a long wait.

[@faidrosavdis]

Such a pleasure to watch! Thank you for taking the time to present your excellent work!

[@kiwidonkeyk1656]

Excellent production, thanks for posting. Any chance we can see how the new shop is coming on with all the extra time at home? Instead of that rubber how about a bit of adhesive draught excluder, I've got the stuff all over the place, works wonders.

[@GeoffreyCroker]

I will do a shop update soon. Yeah pretty much anything glued on would be better. But the inner tube works so I've just never got round to it.

[@theDaftman]

TWAT !! made me jump with that fire ball at 80 thou lol, thanks for your upload.

[@chrisunderhill6527]

It's many years since I machined anything, but I have fond memories of being an apprentice and making the chips fly off a lovely shade of blue. Fantastic until one goes down the collar of your overalls and you start doing a merry dance...

[@GeoffreyCroker]

It takes a bit to get blue shards flying off a little lathe like this 😁

[@samcoote9653]

Just for the cover that still rattles Geoffrey, could you just grab some of those little sticky rubber dots once you're allowed at the hardware store again? The kind that you stick under furniture legs etc? Great video as always, she sounds sweet! And I'm keen to see what you do with that pantograph too!

[@dereckjtbear2175]

What we All have been waiting for, Test run...! Yeah Great job 😁

[@supervivet911]

Good to see you back in business again, mate!

[@tom18181]

Great to see another video from you again. Cheers

[@tomk3732]

In drum switch if you number terminals on the left 4 5 6 and right 1 2 3 you connect TERMINAL i.e. thing in your motor that never have power to 4. Then the wire that has no power and instructions say interchange to 5. Line to motor is 6, line from outlet is 3, neutral is 2 from outlet and connects directly to motor. Finally 1 is the wire in the interchange that normally has power going forward. Draw it out and it becomes clear. The Terminal connection is the key.

[@craigtate5930]

Really like hiw you handled the keys on the bushing. Great idea

[@johnkingston7244]

Very much enjoy your videos - just catching up on your back catalog (hence why 6 months behind everyone else!) Very clear, well edited and I enjoy that quirky antipodean humour... Now gotta wait for the next Landy episode.

[@BlackBirdMax]

Love your videos. It's a real treat when they come up.

[@pkuukas]

Ayeh, ayeh! AvE-reference appreciated

[@caffienatedchaos]

Clicked faster than the springboks making bad decisions on the pitch. Ninja edit: You used the old motor to make a bush for the new motor. You truly are heartless. Spare holes are always nice. I keep a few myself.

[@jayoliver3734]

Heroic work from the little lathe!

[@GeoffreyCroker]

I reckon 😁

[@The1LoganT]

Not sure why, but I imagined this lathe was much bigger when you restored it.

[@accckiy]

Long time no seen. Nice to have you back. Thought never see you again.

[@nzoomed]

Im from New Zealand and also have recently bought an ML7, I saw your idea for machining new leadscrew nuts and am in the process of finishing them off, ive also decided to convert to metric at the same time and make new dials for it. I got some new feedscrew and will machine it to take the handles. Would love to have a chat about a few things if thats possible :) Thanks for the vids, keep it up!

[@omarmahmoud9073]

11:00 You secured the pulley to the bushing, and the bushing is not secured to the shaft. There is a likely hood it will fall off. I suggest going back and going with option 1.

[@JxH]

@24m15s (near end): Interesting how the speed of chip formation (chip growth unit length per unit time) seems to be so much slower than the surface speed (RPM and circumference converted to same speed units) of the material. Perhaps it's just an artefact of the camera. Or perhaps the material in the curly chip has been accordioned on a tiny scale.

[@SeanBZA]

Sheet of rubber between the mounting plates, along with a rubber washer top and bottom of the plate on the motor and base will damp a lot of that vibration down. Just remember to add a ground wire from the motor terminal block through to the body of the lathe, so that static charges can be neutralised.

[@dirk4926]

My girlfriend has a machine that sounds just like that old motor from your lathe, not sure what uses it for but she keeps it in a drawer of the nightstand beside the bed.

[@Mjc103]

Slow clap.....

[@lotus7even]

Brilliant series Geoffrey I’m looking to buy Myford ML7/Super 7 in UK this has been very helpful and informative

[@danskhandle]

a well edited video on KZbin, so rare

[@PhilSTUDIOSS]

I once turned Stainless Steel on a Vöest Lathe. With 5mm depth of cut and decent Feedrate.

[@Jconway651]

I put a 1hp 3 phase motor with VFD on my myford. Totally transformed it, as my old motor was knackered. Although to be honest it’s too much motor for the lathe.

[@GeoffreyCroker]

Yeah. 3 phase with vfd is the way to go with everything. I would have gone that way if I had to buy a motor.

[@philiprogers5772]

i swapped both my old belts for linked belts. Wow what a difference. Much quieter.

[@GeoffreyCroker]

I run a link belt on the main pulleys. Agree. I would have done that except that they are crazy expensive to buy here. As soon as Amazon is shipping international again, I will be buying a few metres of the smaller size.

[@infernalcontraptions]

Someone been watching AvE? Huh? Huh? You KZbin guys...;-) Great vid and nice to have you back!

[@AT16]

Great video Geoffrey. Liking the animations, helps to explain things much better. But next time you need to get yourself one of the Newton Tesla units!

[@danieltaylor9970]

Are you missing the little spring clip on the belt cover where your little rubber bung is? Also are your oilers originals or replacements, my ml7 is missing both.

[@GeoffreyCroker]

Whaaaat!! I think you're right. Now that you mention it I vaguely remember something about a little clip and not putting it back on.... hmmmmmm

[@superkas]

My bloke is back, hell yes!

[@derekddanderson1]

Why not replace the bearings on the old motor

[@DavidWalling]

After dismantling the motor, he wouldn't have had access to the lathe to turn down the wrong-sized bearings he would have somehow had acquired to replace the bearings on the motor he uses to run the lathe.

[@GeoffreyCroker]

It has capacitors hanging off the side with cable ties and a wiring box that looks like a pile of bird s**t.

[@iTeerRex]

Yes, I was thinking the same. Replace the cap and bearings and its good to go.

[@FilaretX]

can find the native engine? Sorry for my english)

[@diltzm]

Might not be the bearings, a bad capacitor will also cause a motor to run rough. The current in an inductive circuit (the motor) needs to lag the voltage by 90° for the motor to run smoothly. If the capacitor is worn out the voltage and current will be in the same phase and it'll run like shit.

[@cantsolvesudokus]

the animations are top notch!

[@davidnordblom406]

Fuck I miss New Zealand! Helps to hear your voice though. Glad you’re doing ok!

[@davidkerr4023]

Great videos Geoff, Thanks mate.

[@brucehodsdon4310]

aww. My ML7 has that same rattle in the belt cover. it's one of their little quirks :) Cheers from over the ditch!

[@Cartel834]

Today I leaned that I am not going to be an electrician when I’m older, that wire diagram made no sense to me😂

[@MichaelSteeves]

Electric motors are black magic. I'm an electrical engineer. (well, specializing in I&C). Electric Machines was not my favourite course!

[@mohabatkhanmalak1161]

Its easy if you master the principals of electric motors.

[@fredericrike5974]

@@MichaelSteeves Wow, I'm a retired plumber and HVAC tech- I can't engineer the things, but I know how to work with them and workan applications chart and I do understand the magnetic theory- it seems so simple after the "right" explanation, which began with Ohm's Law, how that is the same as the Pressure/flow of water in a pipe, and finishes with the sympathetic acceleration of neutrons through exposure to a moving magnetic source. It's fairly basic science today, Tesla figured it out and everybody has been riding that coat tail since 1890. Machines and gears and clocks and such were my favorite toys as a child, so ratios and such are second nature to me- sorry it was a reach for anyone, because it shouldn't be, as the forces have been with us forever, maybe even the Egyptians were working it!

[@MarkH10]

I'm older, not an electrician, and it made no sense to me, either.

[@davidtaylor6124]

@@MarkH10 Yep, I got nothin. But it's always good to watch Geoff even if you don't understand what he just did.

[@Veektohr]

.040" looking really good tbh

[@garul1669]

you could redo a pulley and remove that strange bush. you could make a plate and rotate the motor 90 degrees so as to have more space and add side blocks. In any case, I'm glad you're fine, I really like your videos, I would have been sorry not to see you anymore 😁

[@kvsteve]

You've made us all proud.

[@coreygaydos1]

Another awesome video, we need more vids, they are super informative, good job!!

[@ajuan2005]

Great video!! take care and see you next time!!