Clockmaking - How To Make A Clock - Part 20 - The Crutch Assembly And Eccentric Bushing

Making The Crutch Assembly And Eccentric Bushing, by Clickspring.
In this video I make a start on the escapement of the clock, starting with the crutch assembly and a component that permits a slight adjustment of the pallet depth of engagement with the escape wheel.
If you would like to help support the creation of these videos, then head on over to the Clickspring Patreon page: / clickspring
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A very special thank you to Patrons Dan Keen, Samuel Irons and Sean Kuyper.
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You can also help me make these videos by purchasing via the following Amazon Affiliate links:
Cameras used in this video:
Panasonic GH5 - amzn.to/2rEzhh2
Panasonic X920 - amzn.to/2wzxxdT
Tools & Shop Products:
"Solidworks 2013 Bible": amzn.to/2FObS1D
Sherline Lathe: amzn.to/2pnXM19
Dykem 80300 Steel Blue Layout Fluid, Brush-in-Cap (4oz): amzn.to/2HGPaJJ
Generic Dial Indicator 0.001": amzn.to/2FOFTyF
Dormer A190202 Jobber Drill Set, 1.0 mm - 6.0 mm x 0.1 mm Size: amzn.to/2DR5fdb
Dormer A190203 Jobber Drill Set, 6.0 mm - 10.0 mm x 0.1 mm Size: amzn.to/2ITfeTa
YG1 NC Spotting Drill 8% Cobalt HSS 1/8 to 1/2" 120 Degree 5 Pc Set CNC Machine: amzn.to/2G7ylv6
Hegner Scroll Saw: amzn.to/2IhteVW
Super Pike Saw Blades Size 4/0 pkg of 144: amzn.to/2IO6aPw
Blue Matador Abrasive Paper - amzn.to/2IAFiBT
Saint Gobain (Norton) - 4 Arkansas Stones + case: amzn.to/2HCOAMX
Loctite 231097 603 Retaining Compound, 10 mL: amzn.to/2pid6vR
Abbreviated Transcript:
00:21 Generally speaking the escapement is considered to be the pallets and the escapewheel, but there are usually a few extra components required to make the whole thing work, and its those related components that I'm making in this video. There's an eccentric bushing that permits a small adjustment of the pallet depthing with the escape wheel, enabling fine tuning of the escapement.
00:41 And then there's the crutch assembly, which receives the energy released by the escapement, and transmits it to the pendulum to keep it moving.
02:17 With the taper formed, I transferred the work to the mill, to put in the other features. The embryo part can now be cut from the parent stock, to form the small clamping slot. But before I make the slot, here's a closer look at the fastener hole. One half has been drilled for clearance, and the other half is at the correct diameter to be tapped for the fastener thread.
05:30 I've got the work set up on this pumice stone to protect the bench, and the heat is being applied using a small butane torch. Up close, you can see the flux run, leaving behind a tiny matrix of silver solder adjacent to the join. A little more heat, and then that solder melts and wicks into the small gap between the parts, while the excess solder forms a nice fillet.
06:56 And I'm happy enough with a tool finish for this part, so I'll leave that as the final surface. The spigot has done its job, so that can be taken off with some abrasive paper, leaving a grained surface finish on that underside surface. The final step for this part is to use needle files and abrasive paper to bring the perimeter to final shape and dimension.
09:06 The bend locations are positioned roughly one third in from each end, and it really is just as simple as getting a good hold of it in the vise, and giving a careful push until its about right. The 3 parts of the crutch assembly are now complete, so a small spot of Loctite on each end is all that's required to bond them together. OK, now on to the eccentric bushing.
10:57 The central axis was located with a wiggler, and then a tiny offset was introduced to the spindle, so that the hole would be formed off center - as the name of the part suggests.
12:46 All three were made in the same way that you've seen in previous videos, using the small lathe. They were then hardened, tempered, and then polished and blued. Ok, so with the fasteners complete, I can start to put a few of the bits and pieces
14:56 Particularly since the eccentric bushing can an additional offset angle depending on where it sits in its rotation. Once it looked about right, I put the frames back together to give it all a test fit.
15:37 I've left the barest clearance between the crutch fork and the pendulum block, to minimise energy loss, and the eccentric bushing is ready to be adjusted as required in the next episode. Which leaves just a few key components to be made, before I can set the clock running.
References:
John Wilding "Large Wheel Skeleton Clock" construction book can be purchased online from Ian T Cobb:
www.clockmaking...
Making The Crutch Assembly And Eccentric Bushing, by Clickspring.

[@stormbringermornblade8811]

They should give you an award for best KZbin video series.

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I really miss hearing you say "I'll see you ladder" Can't wait for patrion series 3

[@TheKillerjohny]

I can not imagine better anti stress video.

[@VeggeMight]

You really make Machining look like a romantic art form.

[@deanm6095]

I`'ve been almost entranced as I've watched every video. I was only going to say "Thank you". But I must also say, whoever calls you an amateur must be a God. I look forward to more.

[@Clickspring]

Cheers Dean, more on the way soon :)

[@CutterSlade001]

I involuntary hold my breath on some of your final touches. Anyone else?

[@DMGendron1]

I thought I was meticulous before watching these of videos. Thumbs up !

[@BongSao1979]

I remember a friend telling me that if you had a lathe you could build every other tool in the shop. Never thought that was true, but after watching these I'm starting to believe it.

[@joshuarosen6242]

You'd probably need a milling machine as well.

[@jasonmurawski5877]

Joshua Rosen some lathes have a milling attachment, with that you can build a better mill and a better lathe

[@georgepapadimitriou4965]

You are an ARTIST !!!!! I am a machinist for the last 18 years but not an artist.. there is a big difference..!!

[@Clickspring]

Thanks for the encouragement George, very much appreciate your support :)

[@mikikiki]

This is the first time a KZbin notification genuinely made me smile. :D

[@Clickspring]

Terrific to have you watching :)

[@Bram0vitz]

Dropped work just to watch this!

[@alcoxy]

I watch a lot of KZbin videos but I have to say Chris that yours are in a league of their own. The videography, music, voice and eecution are just fantastic. Also love that you use your own tools to manufacture even more tools that you need.

[@Clickspring]

Thanks very much for the encouragement Almo, much appreciated, more on the way soon :)

[@hdef6602]

oh man the precision on this build must be insanely high

[@scabbynack]

I love how stark of a contrast bending the rod to shape was compared to every single other step of this haha Making a fork: 75 steps Shaping the rod: stick it in a vice and push it over

[@CKOD]

I was waiting for him to start putting pins in a plate as a bending jig for the rod. But then vise. I guess it would still be faster to do it in the vise, and get the same finished results, even if you have to redo it a couple times.

[@scabbynack]

Ya I was definitely expecting a jig, but hey, can't argue with results!

[@gusbisbal9803]

No one said he did it only once. I am guessing that was his third try.

[@GoGreenMan]

I was thinking the same thing!

[@PeterWMeek]

I had a set of hanging hooks (about 30 of them, with three bends each) to be made from 3/8" bronze rod, and I was trying to come up with a slotted die, and a punch to press the rod into the die. Then a friend with a factory that specializes in CNC rod-bending offered to do it all, so I never got to see whether I could make the die and punch.

[@StingrayOfficial]

It's hard to explain now awesome your work/channel is without using expletives. No need to reply. Thanks as always!

[@MacroMachines]

Nice to see that you finally got a spring loaded center punch. those things are great

[@ArchaicVirus]

Dude you are an engineering genius.

[@Moovek]

OHHH!!!! very good news!!! NEW Clickspring VIDEO

[@kalleklp7291]

Again an enjoyable video, with craftsmanship that is top notch. Every time I see that care for the details, it brings up a smile on my face...pure eye candy...!

[@bdawg923]

Another awesome video! Great work

[@Clickspring]

Cheers Max!

[@samschmidt427]

5 day old comment on a video uploaded 14 minutes ago. tell me your secret please

[@bdawg923]

+NoGiveBacks ツ if you support Chris on Patreon, you get access to the videos early!

[@onesimpleclik]

the quality & craftsmanship of your work is outstanding & the video production is as well. awesome stuff

[@eventphotographer08]

Finally, after 1 year plus. Can't wait for the maiden run

[@DJScopeSOFM]

So awesome! Can't wait to see it running for the first time. :)

[@Clickspring]

Stay tuned Igor, first tick of the mechanism will be in the next vid :)

[@Clickspring]

Probably just a bit over a week :)

[@chartle1]

yea I currently expect a month between vids. You know how hard it is to binge watch 2/3 of this series and then have to wait soooooo long for the next episode. :)

[@MrDylman55]

+Clickspring 😃

[@Ordog213]

What will we watch after this project is done...................

[@elidouek5438]

Oh hell yeah! New clickspring video!

[@MrCoaster36]

Exactly what I said!

[@darthcookie4096]

Oh no another month until the next... 🙃

[@pootatlulu4164]

As an apprentice machinist, I have to say.. Your videos are mesmerizing. Incredibly informative no stone left unturned and always a beautiful end result!

[@Clickspring]

Cheers WW, terrific to have you watching :)

[@Ivo--]

I can't believe it's almost done. It 's been over a year and a half since you started this project!

[@samaker4]

So close, yet so var! I'm not sure you realize amount of joy your channel gives. Thanks so much!

[@grovitch]

Anything not perfect in any of the videos in this channel? ... ... Nope. You are just killing it! Amazing!

[@aspenbanjo]

i like how you showed the spark pattern while grinding drill rod on the belt sander. Nice touch and a great reminder of how to identify high carbon steel

[@CrashTestCoder]

I'm pretty sure he was just cleaning the end of the rod, not specifically showing off the spark pattern

[@succuvamp_anna]

I hope you build another clock after this one is done. Your videos are amazing!

[@sidgar1]

Getting so close. Can't wait to see the culmination of all your work.

[@sueb5306]

How did you comment 5 days ago

[@cheongziyong8871]

+Sue B Patreon.

[@hippy9835]

time travel is real didn't you know this !!!

[@halemm]

early access to clickspring supporter on patreon

[@norwamoom]

Oh, such beautiful craftsmanship. Great camera work too.

[@alexakkers2859]

Everytime I see there is a new video on this channel I like to finish all my stuff, shower, dinner, relax.... and finally watch this piece of art

[@Clickspring]

Terrific to have your support Alex :)

[@IntegraDIY]

I've been watching this for months I can't get enough

[@nuttcorp]

Amazing craftsmanship, extremely clean editing, perfect lighting and as always super clear shots of all the working. It is a joy to watch your vids, they are always just about the work, no running on. I have yet to come across another KZbinr that does such a clean and to the point video. Cheers. PS watching you size to final dimensions & polish those parts gives me anxiety, you show like 20 seconds but knowing it must take hours to get those mirror finishes.

[@Clickspring]

Thank you for the encouragement mate, much appreciated. Sometimes it gives me a bit of anxiety too! Very relieved to not have to do any more cuts on those frames...

[@hanssondaniel]

And great narration too!

[@tommyvega7948]

amazing series! I hope you'll make a video at the end explaining how it all works to people like me who have no idea.

[@lucaspeltie]

Damn that solder joint looks nice.

[@virustwin]

brilliant mate, simply brilliant

[@caleblone614]

coolest homemade project ever.

[@mrhhj]

Thanks to you whenever I see a piece of metal turn blue when I weld, grind, or cut it I think of your channel. Great work as usual.

[@Clickspring]

Terrific to hear that, stay safe in the shop :)

[@nelmindo]

It insane, mind blow, I don't have words to discribe you work. Good job mate.

[@Snowy0123]

I've binged on every clickspring vid on yt

[@killerkane1957]

Brilliant,, Click, brilliant! I admire the planning and use of the spigot! Thank you for sharing with us wee mortals. Su Amigo Siempre.

[@Clickspring]

Thank you mate, terrific to have your support :)

[@wilhobbs207]

Beautiful work, as always. Thank you.

[@terrygingell7253]

I wait about 3 weeks and then start checking for a new video almost every day, sometimes twice a day. When a new one appears there is nothing more important for the next however many minutes. Such wonderful work on so many levels. Are you really just a one man operation? Keep 'em coming!

[@Clickspring]

Yes its just me, hence the long breaks between vids!!

[@zodak9999b]

Yet another video so good it brings a tear to the eye. Wow again!

[@bgoodellynp]

spread the word people. 185k subscribers for a channel as awesome as this! Chris deserves a million. I love every single video.

[@Clickspring]

Thank you Brent, terrific to have your support mate :)

[@PurpleHaze2k9]

I have to agree with Brent. These videos are inspired and the craftsmanship is top notch in not only the machine work, but the videography as well. I love your superimposition of parts that have yet to be made over parts that have already been built (e.g. 15:55.) You really are deserving of a larger following. Keep at it, you're doing amazing work.

[@BernhardHofmann]

Very true. I was just going to comment here but decided to do it on Twitter to share the love. Astonishing attention to detail I sit here in awe watching a true master craftsman.

[@tuffymartinez]

2 BIG THUMBS UP BRENT...I agree 100%....Chris/Clickspring you are appreciated by so many...Clickspring quality can not be overstated...Jeff

[@radekbenda1318]

Incredible!!!!! You are very skilled!

[@roscocsa]

Absolutely wonderful like all your videos. Thank you for putting them out there.

[@PeterWMeek]

Aside from the clock itself (which is beautiful in its own right) your videos are always beautiful. They offer many ideas for improving my own videos (which are pretty ugly as yet).

[@ChristopherSmith-bh4sz]

There are no words to describe how much I admire your work. Can't wait for the next video!

[@ronaldbarraza3084]

Christopher Smith is

[@dmanww]

machining the solder joint is genius. looks great

[@Edition89]

Wake up. Good day. Good day indeed Chris.

[@Dwyane1st]

Finally an update! It's like christmas!

[@PaulIstoan]

Glad I've watched this new video. It is really work of art.

[@cylinetris4549]

Watching your Vids is pure Satisfaction and this multiplied by a 32" Monitor is inspiring. ^^

[@aussie74z]

Hey Chris! Thanks for all of the amazing videos. My sons (7 and 5) and I can't wait to see the clock run. Your videos have inspired me to buy a lathe, it was finally delivered last week. Now I need a mill!

[@Clickspring]

Awesome, the kids will love it. Keep me posted on projects :)

[@maxximumb]

Still just as amazed as when I watched the first one. Excellent work.

[@topallielton]

Awesome again. Can't wait till the finish.

[@M4gg0tM4n]

I have been watching this clock come together for over a year now, I am amazed at how much work has gone into this. One of my favorite series definitely. I eagerly anticipate your next video! Cheers.

[@willclark491]

Your photography is a a continuing delight! You have fantastic technique and I can't help but be envious of your macro capability. This is in addition to your wonderful text and narration of course. Thank you so much for doing these videos!

[@DadSkool]

I reckon its made all ready and he just puts out a new video every so often. He is probably working on his next project right now.

[@blues0006]

That or he does this as a hobby (either way it's awesome

[@dimitrijevasiljevic]

Yes,I'm pretty sure that is true,but it's not certain.Judging by the quality of the videos it probably takes around a week to edit and half a week(to a whole week) to shoot.So if he is putting out the first run in more than a week,he's likely getting to the finishing stages of work right now

[@blues0006]

Samo Dimitrije Yeah, and now he's getting to the smaller stuff so it shouldn't take as long but it's great all the same

[@intjonmiller]

+Blues 000 Small stuff can take the longest, depending on the number of operations and the complexity of each. It can go either way.

[@blues0006]

+Jon Miller That's true

[@JimGriffOne]

I love the way you blue components with heat. That blue colour is gorgeous.

[@CrimHawk]

I'm getting so excited to see it fully finished and working!

[@ecrusch]

Fascinating. I'm going to have a party here when it's complete and running.

[@Clickspring]

Me too!! Will be very pleased when I get this over the line, its been a long build...

[@ecrusch]

Your work is top-notch and I truly appreciate you sharing your talent with the rest of us. Thank you.

[@pertileluca]

The quality of these videos are amazing!

[@accountcounter1895]

If I had to choose a phrase to describe this Chanel it would be “casual perfection”

[@intjonmiller]

So excited when I saw the upload notification, so sad when it was over.

[@andytodd4181]

I love these videos but the wait kills me!! to be fair it is worth the wait!

[@trentw26]

Man, I'm not even worried about my machinist skills not being on your level yet. I'm more concerned with getting to where your at filing. Your filing game is on point! Lmao

[@Eldser]

Keep up the good work! This is stress reliefing therapy

[@sagemurello898]

You are the friggin' Frank Howard of the metal-working world. He's a wood-worker. Beautiful work man, simply splendid.

[@Clickspring]

Thank you, I'm a big fan of Frank's too

[@iGarni]

Enjoyed every second. Keep on the good work.

[@basedjorts]

The craftsmanship in this series is amazing. I just built a 1911 hand gun and thought all the sanding and fitting was difficult. I can't imagine doing all the work needed for something like this.

[@jpdemont]

Brilliant Chris.

[@blkhemi3925]

This is stunning!

[@AdderlyPazos]

Your videos are absolutely perfect. I'm a woodworker with almost no knowledge of metalworking and I love watching this series. Much love from California!

[@Clickspring]

Thanks for tuning in :)

[@jeremytenorio3099]

Fantastic Chris! When I saw you setup the hand vise I thought, did he French Polish handle of that hand vise? That's typical of your craftsmanship! I've got to see that video, you have more than earned my support...its maybe even a little past due. Thanks for great work, it's a pleasure and a joy to watch. Keep it up! -Jeremy

[@Clickspring]

Terrific to have your patron support Jeremy, thank you :)

[@AndreyOvcharov]

The best project I ever seen. Absolutely beautiful!

[@larsmark]

Tom Lipton would be proud of your filing work!

[@Clickspring]

Tom is the master :)

[@colsanjaybajpai5747]

Great work of art

[@Reggiland]

have you ever made or would you make an orrery? I'd love to see one made by you as you'd make the entire process as elegant and amazing as the finished product.

[@joshua43214]

Wow! This is one of the best suggestions I have seen on KZbin. Let's hope he reads this.

[@Thunderbelch]

Agreed, that would be epic!

[@EZCyclone]

1000 times Like!!! What a series that would be!!

[@susanbarbier5053]

I didn't know that I knew what an orrery was. I love this idea!

[@D4rkyfirefly]

Check KenTOonz he does that one :) clickspring and him are two of my fav youtube makers for such stuff :p

[@jothisjoshy7355]

Very brilliant work ......

[@mupparamshyam]

you are a genius, awesome video, thanks

[@Robertlavigne1]

You channel is one of the few I watch a 1x speed anymore. Each video is a work of art to be enjoyed!!

[@brenovsky]

Exquisite, as always!! Love your videos! Can't wait for the next!

[@666MadDog]

just awesome! im following this project since the 3rd episode or so.. when she was ticking the first time on its own.. goosebumps :)

[@MicrobyteAlan]

Thanks from Orlando

[@MarkGray1970]

Great video as usual. Thanks for sharing!

[@ButBigger42]

Another amazing video. Thanks.

[@ГирейАбдуразаков-э7т]

as always, everything is clear and beautiful

[@grindfi]

i love it! absolutely love it! my ocd has been pleased :D

[@greggardner1455]

Thanks again for your videos. The work is awesome, both the clock and video! Looking forward to the finished clock.

[@teapotwar]

Wow this production quality is insane!

[@KingTesticus]

as always, simply amazing!!

[@kevCarrico]

amazing work! gorgeous photography!! fantastic descriptions and explanations!!! a 24-hour video of it running, when complete, would allow us to use such a video... as a clock! :)

[@azashukri5322]

Really beautiful work with the fork. I love how it turned out.

[@ryanlangan1060]

I'm not sure if you know who Bob Ross is, but you are definitely Bob Ross for the mechanically minded.

[@Clickspring]

Thank you Ryan, very high praise indeed :)

[@TheKeyote]

New Clickspring video!!! This is my favorite channel on KZbin!

[@elliottblackwell8012]

welcome back Chris , good to see move video up keep them up , your friend in the UK elliott