Making The Reciprocating Rack & Pinion

[@general5104]

My Dad spent most if his life repairing fishing tackle & I would watch him tear down reels, make springs, install parts salvaged from old broken scrap reels, etc. This dual rack & pinion slide assembly was in the Orvis reels for the up & down even winding motion. U had seen him taking the stuff apart, cleaning and greasing it and putting it back together & watch it work just by pushing the spool up & down! But up until I watched your video with the wooden model...it never really made since in my head...& I have been a tool designer for over 40 years! Now I have another aspect to use, thanks to your teachings! THANK YOU!!!

[@kdmellor]

I'm not sure what motivates you to make these little gadgets, but I'm glad you do it. I learn something new every time I watch one of your videos. You do a great job of explaining the processes as you go through them, without wasting a lot of words, and the video footage high quality, too.

[@RonaldWalters2010]

Thank you! Glad to hear you are enjoying my videos. Please subscribe.

[@johnnyjimj]

Amazing... I was involved in an invention that is uncannily similar to yours, back in the late 1980s... The inventor, a friend of mine, sunk something like 100 to 200 grand in it, mostly in patent related fees (I strongly advised against it - I thought he should imply manufacture the device and sell it himself, but he wouldn't listen and ended up practically broke). But to come back to the thing, he spent lots of time at the machine shop trying a design, modifying it, coming back to it... He'd be on the road constantly ;-) Boy how things change with the evolution of technology! Now one could probably design it all on a freeware CAD and build it directly on a 3D printer...

[@bellejardin]

For the last 5 years or so, I have been searching the internet looking for an electric rocking chaise lounge. I've found a gizmo to rock a hammock (side to side) and I've seen the rocking bed but I can't find a chaise lounge that will rock. It seems unreal that it's not out there because it would help overactive kids, people with depression and anxiety and the eldery as well. I have seen plenty of patents but no-one seems to have come up with something. I was really hoping for my 60th b'day, I'd be able to have one but I guess not. I had a fairly rare aggressive cancer that I fought and finished treatment at the end of August last year. It has a 85 to 95% chance of returning within 2 years and this has been one of the things on my bucket list. Ronald, I loved your video and the fact that you told us what didn't work as well as what did. Best of luck to you sir.

[@k8rgrl]

Nancy, if you're still with us, at 66, they exist now. I did a simple search for them on Google, and found quite a few, some indoor, some outdoors. I hope you're still with the living so you can pick one up.

[@Alainjean127]

Great piece of work Ron, but moreover very generous of you to share.

[@gondolacrescent5]

I should mention I'm very favourably impressed with Ronalds work and ability to think. Anytime I'm tempted to vain pride concerning my work and capability, a visit to this part of You-Tube quickly upsets impending delusions--and for that, I'm grateful.

[@flixpods]

Sir...you are a true hands on engineer...it is amazing that you could design tool and build all the components by yourself and that too with such a finish...cheers

[@petermenningen338]

Ron I've used the glue with paper to hold items together in the past. I've now switched to the 3M pull free picture mounting technology to do this in my shop. It is faster, removes cleanly , and holds to metals as well as wood and other porous surfaces. I've even used it to hold a metal straight edge to a rough wood board to straighten an edge on the table saw.

[@psn9086]

A very elaborate and cool demonstration of rack and pinion mechanics!

[@danielaunspach6312]

Thanks for taking the time to make and share this video!

[@MK-jn9uu]

omg, your expertise is as fascinating as this mechanism

[@cicero2]

Very interesting, Ronald. As a retired printer the mechanism you've designed is similar to the flatbed movement of the 2 revolution Miehle press. The main difference being that the gearwheel did not have the cut-out and moved laterally and engaged geared racks offset to one another. Buffers took the strain as the heavy type bed reached its end motion. I've tried to find a drawing but no luck. Best wishes.

[@thecasualcitizen492]

Excellent craftsmanship. Enjoyed the video.

[@gus6rocks]

very nice job, nice hand skills. We must not let these skills die

[@mattmoreira210]

That first motor you've shown is not a bad quality motor. It is just not intended for your application.

[@wtfarg]

You mean it's made for a system without much resistance? I guess some motor need to turn at high velocity to produce a significant contribution. Using the same gear difference shown on the second motor we may actually see it work properly.

[@mattmoreira210]

Yep!

[@alerey4363]

And it's got a gear adapter to translate the axis towards the edge; you can surely dissasemble that mounting to get the original bare-metal motor (with the axis at the centre)

[@CrackleLackle]

10/10 would brush teeth with that.

[@FrostMonolith]

+Edgar Pineda Finally someone who thinks not pervertedly! Damn these minds are rare these days.

[@Afrocanuk]

...Can't understand why there're 469 thumbs-down on this video.

[@pedrosacramento]

In one word: envy. The video is awesome =)

[@imageblogger2142]

Pedro Sacramento I totally agree.

[@stop4stuff]

This is just the solution to an issue we face in a project my son and I are working on. Thank you for sharing.

[@MrAcgolem]

Thank you so much for making this video. I've been scratching my head trying to work out how to make a large scale levelwind for essentially a kontiki reel. Although mine is actually towed out by a large kite and skyhook rather than a kontiki. Anyway I've converted a self propelled lawn mower into a large, petrol powered reel and just needed a way to get the fishing line back on the reel evenly. I'll use your idea but gring teeth off a bike gear and tack weld lengths of the chain to the inside of a steel box. Maybe mount that on a heavy duty draw runner.

[@RonaldWalters2010]

Google the French fishing reel - "Mitchel 300 images" - look around for photos of it taken apart. It's been around a long time.

[@MrAcgolem]

Ronald Walters that is cool. Mine will be more like a bait caster reel and about 50X bigger. My kite tows 25 baited hooks on a 360lb fishing line a mile out to sea. I've built a trolly mounted reel with a 4HP briggs and Stratton motor to wind it in (usually gets 7 or 8 big fish and the occasional shark) Just need to make a levelwind. It's a common fishing method in New Zealand but outlawed in most other countries. To be honest I've enjoyed building the reel more than the fishing.

[@tubalcain1]

I can already see Matthias using this in one of his AWESOME machine ideas!... Nice job Ron!

[@stratmister009]

After completing my education in electronics I realized I wished I'd studied ME instead! Also, wtf is wrong with air-heads who gave this video thumbs down! This is a fantastic video. Thank you for sharing your knowledge, much appreciated. If I may suggest, you might consider follow up sequels to this showing practical examples/applications.

[@AndreasBlomBakke]

The grass isn't always greener. As an ME, i sometimes wish I chose EE.

[@rickardliljekvist5983]

Christopher Polheim was an swedish engineer during erarly 1700. He mad I think over 40 different motions like this in wooden modells. All from quite simple to more advanced. They was the base for a Engineering Shool in stockholm founded by the king. Before this sweden was not anything near technology or mechanic. We knew hot to make very good steel already then but that was it. But from this point with this wooden models and all the students learned mechanical motion everything started out that later became that our small country became famous for making very clever engineering and also able to manufacture them.

[@caitthenerd7470]

I don't know what this is but I like it! You've earned yourself a sub!

[@SirGregory]

It's a bit over five years since this video was created, and as I was watching I was thinking how 3D printing has made prototypes so much easier. But the romance of working with wood is special.

[@RonaldWalters2010]

Ahhh… an Aussie. I have lived and worked in Australia (dating back to 1973) and have many Australian friends. Thanks for watching… and for your comments. Please subscribe! Ron

[@marvinbanjo]

This is the same mechanism that made the old Mitchel 300 spinning reel mechanism work . In this case the gear case moved and the gear stayed fixed and when rotating , causing the spool to go in and out from a pin in the back side of the gear case connected to the spool shaft -- meanwhile, another gear on the crank caused the spool to turn . This made for a pretty simple and very smooth retrieve mechanism which was really advanced for fishing reels over a half century ago .

[@prosper6504]

thanks for sharing the idea, this is what I need for my project. God bless you.

[@cptairwolf]

I'm not sure I wanna know what you plan to use that for.

[@Pumbear]

Let's just say webcam models around the world are delighted by this invention.

[@52Ford]

Phaha... That one took me a minute to figure out.

[@gusstavv]

To make cheese? or butter?

[@macewindu4494]

window wipers in cars?

[@TqSNv9R0iG5Ckxew]

hedge trimmer mechanism

[@slothywun]

Very nice Ron!

[@jrzzrj]

very well done.....both narrative and building of item........

[@claytonbonser7629]

This is a version of the gears that make the agitator in a washing machine reciprocate. The first motor you tried is called a synchronous motor. It is primarily designed to have a low torque extremely stable speed. Like in clocks and timers etc.

[@vidskitkid]

Wonderful build, explanation and demonstration, thank you!

[@NP-rh3dt]

That's pretty genius to be honest, I can see it being quite useful

[@redtails]

great work and explanation

[@rafaelelizarraras6122]

Ése sistema es muy usado en maquinas tortilladoras, lavadoras industriales, maquinas qué fabrican vallas metálicas, limpia parabrisas etc. etc. Muy educativo el vídeo, felicidades 👌

[@designsbyphilip510]

Using a windshield wiper motor you could easily use this as part of an oscillating drum sander. The roomba (sp?) wheel might have enough power on its own. Very cool.

[@gondolacrescent5]

Your windshield wiper motor idea has me wondering if you're in favour of low voltage, direct current shops and electric tools.

[@geevee1969]

Very well made Video!

[@theone-so9br]

I build by trial and error as well. Have you tried extending the length of travel which would allow you to add another tooth or two to each rack and the sprocket. That should eliminate the backlash caused by the free spin before engaging the opposing rack. Just my two cents, but I did like what you've done. Very well thought out. Thanks for sharing.

[@weejohnbb]

I love the paper and glue trick!

[@silaskuemmerle2505]

I needed a scrollsaw, this makes the design much easier, and saves me $200

[@MattyH73]

Quite Amazing at what you do

[@abhijitrashinkar]

Thank you to share a very nice piece of engineering. cheers...

[@ドーちゃん-d5g]

Thanks for the idea!

[@RonaldWalters2010]

Thanks for watching. Please subscribe! That is what keeps this channel going. Ron

[@ドーちゃん-d5g]

@@RonaldWalters2010 of course sir

[@acoow]

One more tooth would limit the stress of impact at the end of travel.

[@jasvin49]

No dear ... At last , impact will only come on 1 tooth only however you may put as many teeths but impact will only come on 1 teeth

[@rich1051414]

Hmm, perhaps its a failure of my visualization, but it seems to me it could do with one additional tooth to reduce the slamming when transitioning to the other rack. Unless the slamming is intentional feedback that is.

[@RonaldWalters2010]

+Richard Smith As mentioned in the video and several times in the comments, it is the pinion axle arriving at the end of the slot which gives pause for the teeth to switch to the opposite rack. The teeth operate very smoothly (no slamming, no extra teeth required). If this were turning very slowly you would not hear a thing... but I did not have a slower motor available.

[@davidgouin8420]

Ron that is slick as cat shit on a humid day! Great Stuff!!!

[@maxdecphoenix]

good stuff as usual mr walters.

[@gagemiree6455]

This is awesome. I created a oscillating movement with three geare and motor but this is cool.

[@Аноним12Синоним]

Молодец мужик. Тарелку от CD-ROM а изобрёл деревянную. Как же мы все раньше жили?

[@chuxia7542]

unbelivable,amazing,i think it is very good.

[@steverose2405]

Nice mechanism. It will also convert linear to rotary motion. I have an application in which I need to rotate a load 180 degrees when I push it across a table. When I pull it back, I need the load to rotate back to the original orientation. Because I am not concerned with the gear always rotating in the same direction, I could use just one gear rack and a full gear (no missing teeth).

[@RonaldWalters2010]

The rack in this configuration will not drive the pinion because there is nothing to cause the pinion to switch over to the opposite rack. You might want to check out my video on Movement 123 where the rack does convert linear to rotary movement. Maybe you just want to stick with a simple rack & pinion.

[@numberday6645]

I love racks. Subscribed!

[@vicentejoseramos7803]

Very near to the "magic lever" used by SEIKO for autowind in his watches. Nice.

[@p.m.justice3502]

Thank you for sharing your knowledge and skills so that others like myself can learn and incorporate the information into such things as automata art!

[@niFeforever]

Think of all the potential this has....... in the industry if you know what I mean :3

[@jamessawyer1331]

First thing I thought of was... if you know what I mean.

[@sircampalot001]

My thoughts are what you could do with the Spindle Sander. "Sit down honey."

[@gondolacrescent5]

sircampalot001 I have a Ryobi spindle sander and bought it for a specific job that redeemed and multiplied the investment cost... but 9 years afterwards I've had occasion to use it only one additional time. I also recall opening it to see the mechanism responsible for imparting the reciprocal movement of the spindle-but being disappointed with the observation, I quickly forgot it. After watching the host video, I'm curious to see if it's rack and pinion. In light of my earlier disappointment, I doubt it is (i'm boring myself writing this--sorry!)

[@Stellectis2014]

James Sawyer ?Dildo machine LOl

[@Starlight012]

This is old ways of industrial design before microprocessor were invented. With H bridge motor IC you can control the motor back and forth plus more. Mechanical structure is way more expensive then electronic controls.

[@ebenezerservice9586]

your idea is nice! I like it.

[@TenDegrees]

Saltwater Reef Aquarium Hobbyists, myself having been one for a number of years, have long searched / invented / fabricated creative ways to create "random" water flow within their aquariums. All sorts of contraptions are coming to market to ATTEMPT to mimic the random water currents found on our natural coral reefs. I could see a longer, water-resistant version of this installed so that it runs the length of the back of an aquarium with a powerhead/pump attached.

[@chaitanyavedak2412]

Great Explanation and Prototype.. Can be effectively used for a Scroll Saw..

[@VaSKovach]

Very nice! I like that!

[@Arithryka]

seeing it "clunk-clunk-clunk" at the end brought me joy

[@Triffgits]

very cool, ron

very nicely done, and thought ! Thank you mostly for sharing the glued paper trick, very very smart one ! I will use ity with cigarette paper in by job as I am a jeweller. Thanks again. Frederic

[@박시영-y8x]

Marvelous!! Nice work!!

[@openlink9958]

Thanks!!! I was looking for a mechanism capable of alternating the direction is going without the need for the motor to stop and change directions

[@RonaldWalters2010]

I have another more complicated mechanism - Making Movement 123 - Reciprocating Rack Mechanism kzbin.info/www/bejne/eZLWkKeFiMytbrs

[@leonid3312]

May be useful for some kinds of saw tools. Like it!

[@Kang003]

awesome video

[@carmelpule6954]

Unfortunately, in this system there is a lot of backlash and if the system had to move, a tooth could be crushed. unless a locking device is integrated like a ball and spring locator. I think I shall try to design one without a backlash before the teeth engage. Congratulations nice idea,

[@RonaldWalters2010]

+Carmel Pule' It certainly can be timed "perfectly" just like the "Mitchell 300" fishing reel (which requires no locking device) especially if it is drawn in CAD. I don't use CAD so this was built using the trial and error process. Thanks for watching!

[@LectronCircuits]

Very good. Now if you made one that was 20' long, that would be totally awesome!

[@linusa6400]

Really nice.

[@keithhull6749]

Cool as hell!

[@GnuReligion]

Like it! Guess my concern would be that only one tooth grips the straight teeth at the extremes, if used for high load. Maybe a Scotch Yoke? ... but that will create sinusoidal motion.

[@raulaugusto1178]

gostei de ver este belo trabalho

[@1981valentin]

Very good.Fernando from Buenos Aires....

[@aghashire]

Very Nice design!, Just to say, if the wheel engaged with the starting teeths of one side without any gap, there would be no pounding sound, which is caused by the axle hitting the end of the sliding slit!

[@RonaldWalters2010]

agha shire It certainly is possible to play with the timing of the gears so there is no play and the axle does not engage the end of the slot. As I have posted before their mechanism is used in the French fishing reel - The Mitchel 300 - Google it.

[@pralkatv3485]

fajne, lubię oglądać realizacje podobnych pomysłów

[@RustyGunn7]

Cool. Neat project. I enjoyed it. Thanks for sharing.

[@Tyblerone]

beautiful work!

[@athiker7209]

Ron, thanks for sharing. I can vision this as a device to create some animation in Christmas decorations out in the front yard. Some slower speed motors and you can have Santa waving at the neighbors or the deer dipping their heads while they eat. Cool!

[@dnomyarnostaw]

Great fun to watch - thanks

[@jjenson2006]

You could make up two spring plates. One on each end that will cushion the impact when transitioning and quite the clicking noise.

[@RonaldWalters2010]

jjenson2006 If the spring(s) were strong enough to cushion (decelerate) the impact, they would probably also be strong enough to recoil (accelerate) the axle in the opposite direction before the pinion had time to transition to the opposite rack, which would lock it up. A certain amount of dwell is required at each end of travel to allow the pinion time to switch to the opposite rack. If you just slow this down, there is no discernible impact or clicking noise.

[@BIkeManBen]

Cool!! Nice Work!!

[@woodsmith_1]

Very clever!

[@thecoolkid440]

kinda cool, seems more like a novelty than a practical tool though. I can't imagine that performing long term under any kind of strain.

[@o11o01]

TheLaziestOfSloths Looks pretty damn cool to me. It let's you reverse the direction of of your linear motion without changing the direction the motors spinning.

[@drinkingheavily7467]

I imagine the rotor would take one heck of an unnecessary beating though. As cool as this is I don't think it would be better than a piston wheel for longevity or momentum.

[@Debonair.Aristocrat]

Think: Windshield wipers.

[@mixme8655]

wow nice one

[@turevus]

This is very inspiring and as Mr Spock would say; "fascinating" !

[@Ktkahghierm_quakeDddYyy]

nice work thanks

[@vallejokid1968]

That was fascinating. Thanks

[@wilerichards9827]

Nice You could do quite few things with this mechanism.

[@jemilmarcos5986]

Very nice, this is useful :)

[@RonaldWalters2010]

Jemil Marcos This has been asked and answered several times in comments for this video.

[@jemilmarcos5986]

I probably made a mistake since english is not my primary language. What I meant is that the porcess you show on your video is INDEED useful, I, in fact, am going to use the concept for a personal project. :) so, all sumed up comes to a confirmation of the positive usefulness of th video :)

[@RonaldWalters2010]

Jemil Marcos Actually I made the mistake as I misread your comment (and English is supposed to be my primary language). I thought your comment asked "is this useful". I sometimes get 50 or more comments in a day and do not always spend enough time on them. :-) Thanks for watching. Good luck with your project! Ron

[@lukemichaelides]

To perfectly time this you could have another mirrored wheel on the opposite side along with track teeth also on the opposite side.

[@whynotanyting]

I wonder how much energy is lost through the impacts.

[@RHBTurbochargers]

function of the mass and velocity of the moving parts

[@brennanduquette2877]

i was thinking the same thing. Given that he made it by hand though, that's pretty impressive, right? :D props to people who take the time to make videos like this.

[@s50201]

With higher tolerances, not much

[@askingstuff]

Nincadalop that depends on how much pressure you apply.

[@MrImarcus]

Force... :)

[@egyptsebastian4763]

good job

[@hipolitopadilla1655]

nice Reciprocating Rack

[@medsami3679]

thank you is verry good

[@MultiDeivas]

Would be interesting to create a table desk drawer from this design.

[@bob14072]

Very cool!...Now I know more, thank you.

[@manceindo69]

wow awesome, I like this video.

[@ProfessorDantheScienceMan]

What are you going to use this for? Looks like it would work with maybe a hacksaw blade to make a pipe cutter or something. If you could get a strong enough 5v motor you could power it with one of them cell phone battery chargers. Maybe a log saw with an even stronger 20v battery and motor.

[@gregs.7200]

That's so cool.

[@hellishgrin4604]

I think it's quite ironic that this video was on my main page when I just saw this type of setup and the as thinking of uses for it a few days ago..

[@diederikvl70]

very nice