Making a sprocket for bicycle chain the way Clickspring wouldn't

EDIT: 2 years later I have completed the project I needed to make sprockets for. • Sprocket and chain tim...
I had a need for 8 tooth sprockets and worked out a design after examining a few different sized sprockets salvaged from bicycles. I made one from Aluminium off camera and then I stepped up to 3mm thick steel.
This isn't for a bicycle, I don't expect it to work on one and you shouldn't either :)
Originally I thought I would have to get something like this CNC cut, but I got pretty good results with basic tools. You could probably lay out the design on
the steel with dividers but I find using printouts easier.
more details on the project at / spe_in_stag_ram
Love your work Chris!

[@lapislignum]

here is the project I needed to make sprockets for (11 of them) kzbin.info/www/bejne/bHfNlnx3f52CqKs

[@David-mc4ny]

Great vid. Thanks, I now have the inspiration to make the exact sprocket I need for my new wind turbine.

[@lapislignum]

Cheers! I'd look at using sprockets from a bike for anything high speed.

[@petriepretorius4085]

thank you for your creativity capable of solving my problem...i repeat, thank you!

[@ThisOldTony]

nice!

[@lapislignum]

Thanks Tony, appreciate the visit. Love your work!

[@tripwheelerton2417]

Really nicely done.

[@lapislignum]

Thanks!

[@PedramBastan]

Simple and very useful. Thank you

[@lapislignum]

No problem, thanks for watching!

[@lazar2175]

Awesome man, it's pretty nifty you made a functional sprocket with a drill and a belt sander. Sent it to my mate who's making a motorised sliding fence gate for his ranch. I gave him a 5mm thick piece of spring steel, and your sprocket sketch, so if it survives pulling a 180kg sliding gate then i'd say it's more than fine for ebikes and stuff.

[@lapislignum]

Cheers, I wouldn't use it on anything high speed but it should probably do OK on a gate. Thanks for watching!

[@Digitalchirppy]

Simplified Engineering work Great work

[@lapislignum]

Cheers!

[@markbevan5771]

Good stuff mate keep it up 👍

[@lapislignum]

Cheers, with my new found time I will have to do that!

[@lapislignum]

On subsequent sprockets I used a drill guide instead of centre punching which gave much better results, instagram.com/p/B8sxbb4naD5/ adding circles made it even easier to line up the paper template and the steel it was glued to with the drill guide.

[@6laster]

this is more like the type of engineering i can relate too! just drill some holes and grind the rest away!!!

[@lapislignum]

Cheers! I was going to get a friend to CNC them out of brass but figured I should give it a go. The project has 11 sprockets in it, and a few needed fairly specific geometry which was pretty easy to tune.

[@AB-C1]

Brilliant video thanks 👍

[@lapislignum]

Thanks for watching it!

[@ahmedfarouk1571]

You are very clever, thank you

[@lapislignum]

Cheers!

[@moluguanand6559]

Made true simple I liked it....

[@lapislignum]

Thanks, I need to get to work on the thing these are for.

[@bobikbobikowy5458]

Thanks! i need to make sprocket for ebike motor, and i think you solved my problem

[@lapislignum]

I showed a more accurate way to drill the holes on IG, think I linked to it in the description

[@TheRainHarvester]

If used for a cnc machine, won't any irregularities in the teeth cause jagged cuts?

[@lapislignum]

Probably, I wouldn't even use proper sprockets and chain on a CNC machine, belts or direct drive would be the way to go.

[@jairogurgel3059]

Otima idea obrigado

[@9700784176]

U r the best.

[@harrycreationsledwall5407]

Ok thanks sir

[@thediychannel4650]

fantastic. can you also make a diy bottom bracket and diy head tube?

[@lapislignum]

for a bike? don't have any need to.

[@Gallardo6669]

SUPER video!!!! But please explain: by what did you go to file down exactly equal the shape of the valleys between the teeth??? Could you please explain the rules on how to draw the sprocket?

[@lapislignum]

Thanks! Think of this more a an easy way to make a sprocket than the right way, the tooth shape should be an involute, I made it straight to make it easier to grind with a simple jig, my application is very low RPM, I'd want to use CNC on something fast, or just use one from a bike.

[@buns52557]

Man” your good with your hands good job on sprocket what kind of motor were you using on the sprocket?

[@lapislignum]

Cheers! It's an actuator off a heater box out of a car, they rotate continuously.

[@SlowBrow]

great content bro...engineering with grinder...or latheless engineering...which one is nicer?

[@lapislignum]

Low tool cutting? Dunno, thanks!

[@davidneal4113]

Nice,

[@manahdawod1851]

Hi where can i find the drawing of your sprocket please.

[@JAINIGS01]

RABBIT C3L

[@aceninopis-an5336]

What application did you use?

[@lapislignum]

NanoCAD

[@TABE-O]

NIce one!

[@lapislignum]

Cheers!

[@realexposer]

Which software use used?

[@lapislignum]

NanoCAD or draftsight

[@misrainmikegarciarosariojr7914]

What rpm is that motor spinning at?

[@lapislignum]

5-10 rpm or so

[@scor440]

Nice job is it possible for you to make a template for a chainsaw chain sprocket pitch is measured different than roller sprocket its center to center on three rivets divided by two

[@lapislignum]

I'd need a reason to first, don't have any plans to work with saw chain. There are a number of different chain pitches too.

[@systscript_trainer4043]

Good job! please how do I get this for my rice transplanter? I'm in Nigeria

[@lapislignum]

Any motorbike wreckers around? I'm not familiar with rice transplanters.

[@toonarmybadboy8716]

i need a 4 tooth sprocket at 420 pitch 😂

[@lapislignum]

Good luck with a 4 tooth sprocket, might need to be two stage or make the other one bigger.

[@florianpriller2150]

Can i ask which motors you used at the end? I am searching for a high Nm motor with real low rpm so some informations would be useful :) also very nice build excelent workmanship :D

[@lapislignum]

it's a continuous rotation actuator from an automotive airconditioning module (heater box) I used them because I had a few lying around, from memory they are about 5 RPM and 2 N.m I found lots of more compact motors on ebay that were pretty cheap, but these were free

[@florianpriller2150]

Thanks a lot i already bought one from ebay but it doesnt do the job quite well so i am searching for alternatives :) 2 Nm is to low but thanks for the fast answer :)

[@lapislignum]

What's your application? What speed and torque do you need? Cordless drill could work if you don't need it to be compact, otherwise I imagine it won't be cheap. Oh and excellent workmanship is generous but thanks, my later sprockets are much better, have made about 10 now.

[@abin4237]

@@lapislignum is there any app for calculating the sproket with teeth and all dimensions.

[@lapislignum]

@Abin jose There could be, I haven't seen one. I just did what looked right in CAD based on the dimensions of the chain and bike sprockets I had lying around, and would be easy to make. There are a few videos on how to do it "properly" floating around that explain why they end up looking the way they do.

[@atozexperiments6207]

Sir give me a gear Ap Kaha sa

[@kinjalji2.088]

Yah Garari Kaise milegi

[@masparto9560]

What the last drill number ?

[@lapislignum]

8mm, not sure what that is in feeedomheight :)

[@presstoolsengineering8365]

can you share me PCD and chain roller diameter and pitch for 8 tooth sprocket

[@lapislignum]

PCD is 33.2mm, drill size to accept the rollers is 8mm, roller diameter is 7.75mm

[@kinjalji2.088]

🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@sshutupurface8345]

very cool way to make sprockets, how long do they last

[@lapislignum]

My application is very low speed so should last until the steel rusts, no idea on a bike or something.

[@markhowlett9951]

I use handmade stainless steel sprockets on my mountain bike.

[@lapislignum]

Nice!

[@motoborj6570]

can you please give me the diameter from the center punch....before you make the drilling... thanks..

[@lapislignum]

the radius of the circle the holes are on is 16.6mm (diameter 33.2mm)

[@scor440]

Can you make one for a chainsaw chain?

[@lapislignum]

Probably, I think they are constructed a bit different though.

[@scor440]

Yes they are so are you up to the task to do a video

[@atozexperiments6207]

Help sir , making gear please

[@lapislignum]

I don't understand what you want

[@Karncagibiolagradmlarlailerle]

Can you send the output of Mrb Gear?

[@lapislignum]

The template? Sure, what's your email address?

[@Karncagibiolagradmlarlailerle]

@@lapislignum pdf output

[@Karncagibiolagradmlarlailerle]

❤️

[@JamieTransNyc]

@ 1:51 Nice fake-out!

[@lapislignum]

Haha thanks, I did plan to cut it out with the hacksaw, but it would have taken too long.

[@tiagovazkez9356]

What I wannna know is how to make it into a functional cog in an actual bike

[@lapislignum]

Probably not like this unless you are desperate

[@JorgeRodriguez-ll3bj]

Son pulgadas???

[@lapislignum]

no, milimetros

[@JorgeRodriguez-ll3bj]

@@lapislignum gracias

[@user-bp4uh7sc2c]

НА СКОЛЬКО ХВАТИЛО ЭТОЙ ЗВЕЗДЫ ?

[@lapislignum]

Я не знаю, что вы имеете в виду, хотя я их не продаю.

[@user-bp4uh7sc2c]

@@lapislignum я имел в виду . она не каленая цепь ее сожрет . вот и спросил на сколько ее хватит . просто тоже делаю звездочку на бензопилу из простого железа . думаю ее на долго не хватит

[@lapislignum]

@@user-bp4uh7sc2c Вы правы, это не будет длиться долго или идти очень быстро, сталь немного тверже, чем обычно, но конструкция очень проста, она предназначена для низкоскоростного применения с низкой нагрузкой.

[@mustafagenc7567]

Can you export the pdf file of the draft. ☺️

[@lapislignum]

I could but the design isn't a very good one.

[@mustafagenc7567]

This is enough for me.

[@lapislignum]

​@@mustafagenc7567 try this i.imgur.com/encIEwd.png you can scale to the dimensioned lines.

[@mustafagenc7567]

@@lapislignum Does not hold dimensioning.

[@lapislignum]

hmmm. email sent, hopefully that works better.

[@BalkanFilm]

Can you give me your CAD project?

[@lapislignum]

Sure, will you be cutting it out manually or CNC? I worked out a better way to get the holes drilled than centrepunching.

[@BalkanFilm]

@@lapislignum i would try first manualy, then CNC

[@BalkanFilm]

@@lapislignum but i am not sure can manualy made sprocket spin up to 2650rpm?

[@lapislignum]

@@BalkanFilm This one is going to spin at 5 RPM, I definitely wouldn't trust my design at speeds much faster than that - especially if cut manually. I looked at designing sprockets and there is a fair bit to it, this one I just eyeballed and it ended up working OK.

[@abhishekjoshi2843]

Can u send me diagram print pls

[@lapislignum]

sure, what's you email?

[@darksam6689]

Bro send the photo

[@lapislignum]

What's your email?

[@harrycreationsledwall5407]

Can u snd me diagram print please

[@lapislignum]

Sure what's your email

[@Tvorec57]

Good day. Discard the link with the asterisk file.

[@lapislignum]

Which link? Why?

[@Tvorec57]

@@lapislignum A reference to a sketch of an asterisk. I just came up. That it would be possible to print and paste. I can’t draw in the program (

[@lapislignum]

There is a link to a .JPG of the design in the comments, if it doesn't work email me and I'll send you a .pdf. I'd only recommend this design for low speed applications.

[@lapislignum]

Email sent!

[@woowididit]

SPE can you please send it to [e-mail] that would make my day !

[@andrewbreglund8950]

I don't understand what you're trying to relate to. You should be more specific

[@lapislignum]

what?

[@MyJessmatt]

Hi where can i find the drawing of your sprocket please.

[@lapislignum]

Hi, Send me your email via Instagram and I'll send you a PDF

[@JAINIGS01]

RABBIT C3L