Making A Broach To Cut Keyways

[@hairyfro]

This channel is the epitome of "done is better than perfect." The number of projects you've completed that seem beyond the reach of a little home shop is really impressive.

[@ThatPNWGuy2024]

Math is important, I should’ve paid a lot more attention in school.

[@adamdicerto5195]

​@@ThatPNWGuy20240

[@This-crazy]

Sunday morning coffee watching Artisan Makes and Blondihacks making great projects on small machines.

[@artisanmakes]

Add clough42 and rotarySMP to that list

[@KrAvE4KaRnAgE]

I can almost smell the bandsaw build series! 😆 Great video bud!

[@Zardwark]

It is an unending source of wonder that artisan makes achieves so much with what? A mini lather, a cheap mill and a hacksaw. The whole shop must be in the order of 1,000 AUD. Quite amazing.

[@innokentiy-alaytsev]

AFAIK, you can periodically back the press a little bit for releasing the tension and preventing the broach from breaking in case something is not aligned good enough.

[@GoPaintman]

Just an FYI for future. You can 3D print the bushing for keyway cutting. I’ve done so in the past and never had an issue. Just make sure you leave a bit extra at the bottom to help support the cutter. Also 100 infill helps.

[@IkarimTheCreature]

I don't think he will ever incorporate 3D printing into his videos, since he's more on the trad machinist/blacksmith side of things

[@TheMonthlyJack]

I'm a 110% infill dude. 3d printing is just really healpful.

[@MattysWorkshop]

Gday, nothing wrong with that cutter, it worked great, top job, cheers

[@haydenallen888]

I’ve been watching for 1.5 years waiting for your cast gear series to come back. I knew we were making some progress with the press!

[@KBLIZZ333]

For a crisp parting edge where the weld meets the unpainted base table surface, you could always tape right up close to the weld and then brush on some Vaseline right up to the horizontal edge before painting. Not sure I'm explaining that right but the paint wont adhere to the Vaseline and it can be quickly, and pretty accurately applied to the uneven area and cleaned off rather easily afterwards. I apologize, I'm shit at explaining things but I swear it works. An old industrial machine equipments painter showed me that trick in the late 90's and I'll never forget it.

[@Kineth1]

Silly suggestion: grind the broach even thinner, then shim it to the left/right and do two passes so that you can keep to the standard key stock.

[@steveflorey8663]

Well done as always. I like how you get around the problems you sometimes create for yourself. I'm looking forward to the next episode.

[@artisanmakes]

Thankyou. The next episode should be an interesting one.

[@GablesDude]

Voted #1 for excellent machining projects w/o use of a bandsaw

[@PaleoWithFries]

I'm glad you did it a second time so you showed that the first time was not a fluke.

[@artisanmakes]

That and I needed to see if it would broach steel. Aluminium is a bit too easym cheers

[@vivigarr]

I just ordered an 8x33" bench mill. Can't wait to get started in this hobby, you've been such an inspiration :)

[@itarry4]

Clickspring shows you how to make a square broach which you can easily adapt to make yours that little bit better if you want to, I mean it seems to do it's job plenty well enough but it's there if you want. He also shows how to make loads of different tooling etc and his work is exceptional. He shows ways to get precision in cases, where getting even close is hard for most showing ways to set up your lathe etc to get the best out of it no matter what. I mean you seem to have managed anyway but honestly if you're not already watching Clickspring you really, really should as he takes what you can do in a small shop to the next level.

[@TheUncleRuckus]

You should try some Heat Treatment Paint, I use it for heat treating knives and it works really well to stop scaling. Just don't make the same mistake that I made and others have made and only apply a single coat. Heat treatment paint is a paint and like any paint it requires several coats to get full coverage. I've found 3 coats is good anything over that is overkill and a waste. Great video as always! 👍👍

[@johnrussell6620]

At 15:20, you could hollow grind the sides of the broach maybe 0.001 to give some side relief to the cutting teeth while traveling through the guide bushing and the side of the keyway slot being made. Excellent video.

[@artisanmakes]

You probably could and I'm sure that might improve things. I'm not sure how i would with my set up. Cheers

[@johnrussell6620]

@@artisanmakes Does your mill head tilt right or left? You could use your cup grinder on the tilted head and run your table left & right until you got the relief you need.

[@artisanmakes]

Unfortunately mine doesn't, that's the next. Model up from mine which does. Cheers

[@MyLonewolf25]

@@artisanmakes just mount it on a sine plate

[@pendarischneider]

Would a ball end mill of a size to give a shallow "hollow ground" effect along the line of teeth do the trick. Fiddly to set the piece so the cutting line is correct (but doable with the holding vice). Then the side of the cutting edge gets relieved while the full width of the cutter is engaging the guide.

[@gordoncouger9648]

Nice job showing that a workable broach can be made in most of our home shops. Honing the broach teeth' gullets will reduce the friction of forcing the broch through metal. I found using a ceramic hone as the last step in sharpening high-speed steel lathe bits gave them a longer cutting life. I had to sharpen a profile bit every 6 hours the ceramic hone increased the tool life to 9 hours.

[@joewhitney4097]

Great video, great build. This was an area I wondered about fabricating my own broaches. Your video helped me understand the dynamics and give me confidence of trying to do one myself. Thanks for sharing.

[@artisanmakes]

Great to hear. I thought it would be quite difficult but the geometry seems to be quite straightforward. Cheers

[@ImolaS3]

Outstanding!! Been a subscriber since the early days, and your channel just keeps getting better and better

[@artisanmakes]

Thankyou

[@sobertillnoon]

You'll never guess this. The hole in a lock where you put your key is in fact called a keyway

[@65cj55]

Key Hole.

[@nikkovellios]

😮 shut up! 🤯

[@bosanaz2010]

hey i tipp for heattreating. Just get your self some Sheetmetall for heattreating,You can pack everthing in their nice and tight,Just fold over the corners 2-3 times and hit them flat with a hammer. To prevent oxidation.Just place some paper next to the part.The bruning paper will use up all o2

[@TalRohan]

this is something I need to make for making the drive pulleys on my belt grinder ....thanks for the how to, because I wasnt too sure lol

[@johnmarshall4433]

I love your work. I am going to attempt to make a broach myself. Thanks.

[@be007]

good result ! cheers ben.

[@harmlesscreationsofthegree1248]

Brilliant jig sir! I really enjoy how you solve problems in a practical and simple way. Explanations are spot on too, even I can understand them.

[@merc7105]

Lovely cheeky script. Nice build. Banger vid, cheers.

[@artisanmakes]

Glad you enjoyed it

[@mickgentry8128]

Great build ! The press was a great build adventure. Your channel keeps getting better with each week's episode, I always enjoy watching Cheers

[@HexenzirkelZuluhed]

ImPRESSive. Also: you might not be the LPL, but you certainly are the keyway broaching machinist, now. I'm always impressed with the way you make tooling in your shop.

[@ThatPNWGuy2024]

Nice job! You want to make sure you’re lifting the ram off the broach every so often so it doesn’t tip the whole setup forward. That causes more slop in the keyway. Cheers!

[@jessemahoney9740]

That came out so good!

[@rjung_ch]

Thanks for this one as well! 👍💪✌

[@enzowilson345]

Nicely done 👍

[@65cj55]

Works a treat.

[@McKildafor]

One more successful project. Thanks for the video.

[@bustednuckles2]

In all the years I have been watching your videos, you have never, ever failed to amaze me in some way or another. Putting that pin in to use for even spacing was genius. Well done yet again. BYW, looking at some of the comments, I see I'm not the only one waiting for band saw build.😂 👍

[@christopherl.potter3915]

Best intro ever!

[@kabal911]

2 broach videos in 1 weekend. Nice

[@y2ksw1]

If you are going to make custom broaches, you are about to going to be one out of five companies world wide.

[@artisanmakes]

An exclusive club eh. Cheers

[@zacharyschaafsma2523]

very impressive ! now i want to make a press

[@sypernova6969]

ok. I can`t see a note about a patreon. you need to get yourself a partreon. IF ONLY to get yourself a metal bandsaw. my arm aches just watching you!!! (awesome content, and the humour is exquisite. thanks for the work).

[@WilliamBlakers]

Another great build and video.

[@aaronfritz7234]

Professional results in a hobby shop.

[@seansysig]

Very successful brochure fab way to go.

[@ddoherty5956]

Great work 👍🇬🇧

[@greglaroche1753]

Great job!

[@ennybm]

Nice video. I did this at a bigger scale and I found this work the most terrifying. I always feared the broach would shatter and put schrapnel in my face.

[@robertbroun3459]

... I sense the hacksaw becoming a meme for this channel

[@ddoherty5956]

Three words "Metal Cutting Bandsaw" it was a revelation 🤣

[@DodgyBrothersEngineering]

I cringe every time I see him cut something by hand. You would think with his skills we shouldn't be seeing hand sawn parts.

[@tomcobey4015]

He's said more than once, space is a big issue in his shop. He doesn't have the space.

[@billshiff2060]

Nice work pal! 👍You didn't go over the math for the DOC per tooth etc. I make it about .005-.006 DOCPT and that gives ~ .080 Required shim thickness to step up. I think it will work a lot better if you grind the back clearance with your cup wheel to sharpen the teeth which are eroded from the heat treat. You might also consider alternating interrupted cut on each tooth. That give a place for the chips to collapse into.

[@michaelsimpson9779]

Nice work

[@jpwipeout99]

Awesome job!

[@Speedflyer2000]

Love your videos! 😊

[@artisanmakes]

Thank you

[@allanpowell7208]

Good man. Your site gives a great instruction to many who have never been educated by metalwork classes as most of my generation was. The videos are a treat to look forward to. In age ascendancy Tubalcain, Abom.Artisan Makes. Who would want more? Cheers matey.

[@mrmuttley]

O1 steel is very forgiving for hardening. thats why I used it for knife making.

[@DodgyBrothersEngineering]

Works like a charm.

[@hersch_tool]

Fantastic job!

[@Andrew_Fernie]

Great job 👍

[@daveb3910]

I did that once with a parting blade and a grinder. 10$ parting blade was way cheaper than the 80$ specialty broach I needed

[@DuckshotProductions]

Return of the hacksaw

[@lukeamato2348]

Nice, gives me some ideas

[@toblexson5020]

Nice! It's good to see another expensive workshop tool closely matched in a home workshop. I'd even go as far to say that if someone really needed one of these, something like your design could be done with a file and some time.

[@6NBERLS]

Most excellent.

[@rickpalechuk4411]

Most excellent! Cheers

[@ilikewhenitgoeswub]

Try ATP-641 for protect parts during hardening

[@garymucher4082]

Sure beats a hand file... Thumbs Up!

[@buundy]

Goog video! Can you tell me the model of the press?

[@Lone-Wolf87]

Well done. Better than having nothing. 👍👍👍

[@shadwellsong]

Yay! That’s great

[@luissilva8732]

I get winded every video just watching the 2 second cut of this man sawing through andromeda sized lumps of steel with a freaking hacksaw. Im fully convinced this man will have a working small homeshop made aeroplane before he gets a freacking bandsaw.

[@SELG88]

the old lathe 🥺

[@juliodelasheras2683]

100% for trying to do something and never giving up

[@Kmnri]

Looking great, one day you will get bandsaw 😂

[@DavidR8]

Very creative approach. Was the depth of the broach dictated by the diameter of the bore in the work?

[@artisanmakes]

Yes it was. It is a 20mm bore so I was able to make the broach itself 15 or so mm deep

[@christopherdriscoll7282]

You can heat treat o-1 with a torch very easily. Just heat the part till a magnet doesn’t stick and quench in oil/atf.

[@Jaws677]

He is just trolling us now with the hacksaw

[@mike111smith7]

Genius thinking with the pin, to make even distances for the rest of the teeth's! :-))

[@JasonAWilliams-IS]

you should get some stamps to mark this as a 5mm broach before hardening

[@checoleman8877]

When you're heat treating parts use anti-scale compound or use an air hardening steel with stainless tool wrap. You'll have much better results.

[@machineworld1873]

Very injoy ❤😊

[@jimwright3236]

You stated that the taper from end to end of the broach was 1 degree and that the teeth were relieved 11 degrees. How many degrees are between the teeth, I mean the angle away from square that forms the cutting edge?

[@artisanmakes]

It's about 30

[@jimwright3236]

Thank You@@artisanmakes

[@davematthews7686]

Did you leave the broach full hard? I didn't hear mention of tempering it back.

[@ErikBongers]

Since he didn't quench it red hot, I doubt it's fully hardened. Two wrongs making a right.

[@artisanmakes]

I did temper it back I just didn't do it on camera. The quench left it 60-65hrc and it was tempered back to 50-55hrc. Edit- autocorrect messed that reply up

[@OuroborosArmory]

You also need to quench it before you remove the clay. Otherwise it will oxidize as soon as you expose it to air

[@artisanmakes]

A small bit if of oxidation is okay. But I wouldn't have thought that the part would have cooled down fast enough if i left the clay on. Cheers

[@jyvben1520]

2:00 press is not tall enough ? just need a hole in surface beneath or jack up the press, too simple ? or can the press work horizontally

[@whiz3528]

I programmed an NC lathe to cut keyways, just stop the spindle zero RPM's, feed the cutting tool at about .015 depth each pass. Cut a 1/2" key in about 35 seconds., no broach needed.

[@artisanmakes]

I've seen a few people do that, much easier than broaching

[@cousindave1]

He's still using that hacksaw!

[@SateenDuraLuxe]

You're next project should be building an electric heat treating oven, because you're current setup could use some improvement.

[@wizrom3046]

Impressive result. 👍 I noticed that you did not hacksaw the 5mm steel haha

[@enginrd]

I agree. And… 4:12… oh, but of course he used the hacksaw! 😂

[@artisanmakes]

I sure did. I didn't record all of it but annealed O1 tool steel isnt that hard to cut. kzbin.info/www/bejne/nYevaIOjiZmcjs0

[@wizrom3046]

@@artisanmakes yeah but you milled most of it away, you could have hacksawed that... 😎

[@artisanmakes]

I can hacksaw straight bit probably not that straight :)

[@jimsvideos7201]

It isn't my original tip but as you press down on the broach, let off occasionally to allow it to find its own happy place on the face of the ram.

[@mitchwilson8124]

Where did you get the tool steel in Australia?

[@artisanmakes]

I use edcon steel. They shipped it out to me. I think think it was $30 for a piece of 5x25x500 o1 tool steel.

[@Beef4Dinner22]

You said the broach was about 30um undersize, but you didn't say if it cuts exactly at 4.7mm. If it cuts a little oversize, 3/16" is ~4.76mm, so you may be able to buy 3/16" key stock and not need to grind down 5mm key stock. Assuming 3/16" key stock is available to you, I don't know its availability outside the US.

[@artisanmakes]

I haven't the tools to properly measure it bit I would assume that it would cut somewhere around 4.97mm give or take. A little bit bit sanding was all it took for the key to fit tight. Cheers

[@RichieCat4223]

3:00 How come you don't have a band saw ?

[@Petrolhead66]

Hi, can u tell me what grit the cup grinding wheel is please. Also what size is it

[@artisanmakes]

It is a Norton 100/76mm tapered cup grinding wheel, this is the medium fine grit. I think I paid $40-50 for it.

[@Petrolhead66]

@@artisanmakes thanks for the quick reply

[@u8qu1tis]

I am Im-pressed!

[@rooikatza]

Brohh,how long did it take to cut toolsteel with a hacksaw?

[@DAVIDDAUPHIN-n5n]

not hardened when it was cut.

[@artisanmakes]

Not long. Maybe a minute. It's annealed tool steel and a cobalt hacksaw blade

[@rooikatza]

@@artisanmakes one more question,I am no machinist,just want to start the hobby,But why dont you just cut your stock ect. with a grinder?is there a reason behind it

[@artisanmakes]

I do grind stuff but not if I can avoid it. It's messy and I have to cover the ways on the lathe to keep grit off of them. Plus it throws grit and dust on the camera and lense. I ruined a camera lense focusing motor once with grit and I would want to avoid that again. That is why I don't do it if i can. Cheers

[@rooikatza]

@@artisanmakes Awesome stuff,all makes sense now....thanx!🫡

[@Blue.4D2]

⭐🙂👍

[@markramsell454]

I believe the expression is: They are both identical except for the one on the left.

[@willardlentz3044]

He is watching too much This ole Tony 🤣

[@zggtf211]

Instead of using shim stock, why not make a few more guide bushings that have less depth. That would allow even deeper keyways with the same tool.

[@zggtf211]

If that won't work, why not?

[@dondehne5370]

Do you use a text to speech program or is that your voice?

[@artisanmakes]

no thats me

[@willardlentz3044]

your ToT viewership is showing 😁

[@hampopper3150]

This hole time you could have done it on the lathe. I like to cut a rounded slot with a endmill on the mill and finish it up broaching it square on the lathe.

[@ddoherty5956]

Hole time or Whole time, either way I thought it was a good pun🤣

[@hampopper3150]

@@ddoherty5956 🤣 Supposed to be whole time but hole time was just to good to pass up.