To do it properly You need a variable frequency drive a ''VFD'' who chance frequency instead of voltage your motor underfeed with voltage will warm up and burn its winding ! It's a simple electric law if you lower the voltage the amperage goes up ! VFD are used everywhere safely in industrial environment ! Just try to cut for half an hour non stop and watch your motor smoking ! these fan controller are ok for a ceiling fan with a small motor no more than 3-4 amps and the fan rotation does cool down their slightly overheating small motors ! And these chop saw some are rated 13 amps and others 15 amps and on startup pull near 18 amps for a few seconds !

@zakrizo

3 жыл бұрын

@osw719 you are absolutely correct. This is like putting the car in high gear, and Beasley stepping on the gas to go 20 mph. Where in reality you need to put the car in first gear and step on it to go 20 mph. The power fed into the saw is a little enough over what is needed to turn the blade. I applaud his attempt, but I’m hating the KZread engineers.

@smca7271

3 жыл бұрын

its the difference between a brushed motor, in which you can reduce the voltage with an scr (light dimmer switch,which this little box is doing) this will reduce the power(and speed) versus induction motor (which this is not) and that can have the speed regulated with a VFD and still maintain most of the power

@5002strokeforever

3 жыл бұрын

@@smca7271 that chop saws speed is set by voltage. You could run 60hz 400hz or straight dc, if the voltage is the same it will spin tbe same speed...

@smca7271

3 жыл бұрын

@@5002strokeforever you are so right...with a brushed motor, unfortunately limiting the voltage also limits the power, so at low speeds there is very little power, with ac we usually control voltage with an SCR which reduces the voltage but also reduces the power. If it was an induction motor you can reduce the speed with frequency and maintain most of the torque.

@ryanburton72

4 ай бұрын

So if we have an 14" bauer abrasive chop saw from harbor freight do i need to buy a vfd to slow it down because i bought one of the speed controller like u have and the fuse keeps blowing. So what do i need to slow the saw speed down for a metal blade

I have one of those old saws, and I am definitely going to convert mine soon. Thanks for the good info.

Great idea, and nice hack on the blade and speed control. Thanks Barry!

Dang Barry I wish I'd seen this 4 months back I had a GMC chop saw and always had to square up the cuts because of the blade flexing what you showed would have saved me $300 on a new chop saw good info for anyone that still has one of these thumbs up 👍.

Awesome video Barry! Keep up with the great content.

Think you. For showing how your old saw was able to handle the chop blade. For slowing down the blade. For I have a old Chicago chopsaw that has not had no bearings changed on it or bushings works. Excellent thank you.

I think you should check the power going to the tool, if the variable speed box is just changing the voltage and not the Hz it will damage the motor, in order for the speed to change it must reduce the frequency of the voltage along with the potential.

@jimheflin1446

2 жыл бұрын

omg we are both smartasses brian cheers mate!

@uncletoy774

Жыл бұрын

exactly it's because miter saw use a universal motor which is great at spinning fast with reasonable torque. but not even a professional variac you will still burn up the motor. I also don't quite understand Jim's remark if he's being an ass or just kidding around but if i were going to ruin one of my tools i would be thankful to someone warning me

Cool I have the saw, the speed control and a optical rpm reader....now I just got to get the blade thanks for this video I now have an easier way to cut steel!

Wow. A fan speed controller. What a good idea! I didn’t want to spend the money on those new evolution chop saws. I’m gonna try this!

Very helpful, I have been meaning to convert mine. Now I know how to do it safely. Thanks a million.

This is video is the missing information I needed to see. The other video I saw only showed the person use that same blade but never stated that speed as an indicator for a better controled cut. Thank you!

Thank you so very much! I thought of this too! but the time is not so available. But with your video I don’t have to do experiments, cuz you did it for me already. I really appreciates this video. You got one subscriber.

I got answer from your video for what I am searching for months....thanks alot. keeping on posting such valuable information. May God bless you.

I love my evolution chop saw!!! It’s a dream machine! Glad to see you could retro fit from the fiber discs! I hated those!! This will help people out there I’m sure! Thx for sharing man!

I was wondering how I could slow my abrasive saw to a speed capable of handling cold cut blades and your idea is a perfect solution! Thanks

They make that still demon blade also for a 7 1/4" circular saw too. But the great thing about it is you don't have to do nothing but put it on the saw and go. Its designed to run at the rpms that the circular saws run at. And they make a a 4 1/2" metal cutting disk for an a 4 1/2" angle grinder that is diamond plated that works pretty good. It last really long but is slower than a regular cut off disk. It runs about $14 or so. But they last really long.

@rudyyarbrough5122

3 жыл бұрын

I tried that combo but the rpm of the saw was too high and it warped the blade. Like the video says, the rpm is very important.

Thank you. I stopped using my chop saw because I didn't like the cuts can't wait to try this adjustment

@jerod5636

3 жыл бұрын

Don’t do it like this man. That switch isn’t what you want for this application. It’s going to kill that motor in real short order. There’s a reason why all these saws don’t ship with a switch like it. What you need is something like this en.m.wikipedia.org/wiki/Variable-frequency_drive The problem is that they are more expensive than an entire chop saw.

Thank you. I just got into welding and was wondering how to convert my Delta miter saw to cut metal. Sounds like some great tips !!!!

Thank you for sharing your experience for us to follow. Great Information.

The 7 1/4” steel demon blades can handle up to 5800rpm so there’s no need to reduce speed, you can even use them on a mitre saw

@jamesdeclan7538

2 жыл бұрын

Not the 12 inch blades, bigger diameter means higher surface speed on the edge of the blade, and they do not work well at high speed (not as much torque, and heats up the blade too much)

@haydenyeap2818

2 жыл бұрын

@@jamesdeclan7538 when

I know it’s been 3 years but this video is great. I was hoping to find such a video. Just getting into metal work at the house and was going to get an abrasive saw (affordable option).. can’t afford the dry cut saws. I’ll definitely be trying this out myself.

Wow ! exactly what i been wanting to know !.. thank you ,thank you ! already ordered

Good Video. Now I have to do this mod. Oh and the out-takes at the end are gold...lol...

I had the same HF cutoff saw for 20+ years. Served me well and tough as hell. I ended up selling it after getting a horizontal bandsaw. Your hack will work for light duty work making an occasional cut but as others have noted this technically is the incorrect solution for slowing the speed down. It needs to be done with reduction gearing. What you got will work but will overheat the motor quick. Still i like the thinking and if it does burn up oh well. 🙂

He always does what I do with all my instructions pick it up and pretty much a set it aside

I like the speed controller. Unfortunately for all the reasons you said I got rid of mine before I was aware of them. I looked at using the blade and realised the blade speed had to be slower. I cut a lot of hollow tube for pedal buggys/go karts. I think you may have lost some power as the speed controllers are usually potentiometers and reduce the power to slow the speed. It probably won't become apparent unless you cut thick flat bar or heavy angle. However as its blade speed that has to be slowed for safety I would arrange something that will allow you to keep the speed controller within easy reach so that if the saw slows you can increase the speed back. Its only the same as the modern routers do internally to compensate for load. It's also very useful for softer metals that would normally clog the grinding wheel. Also plastic so you can keep a chop saw in good condition for wood only.

just got a chopsaw today for free and this is exactly the answer i was looking for !

Wow! Thx for the great video. Going to check out the stats on my saw. If amps OK will definitely order using your links. Have subscribed. Thx again👍 Following up, purchased the Vivosun product as you suggested and works great on regulating speed on old 12 inch miter saw! Awaiting the blade on order. Saw some poor Amazon reviews on other brand so get this one. Couldn’t find your links but referencing your video on Amazon review. Thanks again!

Thanks for doing this. I will DEF be doing this to mine. Awesome!!!!!!!

@adytssu

3 жыл бұрын

Do not do it. The speed is too high and the blade will not survive. A blade should not produce sparks

Very cool I'll have to. Convert one. Of. My old chop saws. Thanks

Good info and great upgrade

Great tips My breaker kept popping at first start and was not clean cut I will do my saw same as your idea . Thanks for sharing Like & Share

This is Great! Thanks Barry

I have the exact same chop saw and now I know what to do with it.

Great video sir! Needed this!

Barry great information thanks

Than you for thee video, very clear, objective, and instructive!

Thanks for sharing your new discoveries 🇵🇷

Man I wish I would have known this 8 months ago, sold my Milwaukee chop saw and bought the Evolution 15" chop saw. Could have saved me some coin. Great video.

Great video, will try it out. Thanks!

Awesome video!! Thanks for sharing

Just learning about Diablo blades those things are the shit they blow my mind I put one on my little cordless 7 1/2 inch saw I cut the shit out of mild steel all day long and the blade looks brand new it’s crazy the technology they have now the ceramic carbide teeth are indestructible

Various people have considered this but if you slow the motor down electrically it loses torque. What you need is a 2:1 mechanical reduction.

Much thanks. I've got a 14" Dewalt that runs at 4k rpm. I'll FINALLY do away with that fiber disk.

Hahhhhhhh I was stuck with a dwalt abrasive saw An with this trick I basically turned it into an evolution saw 💪🏽💪🏽💪🏽💪🏽💪🏽thank u Man💪🏽💪🏽💪🏽💪🏽💪🏽

Very informative exelant video keep up the good work

the new blade is great, just take in mind, like a bench saw some steel might have some "harder" impurities... and them teeth might go flying of and about... always keep that iron guard on... or u might get shanked.

Thanks, I’ll be doing this !!! 👍👍

Im gonna do that see iv been wanting a dry cut but dont have the 700 bucks to get one and a normal chop saw here in Canada is only 200 bucks but hate how much the abrasive walks on the steel.. thanks for this good sir

I subscribed! Good video!

Good job! Stay healthy

AWESOME VIDEO

This is what i am going to do cheers man.

great idea !!!!

Awesome video man thank you very much

the ending is the best haha

AvE did a video trying to do what you did and the issue he had was it kept popping the breaker but you don't seem to have that problem at all! Would love to see a follow-up video after a bunch of cuts to see how it holds up. I just can't bring myself to pay the price of the evo saw when it's basically the same thing!!

@jodaddysworkshop786

3 жыл бұрын

I do plan a follow up. Thanks.

@Agustin-jo8mv

2 жыл бұрын

@@jodaddysworkshop786 is the follow up ready? Hahaha. 😝

@linemang4337

Жыл бұрын

@@jodaddysworkshop786 Would this work on a 14 inch chop saw?

Sait makes some thin kerf abrasive disks that work good on low hp chop saws.

i considered doing the same thing because i have one of those rheostats on my blast cabinet for the vacuum. decided against it because i don't know enough about electric motors but i figured less electricity would also limit the saw's power/torque for cutting. so i ended up dropping a few hundred on a metal chop saw. learning experience i guess.

That’s cool ! Thanks I’ll try that

Thanks for this video

Now put a guide plate on it and youll have a giant skilsaw for cheap

Barry I have been on the fence about doing the very same thing with my chop saw. I hate the fibrous wheels and the glide in the cut especially with angle iron. I am definitely going to purchase the blade you used and I am sure I will find a link in your store. Thanks once again.

@jodaddysworkshop786

3 жыл бұрын

Gene, there are links in the description and also on my Amazon page. You will need to reduce the speed if you have one like mine.

@3xzena

3 жыл бұрын

Already found them. I have a Makita that looks identical but I need to check the speed before I order.

I bought an evolution years ago for the knife Shop when they first came out. I am cutting High Speed Jet Turban Steel. I didn't care for the combo wood/steel blade as it has a lower quality carbide in the tips. In ordered two of their blades designed or stainless steel. and has a very High Tech Ceramic Carbide for he teeth. You do need t use caution and start the cut gently not to shock the teeth. I I use only 154-cmp steel. Very abrasion resistant. I have neve needed to change out he blade from the first stainless steel cutting blade. There a few ,(very few, chipped teeth, yet it cuts as new. The Evolution SS blades are expensive, but miles beyond others out there. I have on a few occasions had to cut fully hardened steel and the blade didn't seem to know the difference. Worried the hell out of me as these blades are expensive, yet no damage was done in the cutting. KnifeMaker.

whether the speed controller reduces hz or volts if it reduces the volts it also reduces the power

You actually have an arrow on the stationary part of the guard.

Your saw will burn up soon. Your limiting voltage to slow it down and that is not good for your motor. Not criticism, just trying to help.

Good Demonstration

The motor will fry prematurely watch aVe video .

I bought my evolution cold saw with a blade for 180$ at home depot. Very much worth the investment, byr don't ever try to cut hardened steel with it- point is you still need an abrasive saw for that stuff

@JonJong

Жыл бұрын

Which model did you buy? I found the Rage 4 at Home Depot but it's rated at 4,200 RPM. I would have to go with the 355 or 380 to get 1450 RPM.

I’ve thinking about doing this about 5 yrs now and had always planed to get a router switch from harbor freight,( same thing)just haven’t gotten round to it.thanks for proving it out for me.wish I’d of gotten that switch earlier for other things

I'm going to put the smaller 7 and 1/4 blade in and be done.

Hey man I need to cut two things I need to cut wood for a shed project and I also need to cut a trailer coupler witch is 1/4 thick I'd like to buy a saw that can handle wood and thick hard metal my budget is a big deal so I'd like to know what saw should I buy to cut metal and 2x4s ? I don't mind buying multiple blades and 1 saw I want a saw that will cut the metal perfectly.

Feathering the trigger works. "once you get the hang of it"

Ese disco sirve para una la ryobi que es casi igual que la de usted?? Pero el diámetro del disco es de 355,me ayudaría bastante saber que le vale porque el corte se ve muchísimo más limpio que con el disco que trae

Such a loooooong video! Just get to the point...the power switch!!!

The fiber disk will also explode and parts of the disk fly everywhere.

I was curious about the cutting speed so I calculated it out. Your saw at 3800 rpms at the shaft and a 12' blade, the cutting speed is just shy of 4000 rpms. If your reduce the speed to 1700 rpms the cutting speed is ~ 1780 rpms. This is based on no load calculations. Not sure you wanted this much information, I was just curious. Your rule of speed setting to about half of the base speed through the fan controller is very close. Thanks for the video.

@tazblink

3 жыл бұрын

What are you talking about?

You can get a metal cutting blade for that chop saw that is for up to 5000 rpm. The draw back is the price. The 14" high speed blade is $215

@GREATxSCOTT

2 жыл бұрын

Where at bro??

@michaellarkin8049

10 ай бұрын

I want a 14" one for high speed, couldnt find, only diamond ones

of what amp. It is the motor of the cutter?

Great ideal. What is the life of the different blades?

@jodaddysworkshop786

3 жыл бұрын

No idea.

Is there's a way you can check the saw RPMs? I'll like to do it on my Ridgid but I'm a little leery...

@jodaddysworkshop786

3 жыл бұрын

I don't know. Sorry.

I have an Evolution "RAGE3" compound miter say which I love for steel, aluminum, and wood, but its blade is wearing out. I checked the Amazon feedback section and they are widely differing blade life figures posted. As high as "hundreds of steel cuts" and as low as four or five cuts. How much does technique matter in the blade life numbers? Does a fast vs. slow cut help? Does a little cutting oil help? I'll probably buy one anyway, but I'd like it to last at least a year or two of hobbyist usage.

@jodaddysworkshop786

3 жыл бұрын

Technique and speed make a huge difference. A slower cut keeps the heat down, and prolongs the blade. Can't say if oil would help or not. Let the blade make the cut rather than forcing it through.

@shermrock345

3 жыл бұрын

Evolution blades wear out quick for a cold cutting saw. That's all i hear about is how they suck.

Great video, thanks, you fan speed controller is now $28. 😟

The arrow for direction is on the guard .

Update??? Did the motor burn out?

Awesome , I’m happy I don’t need to buy a 250$ saw now

How about an update sir? Is it still working?

Great video. What was the rpm rated for that Diablo blade?

@jodaddysworkshop786

3 жыл бұрын

Not sure.

@barneysievers2888

Жыл бұрын

I believe he said 1800 rpm

Would the still demon blade cut 1/2 rebar?

@jodaddysworkshop786

8 ай бұрын

Not sure.

You don’t need to slow the saw down, just buy a blade with the correct speed rating.

Any idea if I can do this with a wood miter saw and get good results cutting metal?

@sharonhampton5173

3 жыл бұрын

I use a 10” metal saw on my miter. Works fine

@jodaddysworkshop786

3 жыл бұрын

Can't say for sure.

@shawnhollett4385

3 жыл бұрын

I use a kobalt 71/4 saw with matching blade. It's good. Ots under 5500rpm so it matches

@benz-share9058

3 жыл бұрын

The RPM limits for the circular saw versions of these Diablo blades (about 7 inch) are compatible with some wood-cutting miter saws. The arbor diameters are also compatible in some cases, so you may be able to simply swap the wood blade for one of these Diablos. No speed control would be necessary. I've done that on steel and stainless steel (thin wall tube) and had excellent cut quality. I can't say much yet about blade life though.

@PaydayGabeBCNV

3 жыл бұрын

@@sharonhampton5173 ,,🙋‍♂️Hey,, I just purchased a used 10" Delta (5200 no load rpm) for some DIY metal fab. What blade did you get and where?? How is it holding up?? I will be using mild steel. Thanks for your reply 👍, G.

Good 👍

👍👍

Thanks for the great video! Can you tell me..... How can I cut Wood with my chop Saw? Can I just get a wood cutting blade with the same size Arbor? Thanks in advance for answering.

@jodaddysworkshop786

3 жыл бұрын

I can't say for sure, but I would think it's possible.

Its all fun and games until you trash the motor. A fan has a constant load. Chop saws do not. As some others have pointed out, this "speed control" device wasn't meant for industrial apps like a saw. For very occasional use, on light duty stuff, enjoy. The minute you load that motor with some serious cuts on something thick, you will let the smoke out. Same thing happens with router speed controllers.

Have you had any issues with the saw since the modification?

@jodaddysworkshop786

3 жыл бұрын

I did have a fuse blow when I tried to cut an extremely hard piece of steel. Mild steel? No issues.

Sir John, what brand your band saw?

@jodaddysworkshop786

3 жыл бұрын

Not sure. I bought it a long time ago.

How did the saw hold up after 2 yrs? Thanks

@jodaddysworkshop786

11 ай бұрын

It worked fine but has its limitations. I actually received a saw from evolution power tools that I now use.

@danhufferdoutdoors

11 ай бұрын

@@jodaddysworkshop786 I have one of their sidewinder style saws now, it's pretty handy, but you better have the faceshield on.

Any updates is it running well?

@jodaddysworkshop786

3 жыл бұрын

It seems to be working fine.