Cut Lexan Polycarbonate Sheet With Circular Saw

Chose the correct blade for cutting a polycarbonate Lexan sheet with a circular saw. Video shows blade selection, how to set up the saw and cut your sheet safely.
Link to video showing how to cut Lexan polycarbonate with a utility knife: • How to Cut Lexan Polyc...
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[@Know-How-Now]

There is another Know How Now video that shows how to cut a thinner Lexan Polycarbonate sheet: kzbin.info/www/bejne/Z6jEgHeoictsfpo There are hundreds of videos at Know How Now, subscribe so you can always find the channel…. It’s free. I always respect your time and do my best to keep the videos brief, but informative. Check out the channel with this link: www.youtube.com/@Know-How-Now/videos

[@albertahunter5743]

Thanks. Great informative and concise presentation.

[@Know-How-Now]

You are welcome.

[@dadduorp]

Love how you took the time to list safety tips. Very much appreciated! I need to cut a circular hole in a 1/4" thick piece of polycarbonate. What do you think about using an oscillating tool?

[@Know-How-Now]

I haven't tried an oscillation tool. Heat might be a factor. I'd try a test cut first and see what happens. Can you use a hole saw? I don't see that option here. www.weetect.com/cutting-polycarbonate/

[@BobBlarneystone]

Good. I've used a Japanese hand pullsaw successfully and smoothed the edge with a sharp handplane. Slow but safe, with good results. After all, there are few prizes for being speedy, and none for getting injured.

[@Demebeso714]

Is there anything you can't help us with?!!!!! Thank you I needed to do this a few months back had no idea how to even begin.. Thank you so much.. I had the wrong tools.. lol.. Another Great Video!!

[@Know-How-Now]

You are welcome, it's my pleasure to help. Thank you for commenting, I enjoy hearing from my friends. Be careful with the saw.

[@markechler9502]

Very informative. That Black and Decker saw must be more than 20 years old. They don’t make them like that anymore. New fan of your site.

[@Know-How-Now]

Lol, the Black & Decker is a family heirloom, it belonged to my dad. He was a carpenter and used that saw for work. I'd guess it is 1970's vintage.

[@goodvibes0101]

A good safe and thorough how to content 👍

[@arteuron]

Always helpful. I was wondering if I could use a csaw to get this done. It’s such a coincidence,I just bought some Lexan recently! Keep up the videos, don’t ever stop!

[@Know-How-Now]

Hi Alan, it's nice to hear from you. If you are using a straight edge and it's a long cut, make sure the straight edge doesn't bow in the middle, allowing the saw's shoe to slip under the straight edge. You may already know that can happen.

[@MarySchipke]

Thanks for all the pro tips.

[@Know-How-Now]

You are welcome.

[@ChrisBusy]

Clear and detailed. Wish everyone else would cut the fuzz ... Great info all around. If I knew what you know, I'd present the material in the same manner... New subscriber now! Thankyou, cb

[@Know-How-Now]

Welcome to Know How Now, Chris. I do my best to respect your time and get to the point.

[@matambale]

Thanks for this - information on cutting plexi with a circular saw is hard to find. My last cut was on 1/8th inch, so a scoring tool worked perfectly - although it took a long, long time.

[@Know-How-Now]

You are welcome. It's nice to hear from people who watch the videos.

[@towoperations]

Very helpful video. However I was admiring your antique roadshow style skill saw. I actually just picked up a jigsaw and skill saw just like that. Thanks for the help..

[@Know-How-Now]

The saw belonged to my dad. He was a carpenter and would have used the saw until the early 1990's. I think he may have had the jig saw.

[@daniel64padilla]

Thanks for the video. Definitely answered my question... cool saw!

[@Know-How-Now]

The saw belonged to my dad. He was a carpenter. He used it until the late 1980's. Now my brother and I have shared custody of it. We have his Millers Falls Miter Saw too, I use it in this video. kzbin.info/www/bejne/jl6qi6SPi6apaZo

[@lmc333]

This video is very informative !!

[@Know-How-Now]

Thanks for the compliment!

[@davidjohnson4874]

Thank you , i watched 10 videos before finally finding this one anx actually helpful advice. Now i know how lol

[@Know-How-Now]

You are welcome, David. I try to make quality videos.

[@michaell1665]

Thanks for your videos, particularly on cutting Lexan. I am cutting the thin size, likely 3/32" for a window pane replacement. I might try the scoring technique first.

[@Know-How-Now]

You are welcome, Michael. I do my best to make quality videos. If you try the scoring method, the blade gets dull quickly, you might need a more than one blade. Also, make sure you clamp everything down because you have to apply some pressure. You don't want anything to slide.

[@christ9359]

I would add that it can be helpful to set up a metal ruler (or other straight edge) to use as a knife guide while cutting.

[@michaelcintron2568]

What kind of blade should you use? Great instructional video!

[@Know-How-Now]

I don't know what size blade you need. I'd recommend going with something close to the recommendations given in the beginning of the video. For sure you'll want a carbide tipped blade.

[@stevebastien4787]

Thanks so much

[@Know-How-Now]

You are welcome.

[@24rxman]

Which scoring tool would you recommend on 1/8 inch lexan?

[@Know-How-Now]

You can try a sharp utility knife, though 1/8" is going to be tough to cut without a jigsaw or a circular saw.

[@smashingpumpkin1986]

If you can sandwich the sheet between two sacrificial pieces of plywood I believe it cuts a lot better

[@gordhildreth4630]

Add Varsol as a cutting fluid to wash chips out of cutting slot.

[@martingage5323]

Hi thanks for the information, would this work with 8 mm thickness

[@Know-How-Now]

The sheet I cut in the video was 1/4 inch thick. 8mm shouldn't be a problem.

[@-8_8-]

Good job. With a band saw, the number of teeth has to do with the thickness you are cutting, and directly affects feed and speed.

[@vero0992]

Whatcha making with it?

[@Know-How-Now]

I'm making a window well cover with a cat door. I made a cat door in the basement window, but in the Winter when its really windy the door blows open. I will face the vestibule door away from the prevailing winds. I wish I could figure out how to stop Melvin from bringing creatures into the house. I almost stepped on a dead vole in my dining room the other day. I didn't see that downside to the door.

[@vero0992]

@@Know-How-Now Haha! Very cool. Cats will be cats I suppose. Thank you for continuing to share your projects!

[@Know-How-Now]

I didn't make a video on how to make the vestibule... how many people need a vestibule for their basement window cat door? lol. I did do a review for the ideal cat door, you can see the almost finished vestibule in the beginning of the video. I glued to polycarbonate pieces together with SCIGRIP #16 glue. I clamped the cat door on some pvc board, then used silicone to glue it onto the side of the vestibule that faces away from the prevailing winter winds. I had some wrong size weather stripping that Anderson sent to me for my window rehab project. I siliconed that onto the edge of the vestibule that goes against the house. So far, I am pleased with the finished project. Here's a link to the video: kzbin.info/www/bejne/hGfNl2Voab2njas

[@davetaylor2088]

@@Know-How-Now It just means your cat loves you... it's hard to interpret it that way when you have stepped in something in bare feet on the way to the toilet at night though, right?

[@Know-How-Now]

Lol, it's hard to feel the love when that happens.

[@pacvend]

I tried it on my table saw and lexan started to melt after 8" into the cut., I give up

[@Know-How-Now]

Maybe you have the wrong blade? I recently tried to cut a table top made with MDF board with the blade used in this video. It heated up. I consulted with my cousin who has spent his life working with wood. He tried cutting it with his jigsaw, it heated up & warped that blade. We ended up taking the table top to his house to cut with the table saw.

[@manuelgonzalvo9767]

yessssssssssssssssss

[@gordhildreth4630]

Nice finger nails!

[@prosweep7801]

Get to the point! Toooo boring

[@Know-How-Now]

The video has over 22,000 views, 445 likes 12 dislikes. You are the only one complaining that it rambles on about nothing important. It's always people who have no videos who are the harshest critics.

[@dadduorp]

It's a 4-minute video and it covered a LOT in that short span of time. Maybe take your meds next time.

[@WZDIESEL]

@@Know-How-Now no, i am too