Thanks. This one was a gift for a mathematics professor. The boards that I actually use at home are just white poster-board glued to the back of the glass with spray adhesive.
not only i admire your craftsmanship, i admire your interesting personality and the smart tips that you put on your videos. i loved the math part as well if i was not an atheist, i would say may the gods be with you!!!
i thought this was only about the board. i only watched it because it was the only one of your videos i had left. so glad i watched it! this is exactly the kind and amount of math i like. learned something i'll use in the shop!
Thank you. I agree- it makes it look less like a sterile piece of office furniture. I hope you liked the math bit; MrChris had once mentioned how you love that stuff. I trust that you will check my math, so I don't end up looking bad.
That being said, thank you for the tutorial on the glass DEB. I'll be making one of these very soon. The cheap DEB material from the big box stores is absolute crap.
lol thanks, but don't forget that this vid is edited; in real life this stuff is really hard to explain without stopping to scratch your head. Check out Lindelof, he is really good at explaining hard concepts. But as far as useful carpentry math goes, I promise to show you more in future vids. Thanks.
Basically nothing. I used a single 2x4 and a can of spray lacquer, which combined would retail around $7. The remainder was stuff I had around the garage. If you can find a piece of tempered glass, the rest is easy.
pocket83, I fell on your video while looking at DIY projects for whiteboards and bulleting boards. I find it nicely made, especially how you wrap things up at the end with the math. Keep up the great work.
Thanks! I get such nice comments on my videos, with the exception of that stupid pinball video. I really appreciate you reminding me that there still is hope.
That was so cool of you! Thanks loads. I must admit I was busy taking notes and doing your math with you. I'm going to send this video out again!!! Cheers
LOL, I didn't deliberately check your maths but, after 30 years as a maths lecturer, it just kinda happened in a very casual, non-judgemental, way. However, you'll be happy to hear you scored 100% and go straight to the top of the class.
I used to have a cabinet with glass doors on the home office and I put blank copy paper on the back to make a bunch of mini whiteboards. it works pretty good but it has a shadow effect on the writing as you can kind of make out on your demo.
Loved the board and the math lesson. I've found the pythagorean theorem comes in handy for any trade, as well as establishing a right angle in the middle of know where, LOL.
That sounds like a great idea, assuming that they are glass. Post a pic if you can find one. I'm also curious what they would cost. Actual glass wall-mounted dry erase boards are excessively priced.
I only have one suggestion: use a push stick for your table saw! Otherwise, great video. I like the tricks (e.g. prefeeding the planer to avoid snipe) and homemade jigs you used, and I like the tutorial on Pythagorean Theorem.
I think you are amazing...wish that there were more people who have your talent and impeccability!! Great Job and the math was cool...:) I love you tools...!!
This is brilliant! I know it'd add weight, but if you wanted to make this board magnetic, I assume you could put a sheet of metal behind the glass. The alternative is to paint the back of the glass with magnetic paint (paint impregnated with iron bits). If you could do this all over again, would you change anything?
I didn't know it was a problem. If this video made it seem that way, it was because I had can lights aimed at it from various (possibly steep) angles. In real life, its appearance is very nice. As a technical point, filming white (for me) is the most difficult; white backgrounds often appear dark as a response to the lighting, and editing tricks only seem to promote graininess. But to your question: I think backlighting could be great for this sort of thing, but by no means easy to implement. Some sort of diffuser would be advisable, because individual "spots" from each LED would be terribly distracting and revealing. Thus, it would require a thicker panel, building it out from the wall. I think, in my ideal shop, I would have one embedded in the wall, backlit with CFLS and a employing a translucent diffuser screen. That would be awesome.
Still getting my head around the tessaract bit!!! But I get the +dimension = another square or cube. Forget all that... good on you for making something with your own hands as a thank you for someone who has helped you out. I'm sure that means something to them every single day they look at/use the board rather than a store bought product. Cheers.
Nice catch. In fact, a tesseract is a 4 dimensional "cube," and the longest dimension that it would contain is 2...and the square root of 4= 2. I wasn't really sure about taking this video into that dimension of weirdness, though. en.wikipedia.org/wiki/Tesseract
aa We would have to build a geometric proof. I would argue it something like this: point C, opposite side c (hypotenuse), has two 90° cube edges attached to it and side a (1). Any line segment that exists on the same plane as these two other perpendicular edges and passes through point C, will by necessity, also be right angles.
pocket83 Yes, this goes in the right direction. I would reason in terms of vectors and dot products: the dot product between any two of the three edges of the cube incident in C (say, a, d, e) is zero. Edge b is the vector sum of d and e, and therefore b*a = (d+e)*a = d*a+e*a = 0. Hence b and a are orthogonal.
aa Wait, you're the one who thinks that toy guns are the product of American stupidity, right? I'm not ignoring you, I'm just pausing to consider if I should ban you from this channel or not. I think your next comment should help me to decide.
I HATE that I'm going to leave a safety comment, but... lifting a rip cut out of the captive are of a table saw while it's at full speed? At 3:13, I could literally hear the saw saying "I want to take this piece of wood and throw it back at you at 100 MPH."
Just came across your vid, it's awesome! So thorough and a really nice finished product. What kind of paint did you use? Just basic spray paint? I know there are glass paints out there, but I can't seem to find anything in a decent size (most of the stores just have crafting sized 8oz bottles). I'd like to make one like the colored glass boards here: www.monomachines.com/shop/presentation-tools/glass-dry-erase-boards.html. LOVE the bright colors, something different than the norm whiteboard. Contact paper is a brilliant idea, as my main concern has been the paint "sticking" and peeling or scratching off. Have you found that your painted boards have lasted over the couple of years since you made this video? Thanks!
I used regular old spray paint, which was most likely the one dollar per can kind. It is mounted to the wall, so there is little chance of it being scratched or scraped. As for how it lasted, it was just fine last I saw it, although quite dirty from dry erase marker dust (it was for a mathematics professor, so you can imagine how much use it sees). It may also be possible to alter the back surface, to make it translucent rather than white. Sandblasting it would be one possibility, or perhaps one of those wipe-on etching compounds (hydrofluoric acid, if I remember correctly) would be an even more permanent solution. To be honest, it takes very little to shift the attention of the eyes to the front of the board; the boards that I use around the house are simply glass backed with poster board that was affixed with spray-adhesive. Even something this simple is superior to the typical whiteboard material. Hope I helped you some. Good luck.
pocket83 Thanks for getting back to me so quickly. Wow!!! That is great news ($1 spray can paint!). I found a frosted glass paint that might look nice and it was only about $5 at Lowe's. I'm very excited to try this for my daughter's room. Thanks again!
+pocket83 How about window frosting? You can get a can from your local big hardware store. I'm currently making an LED Vanity. I stripped the mirror finish around area I wanted to keep and sprayed some window frost in that area to make the glass a bit opaque so that the LED lights can still shine through.
I've been thinking of doing something like this. I had been planning on sandblasting the back side of the glass to frost it. The paint looks pretty good too. Have you ever tried it that way? I'm curious about how it would compare as far as contrast with the markers. Also, thanks for the video. Really enjoyed it!
Yes, I have played with the sandblasted glass idea, and I think it works great. From what I remember, I think that method actually produces the nicest looking result, but it's also a pain to actually do it. I don't have a cabinet, so I have to blast out in the yard. Try it out on a small sample piece, and you'll likely be convinced. Just remember to evaluate your samples with a dark trim around their perimeters, because light getting in or under will change the overall appearance. Good luck.
As I can see, the thicker the glass the more visible is the reflection, so I would go with thinner but with maybe really good support behind. Or is there another easier way to decrease the reflection?
Good job on your geometry. I'm only 15 and I understood all of this. Only thing you did incorrectly was use a capital letter for the length of a side, everything else shapes up. Ha Ha "shapes up" Geometry pun.
Why do you have to flip the piece over when you use the table saw to cut it? Why not push it all the way through with a push stick? Is it just because you don't want it to fall down or something else? Please answer, I love your videos and I rewatch them over and over.
so we have to buy all that equipment to build a glass erase board... isn't cheaper to just buy the board?.. unless you already have the necessary equipment to cut the wood and junk
+DADE COUNTY JOSE Depends entirely on you. Buying tools and equipment is an investment. If you make little use of your tools/equipment it's a bad investment. If you make frequent use of your tools/equipment it's a good investment.
You could buy pre-made picture frame molding instead of making it yourself. Most people watching this probably have the tools necessary though. A table saw is a lot of fun to own.
Fulla Beaverhausen Why not? Was it too difficult for you to understand? Variables are arbitrary, especially when no interior angles are present in the problem. I could use letters from the Greek alphabet (or a star, a heart, and a diamond) to express the exact same idea, so get over it. The specifics of mathematical convention may have their place, but that place is not on a video like this one. If you are talking a test, _then_ you should remember to apply that rule.
+pocket83 completely correct. That said, in trigonometry, it's common convention to use uppercase for angles, and lowercase for sides. Especially for use of the sine and cosine rules, it's important to keep to these conventions. Good habits are always good habits.
sorry to disagree with you but in the field any letter uppercase or lowercase can mean anything, and it's better to learn the way the functions behave, not the letters, or you'll get confused. If you're used to A always being an angle, if it's not, you're stumped. But if you're used to what's inside a sin() function always being an angle, that's much better. (Source: am Dr of Physics)
Stone texture really set the whole project off. Good work.
Thanks. This one was a gift for a mathematics professor. The boards that I actually use at home are just white poster-board glued to the back of the glass with spray adhesive.
Thanks for letting me know that it was useful, and thanks for watching!
I'm glad that you found it tasteful. It matched my sweater perfectly.
Glad you liked. Thanks!
not only i admire your craftsmanship, i admire your interesting personality and the smart tips that you put on your videos.
i loved the math part as well
if i was not an atheist, i would say may the gods be with you!!!
i thought this was only about the board. i only watched it because it was the only one of your videos i had left. so glad i watched it! this is exactly the kind and amount of math i like. learned something i'll use in the shop!
The board frame looked pretty cool before the stone texture. Then it transformed into the greatest dry erase board I've ever seen
Thank you. I agree- it makes it look less like a sterile piece of office furniture. I hope you liked the math bit; MrChris had once mentioned how you love that stuff. I trust that you will check my math, so I don't end up looking bad.
That being said, thank you for the tutorial on the glass DEB. I'll be making one of these very soon. The cheap DEB material from the big box stores is absolute crap.
lol thanks, but don't forget that this vid is edited; in real life this stuff is really hard to explain without stopping to scratch your head. Check out Lindelof, he is really good at explaining hard concepts. But as far as useful carpentry math goes, I promise to show you more in future vids. Thanks.
Very nice dry erase board. I really liked your video and the math you demonstrated.
Bonus! Came to see a dry erase board get made and got a math lesson too! Very nice; very practical.
By far you are good at what you do. Very enjoyable video and educational at the same time. Thank You, FR
Super! I love the stone effect, it gives the board a really unique, and tasteful, look.
Basically nothing. I used a single 2x4 and a can of spray lacquer, which combined would retail around $7. The remainder was stuff I had around the garage. If you can find a piece of tempered glass, the rest is easy.
Very nice. The Stone Texture was a nice touch....
Wow I would love to be able to make a dry erase board like that. Fantastic job.
Really a nice piece of work you pulled together.
pocket83, I fell on your video while looking at DIY projects for whiteboards and bulleting boards. I find it nicely made, especially how you wrap things up at the end with the math. Keep up the great work.
Thanks! I get such nice comments on my videos, with the exception of that stupid pinball video. I really appreciate you reminding me that there still is hope.
I hope so. Thanks.
That was so cool of you! Thanks loads. I must admit I was busy taking notes and doing your math with you. I'm going to send this video out again!!! Cheers
LOL, I didn't deliberately check your maths but, after 30 years as a maths lecturer, it just kinda happened in a very casual, non-judgemental, way. However, you'll be happy to hear you scored 100% and go straight to the top of the class.
Beautiful job!
I think that maybe painting the glass was not really necessary, because a piece of white posterboard would have done the same job. Thanks.
Great Job! You are very creative!!
I used to have a cabinet with glass doors on the home office and I put blank copy paper on the back to make a bunch of mini whiteboards. it works pretty good but it has a shadow effect on the writing as you can kind of make out on your demo.
Loved the board and the math lesson. I've found the pythagorean theorem comes in handy for any trade, as well as establishing a right angle in the middle of know where, LOL.
Your math teacher is going to love this!! Nice work!!
Glass is far superior. This piece was an old coffee table, so I would suggest a thrift store.
Amazing job.
Very cool!
once I saw the math stuff it made me happy, especially the square root stuff because I had no idea about it and I loved it
We used the 3'x2 foot frameless poster frames from Ikea in our office … we all had 4 of them. They were fantastic.
That sounds like a great idea, assuming that they are glass. Post a pic if you can find one. I'm also curious what they would cost. Actual glass wall-mounted dry erase boards are excessively priced.
I think it was this one … www.ikea.com/us/en/catalog/products/30151016/
I only have one suggestion: use a push stick for your table saw! Otherwise, great video. I like the tricks (e.g. prefeeding the planer to avoid snipe) and homemade jigs you used, and I like the tutorial on Pythagorean Theorem.
And I suggest that you refrain from advising me on how to make my own calculated risks.
pretty cool idea
Awesome!!
Already answered a few comments down.
Geometry teachers of the world salute you!
your a thinker , and i like thinkers ! good stuff man
@pocket83
Wish I was good with wood work.. Great Vid.
Oof the math at the end was hands down the sexiest part ... enjoyed indeed
I think you are amazing...wish that there were more people who have your talent and impeccability!!
Great Job and the math was cool...:)
I love you tools...!!
Wouldnt the pencil stroke generate shadows on the backpainting if an angled light is present? You can notice that when the "test" starts
Like your nail polish.
Thank you.
I fell asleep during the marble shorting machine video and woke up to this
Thank you. I hope you watched the last ten seconds ;)
Fantastic
This is brilliant!
I know it'd add weight, but if you wanted to make this board magnetic, I assume you could put a sheet of metal behind the glass. The alternative is to paint the back of the glass with magnetic paint (paint impregnated with iron bits).
If you could do this all over again, would you change anything?
I just had a thought. Since marker board is made of glass you could backlight it for a special effect.
Would adding some sort of LED backlighting help eliminate the problem of shadows from the marker?
I didn't know it was a problem. If this video made it seem that way, it was because I had can lights aimed at it from various (possibly steep) angles. In real life, its appearance is very nice. As a technical point, filming white (for me) is the most difficult; white backgrounds often appear dark as a response to the lighting, and editing tricks only seem to promote graininess.
But to your question: I think backlighting could be great for this sort of thing, but by no means easy to implement. Some sort of diffuser would be advisable, because individual "spots" from each LED would be terribly distracting and revealing. Thus, it would require a thicker panel, building it out from the wall. I think, in my ideal shop, I would have one embedded in the wall, backlit with CFLS and a employing a translucent diffuser screen. That would be awesome.
Still getting my head around the tessaract bit!!! But I get the +dimension = another square or cube. Forget all that... good on you for making something with your own hands as a thank you for someone who has helped you out. I'm sure that means something to them every single day they look at/use the board rather than a store bought product. Cheers.
Love the math. It is cool how the measurements square root is in correlation to the number of dimensions.
Nice catch. In fact, a tesseract is a 4 dimensional "cube," and the longest dimension that it would contain is 2...and the square root of 4= 2.
I wasn't really sure about taking this video into that dimension of weirdness, though. en.wikipedia.org/wiki/Tesseract
pocket83 You never said why the triangle with sides 1 and sqrt(2) is a right triangle.
aa We would have to build a geometric proof. I would argue it something like this: point C, opposite side c (hypotenuse), has two 90° cube edges attached to it and side a (1). Any line segment that exists on the same plane as these two other perpendicular edges and passes through point C, will by necessity, also be right angles.
pocket83 Yes, this goes in the right direction.
I would reason in terms of vectors and dot products: the dot product between any two of the three edges of the cube incident in C (say, a, d, e) is zero. Edge b is the vector sum of d and e, and therefore b*a = (d+e)*a = d*a+e*a = 0. Hence b and a are orthogonal.
aa Wait, you're the one who thinks that toy guns are the product of American stupidity, right? I'm not ignoring you, I'm just pausing to consider if I should ban you from this channel or not. I think your next comment should help me to decide.
u rocknow..
So which came first? The Pocket83 hole jig or the pocket hole jig from Kreg?
Your videos make my day. Thanks for your time and work.
What kind of pens are those that they use?
You have a naturally sarcastic tone in your voice. I bet you've rubbed up senstive people thw wrong way without even trying.
Is the distance between 2 outer points on a hypercube sqrt(4)? :^)
Yes.
Did the paint go through the paper?
Justin Merrick the paper was on the other side XD
I HATE that I'm going to leave a safety comment, but... lifting a rip cut out of the captive are of a table saw while it's at full speed? At 3:13, I could literally hear the saw saying "I want to take this piece of wood and throw it back at you at 100 MPH."
Love the finish you applied.
Mhmm, glass... is backlight possible?
Was that Golden Axe I heard?
Lindelof... Swedish ancestry perhaps? (Then Lindelöf or Lindlöf)
Excellent work!
Cheers from Sweden/Tom
Just came across your vid, it's awesome! So thorough and a really nice finished product. What kind of paint did you use? Just basic spray paint? I know there are glass paints out there, but I can't seem to find anything in a decent size (most of the stores just have crafting sized 8oz bottles). I'd like to make one like the colored glass boards here: www.monomachines.com/shop/presentation-tools/glass-dry-erase-boards.html. LOVE the bright colors, something different than the norm whiteboard. Contact paper is a brilliant idea, as my main concern has been the paint "sticking" and peeling or scratching off. Have you found that your painted boards have lasted over the couple of years since you made this video? Thanks!
I used regular old spray paint, which was most likely the one dollar per can kind. It is mounted to the wall, so there is little chance of it being scratched or scraped. As for how it lasted, it was just fine last I saw it, although quite dirty from dry erase marker dust (it was for a mathematics professor, so you can imagine how much use it sees).
It may also be possible to alter the back surface, to make it translucent rather than white. Sandblasting it would be one possibility, or perhaps one of those wipe-on etching compounds (hydrofluoric acid, if I remember correctly) would be an even more permanent solution.
To be honest, it takes very little to shift the attention of the eyes to the front of the board; the boards that I use around the house are simply glass backed with poster board that was affixed with spray-adhesive. Even something this simple is superior to the typical whiteboard material. Hope I helped you some. Good luck.
pocket83
Thanks for getting back to me so quickly. Wow!!! That is great news ($1 spray can paint!). I found a frosted glass paint that might look nice and it was only about $5 at Lowe's. I'm very excited to try this for my daughter's room. Thanks again!
+pocket83 How about window frosting? You can get a can from your local big hardware store. I'm currently making an LED Vanity. I stripped the mirror finish around area I wanted to keep and sprayed some window frost in that area to make the glass a bit opaque so that the LED lights can still shine through.
With the cube you could have just done A^2+B^2+C^2=D^2, that is (at least where I come from) what we call the elongated Pythagorean theorem...
I wonder how it'd looks with a strip of LED on the back :)
Flying Bunny. You would see the shadow of the backer reinforcement strips.
See "Carl Munck - The Code" - if you like numbers.
Can you be my new math teacher?
I've been thinking of doing something like this. I had been planning on sandblasting the back side of the glass to frost it. The paint looks pretty good too. Have you ever tried it that way? I'm curious about how it would compare as far as contrast with the markers. Also, thanks for the video. Really enjoyed it!
Yes, I have played with the sandblasted glass idea, and I think it works great. From what I remember, I think that method actually produces the nicest looking result, but it's also a pain to actually do it. I don't have a cabinet, so I have to blast out in the yard. Try it out on a small sample piece, and you'll likely be convinced. Just remember to evaluate your samples with a dark trim around their perimeters, because light getting in or under will change the overall appearance. Good luck.
pocket83
did you invent the pocket hole jig ?! lol
As I can see, the thicker the glass the more visible is the reflection, so I would go with thinner but with maybe really good support behind. Or is there another easier way to decrease the reflection?
Good job on your geometry. I'm only 15 and I understood all of this. Only thing you did incorrectly was use a capital letter for the length of a side, everything else shapes up. Ha Ha "shapes up" Geometry pun.
what is the thickness of the glass you used?
Why do you have to flip the piece over when you use the table saw to cut it? Why not push it all the way through with a push stick? Is it just because you don't want it to fall down or something else? Please answer, I love your videos and I rewatch them over and over.
Lol, end music is end credits for which nintendo game? It's on the tip of my tongue.
Just remembered, sega actually, golden axe. Nice.
Satukora, Sassa!
so we have to buy all that equipment to build a glass erase board... isn't cheaper to just buy the board?.. unless you already have the necessary equipment to cut the wood and junk
+DADE COUNTY JOSE
Depends entirely on you. Buying tools and equipment is an investment. If you make little use of your tools/equipment it's a bad investment. If you make frequent use of your tools/equipment it's a good investment.
Very true
You could buy pre-made picture frame molding instead of making it yourself. Most people watching this probably have the tools necessary though. A table saw is a lot of fun to own.
Why did you paint your nails red
Don't use upper case letters for the length of a side og a triangle.
Fulla Beaverhausen Why not? Was it too difficult for you to understand? Variables are arbitrary, especially when no interior angles are present in the problem. I could use letters from the Greek alphabet (or a star, a heart, and a diamond) to express the exact same idea, so get over it. The specifics of mathematical convention may have their place, but that place is not on a video like this one. If you are talking a test, _then_ you should remember to apply that rule.
+pocket83 completely correct. That said, in trigonometry, it's common convention to use uppercase for angles, and lowercase for sides. Especially for use of the sine and cosine rules, it's important to keep to these conventions. Good habits are always good habits.
sorry to disagree with you but in the field any letter uppercase or lowercase can mean anything, and it's better to learn the way the functions behave, not the letters, or you'll get confused. If you're used to A always being an angle, if it's not, you're stumped. But if you're used to what's inside a sin() function always being an angle, that's much better. (Source: am Dr of Physics)