teachnlearn

https://www.mathopenref.com/ellipse.html Look at the first ellipse picture on the site. The point on the ellipse moves with the mouse. Notice the line a is from one point in the middle line. Just think of one brad nail being point a, the line a is going to be the string from that brad nail to the outside of the circle. The line b is the string from the other brad nail, point b. When you move the outer string point, less say a to the line that goes through the two brad nails, you get the outer point. That going to be the outer end of the ellipse left of brad a. Move the string point to the line that goes through the brads, say b and go to the right side you get the end of the ellipse from brad nail b. Move the point around the ellipse and remember, point a is a brad nail, point b is a brad nail. The line a is the length the string will reach to the ellipse from nail a. The line b is the string that will reach the ellipse from nail b. Play with the picture, that grab some cardboard, two brad nails and different loops of string, As you move the brad nails closer and further from each other your going to see the ellipse flatten and expand. The string loop will always be the same until you make a different size. A whole group of string loops and you can make an ellipse on the living room floor with the right length. RJF

Stand by a public washroom with no toilet paper and charge $4.00 for four pieces. You will get more then $20 for a full roll and they can pull off a really neat holder. RJF

I have COPD, poisoned with heavy metals and the nerves for one lung shut down from military service. Its not only the dust you can see, Its the stuff that is microns and the more your around it, the more your going to breath and concentrate it. You can find 3M masks that have ear loops and bands around the head. After losing a lung 'doesn't function' I've used all types all the time. Some of the mask with the ear loops can start rubbing your ears raw. I would definitely recommend a mask with a 'ventilator'. Little plastic piece on the front, will open every time you breath out. This is going to keep you from getting hot ans sweaty in the mask. Ventilate the shop, use vac suction around machines. Solvents will mess with your lungs. Saw dust particles are tricky buggers. One day your absolutely fine. The next your allergic and gasping for breath. If your in the shop day after day, invest in a mask with replaceable filters for the type conditions your working. I lost my lung through breathing stuff in the military and didn't know it. Wood shops have known irritants and poisonous solvents. At least use vacs, blowers, fans and save your lungs. Its no fun walking up a set of stairs and doubling over for air, as if you have run a mile. RJF

If it makes you feel better, I will send you two brad nails and a loop of string for 20 dollars. I've got an engineering degree and apply KISS in my designs and projects. RJF

Anyone bumps into this, create a small background board in whatever shape to glue the lettering too, then glue/pin the board to the plaque. Larger surface should be plenty of area to glue to a curve. RJF

Can't go, too far. Can someone walk around with a camera and post the video? RJF

I'm planning on living in a bounce house that will survive snow and earthquakes. Maybe add a ball pit for the earthquakes. RJF

But ashes and water makes lye. Lye and fat with hot water makes soap. Soap will clean up the mess. RJF

Yep hes got a whole bunch of maple to cut to get to anything underneath. Just keep safe and use the safety equipment if your going to chainsaw it yourself. RJF

Before the internet I scrolled from books and magazines. The easiest and simplest patterns I found were kids coloring books. A lot of them are themed. Especially for kids gifts you can scroll the pattern and give the coloring book. Daves pattern may already be perfect. Quick check got this. RJF https://smile.amazon.com/s?k=monster+truck+coloring+book&ref=nb_sb_noss_1

Thank goodness you weren't under it. It sucks, but you survived to rebuild, better faster, larger, able to leap tall buildings RJF.

It does work to hide behind your bench and put wood pieces on the clamped sander to shoot at your enemies. For 4 x 8 sheets, I'll check for a portable 4 x 8 sander to clamp down. RJF

A tip that comes around yearly is clamp the sanders and bring the work pieces to the sander. With small parts, or a heavy sander or vibration, your control is going to improve, less weight on the arms and wrists and no vibraton to recover from. RJF

I've seen compound projects that require a clamp after the first side is cut to keep the cut piece in place. Check to see if you need that. RJF

Seems to be a starting trend here of tilting the table a little. Wonder how long its going to take the mgrs. to take this idea and add it to their machines? Someone want to send this thread to the mgrs? RJF

I had a vac exactly like this mgr under different name. The collection is small and the filter will jamb with saw dust fast. RJF

Actually I find it easier to tilt my head. It seems to be a natural and quick move. I can even change the angle of the work by moving my head while still cutting. RJF

Aren't dogs a bit heavy to hang on Xmas Trees? RJF

I've done a bit of professional sharpening. I found many times it was easier and more accurate to have a wood piece, jig to tilt the work. Kept the angle without tilting the machine. Could even go half degrees with accuracy. Seems faster and easier than tilting the machines. RJF

Be careful on chucking those up long out of the chuck. They are so thin, its easy to break. RJF

Yes its that price, but its the size that is on the page. They ship it in a little envelope for $5.99 RJF

Read an article years ago about clock motors, hard drives, old filament lights. Went along the line that the initial start torque lead to early failure. Turning computers on and off every day was harder on the hard drive again from the initial torque. Lights had a initial surge. Seen some forums go round on it. Its a life test of a vac that runs all the time against a vac turning on and off? RJF

For quick charts I got this pocket book years ago and its full of charts and material infor. I pick it up all the time. RJF https://smile.amazon.com/Handyman-Your-Pocket-Richard-Allen-Young/dp/1885071299/ref=sr_1_1?ascsubtag=1ba00-01000-org00-win10-dsk00-smile-us000-gatwy-feature-SEARC&keywords=handymans+reference+book&qid=1569184609&sr=8-1 By the way, Mythbusters had questions constantly on where they got their information for their project. Adam wrote and said they used this. RJF Check out the whole set of pocket ref books on the link. RJF

The calculator kept multiplying the decimal by 10 and moving it to a whole number and added the denominator. I asked for a fraction from it, so it gave me that. RJF