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General Category => General Scroll Saw Talk => Topic started by: geneVG on July 14, 2011, 04:18:20 pm
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I need some information on lubercating blades. I have been working with some Oak & Red Oak, and the blades get really hot. How do I lub the blade while makeing saw dust with hard lumber?
genevg
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The clear packaging tape is supposed to help that.
I suspect you may be putting side pressure on the blade, that will heat it up pretty quick.
I've been known to do that so I know from whence I speak. If you have a foot switch stop the blade and then watch how the wood moves when you let go. To the side would indicate side pressure! It's pretty easy to do, so I check myself regularly, and try to relax with the hold down hand, it's usually the culprit.
Good luck and I hope this helps,
Gabby
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Like Gabby is saying. Use the 2" clear package tape over the pattern. The tape has a chemical, so you can un-roll the tape, it is like a silicon. This releases friction. If you want to lub the blade, it does not last long, the heat will remove it real fast. Some people use the blue painters tape on the wood and glue the pattern on top of that. The tape works great on any hard wood. I like the package tape, if the if the pattern would come loose, it is easy to hold it down, till the pattern holds again. To make sure you don't get saw dust between the pattern and tape, make sure you go over the tape with your thumb.
If you do not use enough speed you might have a tendency pushing too hard into the blade and the blade will start cutting with a bevel. That is why I like good speed.
FD Mike
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Use the 2" clear package tape
over under the pattern.
You can simple rip the pattern off if the tape is between wood & pattern.
On thicker wood I tape both sides.
I also recommend to use a lower feed rate - don't push the wood through the blade, let the saw cut the wood.
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Gene, All of the above is good advise. I like to use the packing tape on top of the pattern, but it will work either way. If you are still burning, Go up one blade size.
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Thank you all for the help. I will give it a try in the morning.
genevg
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I find oak to be one of the hardest things to cut. I end up using a size larger blade then I would if I was cutting most any other material. The packing tape does help alot.
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Katie I've started a trivet out of the same Oak used in the enough friends project.
I have been following the advice of wiser heads and wraping it with blue tape first, then spray adhesive on one side then stick the pattern on, then wrap again with clear packing tape I hardly get a burn this way. I have no problem with FD-1 or larger I only have up to FD-5.
With this thick 3/4" I have to be patient and not force it otherwise no problems.
Gabby
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Gabby, That's overkill on the tape. Save yourself some money and go with one or the other. It is not necessary to use both. I don't like the glare on the clear tape so I either put it on the bottom or use the blue tape under the pattern.
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That's a good tip julief! I never thought about putting the tape on the bottom. I use it on top but don't like how sometimes it traps sawdust on top of the pattern.
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For me I like the clear packing tape on top of the pattern. I struggle to much trying to remove tape from the completed cutting. So I put the tape on top of the pattern. I don't have a problem with glare as I use a lighted magnifier lamp. It uses a florescent bulb, so no glare. I use a heat gun to remove the pattern, and the tape comes off with the pattern. If it gets stubborn, I spritz it with mineral spirits and it come right off!
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I put the clear tape on top of the pattern - but have had difficulty with sawdust getting under the tape and obscuring the pattern - expecially in areas where the space between pattern lines is small. the pattern (and tape) tend to lift off the wood and makes it difficult to see and follow the original pattern. Not sure if i failed to de-dust the wood before applying the pattern or not enough spray adhesive....
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The way I described works very well, no lifting of the pattern or the other problems. What I did find difficult was removing the clear packing tape that was directly on the wood. Hard as h--l to get it off and left adhesive to clean off too, the areas with the blue tape peeled right off no problem. No heat gun and the Boss would frown on my using her hair dryer. :o :o
What ever works best for you!
Gabby
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No heat gun and the Boss would frown on my using her hair dryer. :o :o
What ever works best for you!
Gabby
Well DOH!!!!! Go buy her a newer, better hair dryer and ask for a trade in on the old one. Then we have TWO happy people and you might even get your favorite supper and a big smooch to boot!
Rog
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Roger, my husband actually did that. lol
I came home from work one day and noticed a new hair dryer in the bathroom. My old one had a "convient" foldable handle that had been broke for a while, but I hadn't mentioned it to anyone since I am the only one who uses it. When I asked my husband why there was a new hair dryer he said "well I needed a heat gun, so I used your hair dryer. But then I dropped it and the handle broke so I got you a new one". I did eventually tell him that he didn't break it.
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Katie, your just to sweet! ;D ;D
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Katie,
I would like to tell you that is about the way I got my heat gun/hair dryer but the truth be known.......
My wife's hair dryer went on the fritz and wouldn't work so she went and bought another one. When I found the old one in the trash (being cheap) dug it out and took it apart and found a loose wire that was causing the problem. ;)
I was using it in the shop one day when she came in and ask where I had gotten it. When I told her what I had done of course she wanted to know why I hadden't fixed it for her!!!!!! :'(
You didn't ask. ;D ::)
Rog
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No heat gun and the Boss would frown on my using her hair dryer. :o :o
What ever works best for you!
Gabby
Well DOH!!!!! Go buy her a newer, better hair dryer and ask for a trade in on the old one. Then we have TWO happy people and you might even get your favorite supper and a big smooch to boot!
Rog
Rog I'm sorry to say that won't work here. I'll just have to find one in a thrift store for pocket change, whenever I have any that is.
G
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I sure do thank you all for the advice. I tryed putting the tape on the bottom. When I went to take it off, I had to use a putty knife. Will a heat gun help take the tape off and the patteren on the front?
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Gene, A heat gun will work, or if you don't have one a hair dryer will work. This is why I put the tape on top of the pattern. After you are done cutting, The tape comes off easaly with the pattern.
If you still have trouble getting the tape off, use some mineral spirits to loosen it. Following advice from our member Dunk, I have a spray bottle filled with mineral spirits to spritz when needed.
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Can you spray the mineral spirits on top of the pattern or if you put tape over the pattern you just spay it over that and no putty knife is needed?
gene
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Oh Yeah, A big thanks to Dunk for the spray bottle hint. Yes Gene, just spritz the tape with a little mineral spriits and it will lift off, adhesive and all.
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Thank you.
gene
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why doesn't the tape come of? sounds strange to me, normally you should be able to just pull it off.
Photo possible?
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I will get a photo of the picture as soon as possible.
gene
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I find that sometimes when I have tape on the back the fuzzies from the cut make it hard to peel the tape off. Instead of one nice sheet like the front usually give you get little bits and pieces. I use a knife blade or razor to help lift the tape to get it to peel better
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I used a putty knife to take the tap off, as long as the pty knife is sharp ,
gene
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Blue tape top and bottom, no need for putty knives, or spray bottles or heat guns. Tape is cheap.
Gabby
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Hey Gabby, it works. THANKS
gene
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Hey Gabby, it works. THANKS
gene
Would Old Gabby stear you wrong?
Just peeled the junk from the trivet today took a few minutes (maybe5) the only tool I used was a box cutter to start lifting it, from then on it was a breeze.
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Almost all of my work is done using red oak. I put the packing tape on top of my pattern. I also use the #5 FD reverse blade - even for tiny areas. I use the spray adhesive very very lightly. Yes sometimes the pattern lifts up but I use a piece of scotch tape to hold it down til I am through with the project. Then if the pattern sticks I use a heat gun or blow dryer. Usually the pattern comes off very easy. Hope this helps.