Cutting slots in plywood
How do you all cut slots that are prefectly straight and level? I have to cut one that is 1/8" wide and 2 1/2" long in a small sheet of 1/8" plywood. Thanks.
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RE: Cutting slots in plywood
dremel
tabel saw drill bits jigsaw |
RE: Cutting slots in plywood
Dremel can drift and the slot needs to be PERFECT.
Table saw I thought about but one side will be cut longer than the other; although the slot will be perfectly straight and level. Jigsaw just seems too be too hard to hold straight. I did think about using a table router but I'm not sure that I can get a bit that small. |
RE: Cutting slots in plywood
Use whatever method you're most comfortable with to cut the slot slightly undersize. Finish it to size with an emery board.
Dr.1 |
RE: Cutting slots in plywood
Use the tablesaw to take it as closs as you can, then finish it off with a razor saw. The straight cut from the tablesaw will guide the razor saw the rest of the way.
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RE: Cutting slots in plywood
Razor saw?? OK... Thanks.
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RE: Cutting slots in plywood
Any cutting (saw, knife, or otherwise) will not yield the exactness you seem to need. Using sandpaper or an emery board will allow you to take off .001s of an inch with each stroke. VERY precise.
Dr.1 |
RE: Cutting slots in plywood
Guess you could use a hack saw if you don't have a razon saw. You just want something manual with fine teeth.
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RE: Cutting slots in plywood
I've got a razor saw... What is an emery board?
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RE: Cutting slots in plywood
Check with the women in your life. One of them will likely have some. They are used to manicures nails.
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RE: Cutting slots in plywood
like a nail file but quicker and made out of paper--kinda like real fine sandpaper
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RE: Cutting slots in plywood
How do you all cut slots that are prefectly straight and level? I have to cut one that is 1/8" wide and 2 1/2" long in a small sheet of 1/8" plywood. Bill |
RE: Cutting slots in plywood
I would use a router table with a fence I think you can get high speed steel bits from sears or use an 1/8 inch end mill. Randy
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RE: Cutting slots in plywood
I am thinking about getting a RotoZip tool and making a table for it or adapting a router table. This might be better for the purpose than a router.
http://www.rotozip.com/attachmentsde...intAttachID=15 |
RE: Cutting slots in plywood
Can you cut the slot first - say in a piece of oversize plywood on a rise-and-fall bench saw, and then cut the outer shape afterwards?
Alan W |
RE: Cutting slots in plywood
RotoZip bits are available for Dremel tools. When hand cutting they tend to wander. A tile-cutting bit appears to wander less. The tile-cutting bit is more like a burr. Smallest bit that I have seen is 1/8. Cutting on both sides at once will make a real mess.
Bill |
RE: Cutting slots in plywood
ORIGINAL: AlabamaRaptor I did think about using a table router but I'm not sure that I can get a bit that small. |
RE: Cutting slots in plywood
I have cut slots in both wood working projects and airplane parts by drawing the slot outline on part, drilling a hole smaller than width of slot in each end, keeping the bit inside the line- cut out inside the line with a scroll saw using a wide blade and finish with a small flat file for edges and round file for the rounded ends. Works for me-nice straight slots-just take your time. ( I get in trouble borrowing emery boards)
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RE: Cutting slots in plywood
( I get in trouble borrowing emery boards) Bill |
RE: Cutting slots in plywood
Thanks for the replies.
The slot will be on the Retract Slide Board of the Dan Palmer C-130. The main gear is mounted to it and an arm lifts and lowers the slide board through this slot. With that said you can see why it needs to be smooth, straight and level. Spectators love a gear up landing but they are never loved by the pilot! I do have a router table available... my neighbor has a mega workshop. |
RE: Cutting slots in plywood
ORIGINAL: BillS ( I get in trouble borrowing emery boards) |
RE: Cutting slots in plywood
ORIGINAL: AlabamaRaptor I do have a router table available... my neighbor has a mega workshop. |
RE: Cutting slots in plywood
Forget cold ones... after cutting this I'll need a shot of something.
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RE: Cutting slots in plywood
Liteply up to one eighth inch and birch ply up to one sixteenth can be cut most accurately using a Stanley knife ( with a new blade ) and a straight edge. Make repeated light cuts along the same groove. If necessary turn over to the reverse side and complete the cut.
On one eighth or more birch ply make the groove with a knife and then cut with a saw such as a japanese saw ( pull saw ) or razor saw. ( japanese saws do not have a thick ' back ' like razor saws, dovetail saws etc, they cut on the pull stroke and therefore can be made very thin -excellent tool. ) Make sure the slot you cut is the same size as the part to go in it - if it is another piece of ply measure the actual ply because ' one eighth ' ply is sometimes only 3 millimetres. |
RE: Cutting slots in plywood
I got it cut...
I used my neigbors scroll saw and it looks awesome. Thanks. |
RE: Cutting slots in plywood
after reading all the above methods and your parts still need to be exact, I suggest that you take your matl to a local machine shop and they will finish it exactly to your satisfaction useing an end mill. good luck on your project. dick
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RE: Cutting slots in plywood
ORIGINAL: dicknadine after reading all the above methods and your parts still need to be exact, I suggest that you take your matl to a local machine shop and they will finish it exactly to your satisfaction useing an end mill. good luck on your project. dick |
RE: Cutting slots in plywood
For speed and accuracy, a well sharpened chisel will do a fine job. But it has to be mirror sharp.
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