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| Forum topic by Tino | posted 391 days ago | 806 views | 0 times favorited | 9 replies | ![]() |
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391 days ago |
Topic tags/keywords: miter saw precision plywood Hi Everybody, I have a hopefully simple problem that I’m hoping a more experienced woodworker can help me with. I have a sliding compound miter saw that I’m cutting plywood strips from to support a cell phone/personal speaker holder. Problem is only some of the cuts are true 90 degree cuts. About half of them are 89 or 88 degrees, so they don’t pass the speed square test. I know that I can take a sander to this, but am wondering why this happens and how to avoid it next time. My blade did come loose from the arbor (??) after a series of cuts this weekend. Possible ideas: Can somebody shed some light on this? Thanks! |
9 replies so far
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#1 posted 391 days ago |
Are you speaking of the “Glide” or the “Slide” miter saw. There are some negative reviews on the new Glide miter saw. -- Michael :-{| Diapers and politicians both need to be changed often; and for the same reason. |
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#2 posted 391 days ago |
I can’t say for sure, but here are a few things I’ve learned with my DeWalt. -- Failure does not stop me, it makes me try harder..... because I'm crazy. |
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#3 posted 391 days ago |
As Russell has stated, using a speed square, ensure your blade is a perfect 90 degree at both fences on left and right side, ensure blade is 90 degree to the table top on left and right side of blade, using a straight edge ensure both left and right fence are perfectly aligned with each other. There are adjustment screws at different locations on your miter saw that will allow you to fine tune your saw for accurate cuts. I have a habit of checking our miter saws for 90 degree accuracy quite frequently. -- Jerry Nettrour, San Antonio, www.topqualitycabinets.net |
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#4 posted 391 days ago |
If some of the cuts are true and some aren’t, it’s more likely Russell’s chip idea or technique. If you’re not moving the table between these cuts that vary, that’s helpful. Do you have a sharper blade to try? Kindly, Lee -- "...in his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It" |
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#5 posted 391 days ago |
I had that happen once and it was caused by using a table saw blade instead of a slide compound blade. Are the teeth on your blade square cut? They should be. My tool sharpener sharpened it on an angle, as for a table saw. -- lionel wawoodworker aus |
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#6 posted 391 days ago |
Are you cutting on the pull or on on the push? |
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#7 posted 391 days ago |
Tino…. Blade coming loose from the arbor? You might want to investigate the cause before you use that saw again. |
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#8 posted 388 days ago |
Stupid work got in the way. Thanks for all the replies! I won’t be getting into my shop until after the 8 of June perhaps even later than that. I forgot to mention that the arbor stop/lock on the right side of the blade doesn’t work . Push it down, and it doesn’t stop the blade. I think that I’m going to have to take off the blade completely, and check that arbor itself. Tell you what I find. Thanks again for all the feedback. |
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#9 posted 252 days ago |
Hi Everybody, Wanted to give you a post mortem of how I fixed my SCMS. With a regular square, I couldn’t really see any deviation of the blade from 90. What I had to do was, use a digital angle meter with a magnetic base. I stuck the meter on to the blade, and adjusted it from there. As a reference point, I put the meter on the deck of the saw and zero’ed it out. Then I stuck the meter onto the blade and saw that it was 0.1 degree off. i adjusted the blade angle using the screws in the back. All in all, it took me about an hour to do. It made me a very happy camper! Thanks for all the advice. -T |
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