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12" mitersaw used for cut off grinder?

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  • #16
    I found this at a shop 1/4 of a mile away from mine. Said it wouldn't cut straight. Had a new Lennox blade on it. I offered to fix it for free for him. He said he was done with it and wanted $200....so I did that
    He even delivered it to where it's setting in the pic along with giving me that motor as well





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    • #17
      That's great deal. (you get all the breaks) Blades make a big difference in cutting square. I don't use the coolant on mine anymore. I use lenox diemaster 2's, and change tooth count depending on what i'm cutting.
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      • #18
        Man...gotta quit "thread jacking"
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        • #19
          Originally posted by wrenchnride247 View Post
          Man...gotta quit "thread jacking"
          We are still discussing saws

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          Miller Dynasty 700...OH YEA BABY!!
          MM 350P...PULSE SPRAYIN' MONSTER
          Miller Dynasty 280 with AC independent expansion card
          Miller Dynasty 200 DX "Blue Lightning"

          Miller Bobcat 225 NT (what I began my present Biz with!)
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          • #20
            Originally posted by SundownIII View Post
            DON'T EVEN THINK ABOUT IT.

            Woodworking sliding mitre saws (and I have a Makita just like that one) do not have the clamping vice needed for cutting steel. I have used a cheap woodworking mitre saw for cutting aluminum but wouldn't consider it for steel.

            For cutting steel, particularly at any angle other than 90 deg, tremendous pressure us put on the material being cut, trying to draw it into the blade. (Maybe best to be thought of as pulling the material through the vice). A woodworking mitre saw lacks sufficient holding capacity..
            SundownIII is right, wood saws are not built for cutting steel. You need to have a much more rigid clamping vice. On 90 degree cuts it's not so critical, but as mentioned before, on angle cuts, the blade will want to grab and pull the work. Having a second clamp on the vice jaws is a good practice.

            One thing that wasn't mentioned in this threat is RPM. I think wood saws run at a higher speed than cold cutoff saws. My Evolution saw runs at 1450 RPM, I think many wood saws run around 4000 RPM. If that's the case, then the cold cutoff blade teeth may not handle the higher RPM. I've been using an Evolution saw for several years. The frame and vice are built much heavier than a wood saw - just what's needed for cutting steel. I would NEVER try cutting steel on a wood saw - a really bad idea.
            MTBob
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            • #21
              The main reason not to use a woodworking miter saw for metalworking IS the blade speed. Note the difference in max. rpm stamped by the blade manufacturer and you'll begin to understand why.

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              • #22
                Never talked about using a metal cutting blade like in the Cold saw or such these types of things need incredible holding power. When using the table saw with an abrasive cutoff wheel It barely needs to be held at all if fed straight.

                So, I as talking a 12" abrasive cutoff blade: These are good to 5100RPM's. The saw turns at 4100rpms. I've used abrasive wheels on cicular saws with good reasult thought usually chew thru them pretty quick. I figure I'm going to suit up with safety gear and give it a go. The saw was cheap money and the blade is like 7.00 if nothing else the blade will simply end up on the table saw and I'll use that instead.




                By the way. The band saw is a nice thing to have. My problem is I'm room limited until I build my new shop and that won't be for a couple more years.

                (stored outside) Besides having a complete Blacksmithing shop, including all the shrinker and benders and shears and 3 anvils and large forge and all the hand tools, roughly 6 tons of equipment.

                In the shop (15X18') now I have a 50 ton press, 50 gallon parts washer, Miller Dynasty 350, 2 ton engine hoist, welding table, 20" drill press, tool cabinet, Transmission rebuild stand, Welding table and the list goes on.

                Everything I make has to be able to fold and move with ease. I'm getting ready to make my new welding table which will fold and be on casters. I'll post pictures when I get it started.

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                • #23
                  Cool...looking forward to that.
                  Sorry 'bout the hijack but you got a pretty good thread going here.

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                  Miller Dynasty 700...OH YEA BABY!!
                  MM 350P...PULSE SPRAYIN' MONSTER
                  Miller Dynasty 280 with AC independent expansion card
                  Miller Dynasty 200 DX "Blue Lightning"

                  Miller Bobcat 225 NT (what I began my present Biz with!)
                  Miller 30-A Spoolgun
                  Miller WC-115-A
                  Miller Spectrum 300
                  Miller 225 Thunderbolt (my first machine bought new 1980)
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                  • #24
                    Originally posted by allessence View Post
                    Never talked about using a metal cutting blade like in the Cold saw or such these types of things need incredible holding power. When using the table saw with an abrasive cutoff wheel It barely needs to be held at all if fed straight.

                    So, I as talking a 12" abrasive cutoff blade: These are good to 5100RPM's. The saw turns at 4100rpms. I've used abrasive wheels on cicular saws with good reasult thought usually chew thru them pretty quick. I figure I'm going to suit up with safety gear and give it a go. The saw was cheap money and the blade is like 7.00 if nothing else the blade will simply end up on the table saw and I'll use that instead.




                    By the way. The band saw is a nice thing to have. My problem is I'm room limited until I build my new shop and that won't be for a couple more years.

                    (stored outside) Besides having a complete Blacksmithing shop, including all the shrinker and benders and shears and 3 anvils and large forge and all the hand tools, roughly 6 tons of equipment.

                    In the shop (15X18') now I have a 50 ton press, 50 gallon parts washer, Miller Dynasty 350, 2 ton engine hoist, welding table, 20" drill press, tool cabinet, Transmission rebuild stand, Welding table and the list goes on.

                    Everything I make has to be able to fold and move with ease. I'm getting ready to make my new welding table which will fold and be on casters. I'll post pictures when I get it started.
                    No problem with using an abrasive disc, other than the abrasive dust and likelihood of melted plastic parts from the shower of sparks.

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                    • #25
                      allessence,

                      I'll make you a deal.

                      You send me that 12" Makita Sliding Mitre Saw and I'll send you any top quality metal chop saw (your choice). Ask nicely, and I may even send a Milwaukee Metal Cold Saw.

                      That Makita is about a $600+ saw which was designed for cutting wood. A good Milwaukee chop saw with mitre vice, designed for cutting metal, is just a few bucks over $200. Heck, a Milwaukee cold cut saw can be had for less than $500.

                      Just not understanding the logic.

                      Besides, I don't want to be in your shoes when one of those abrasive blades explodes and takes out the plastic blade shield on the Makita. At least on the metal chop saws the guard is metal.
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                      • #26
                        Originally posted by SundownIII View Post

                        Just not understanding the logic.

                        The compound angles And the ability to change them quickly while reading directly off of the saw instead of fumbling around with whatever.
                        Repeatability etc...

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                        Miller Dynasty 700...OH YEA BABY!!
                        MM 350P...PULSE SPRAYIN' MONSTER
                        Miller Dynasty 280 with AC independent expansion card
                        Miller Dynasty 200 DX "Blue Lightning"

                        Miller Bobcat 225 NT (what I began my present Biz with!)
                        Miller 30-A Spoolgun
                        Miller WC-115-A
                        Miller Spectrum 300
                        Miller 225 Thunderbolt (my first machine bought new 1980)
                        Miller Digital Elite Titanium 9400

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                        • #27
                          FK,

                          All those things are great and that's how I use the saw (like the one in the picture) for WOOD and plastic (starboard).

                          Don't know what your experience has been cutting critical angles with an abrasive blade, but mine have been less than rewarding. Before I got the cold cut saw and the bandsaw, I used to try to cut "exact" angles with an abrasive blade without much success. Too much flex in the abrasive blade. Would end up cutting my work slightly oversize (1/16" or so) and do the final finish on the vertical belt sander with a miter gauge attached.

                          I do have an old Craftsman Professional 10" compound miter saw (metal blade guard) that I do use to cut aluminum with a carbide blade. Does a better job than the cold saw.

                          A steady diet of steel will quickly destroy that Makita. It's a great, well built saw, but that's not what it was designed to do.

                          I've said enough. You pay for the dance, you call the tune.
                          Syncrowave 250 DX Tigrunner
                          Dynasty 200 DX
                          Miller XMT 304 w/714D Feeder & Optima Control
                          Miller MM 251 w/Q300 & 30A SG
                          Hobart HH187
                          Dialarc 250 AC/DC
                          Hypertherm PM 600 & 1250
                          Wilton 7"x12" bandsaw
                          PC Dry Cut Saw, Dewalt Chop Saw
                          Milwaukee 8" Metal Cut Saw, Milwaukee Portaband.
                          Thermco and Smith (2) Gas Mixers
                          More grinders than hands

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                          • #28
                            Originally posted by SundownIII View Post
                            FK,

                            All those things are great and that's how I use the saw (like the one in the picture) for WOOD and plastic (starboard).

                            Don't know what your experience has been cutting critical angles with an abrasive blade, but mine have been less than rewarding. Before I got the cold cut saw and the bandsaw, I used to try to cut "exact" angles with an abrasive blade without much success. Too much flex in the abrasive blade. Would end up cutting my work slightly oversize (1/16" or so) and do the final finish on the vertical belt sander with a miter gauge attached.

                            I do have an old Craftsman Professional 10" compound miter saw (metal blade guard) that I do use to cut aluminum with a carbide blade. Does a better job than the cold saw.

                            A steady diet of steel will quickly destroy that Makita. It's a great, well built saw, but that's not what it was designed to do.

                            I've said enough. You pay for the dance, you call the tune.
                            Oh I am totally with you...I hate abrasive blade and almost never use them. I just cannot stand the noise, mess, and wasted money. Not to mention the FLEX.
                            I watched one of those big Brilliant versions blow up into a friends arm one day. He deserved it tho as he was seeing just how hard he could mash it when it blew. In fact he did many other entertaining things before they let him go
                            But I would love to watch how this set-up works.

                            www.facebook.com/outbackaluminumwelding
                            Miller Dynasty 700...OH YEA BABY!!
                            MM 350P...PULSE SPRAYIN' MONSTER
                            Miller Dynasty 280 with AC independent expansion card
                            Miller Dynasty 200 DX "Blue Lightning"

                            Miller Bobcat 225 NT (what I began my present Biz with!)
                            Miller 30-A Spoolgun
                            Miller WC-115-A
                            Miller Spectrum 300
                            Miller 225 Thunderbolt (my first machine bought new 1980)
                            Miller Digital Elite Titanium 9400

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