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Learning how to build Lotus Seven replicas...together!
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PostPosted: November 6, 2017, 7:00 pm 
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Joined: August 21, 2017, 7:37 am
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Started cutting today with a 10" Concord titanium carbide 80 tooth steel blade. This blade is rated to 5350 rpm so it does NOT require a super expensive cold saw. I stuck it in a spare cheapy miter saw spinning at 4800rpm. Ive tried abrasive blades in same saw and they worked but very messy, lots of sparks, super scary and shirt lived. This blade makes almost no sparks and held up just fine through some 1 1/2" sch40 pipe so far with excellent cuts.

Git it off ebay fir $40 shipped.

Ill report back with an approx number of cuts once it quits on me


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PostPosted: November 6, 2017, 7:27 pm 
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Joined: December 17, 2010, 1:24 pm
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Location: Gainesville, Mo.
See if you can get some pics that show the quality of the cut. Oh, how about thin wall? you know, Locost frame stuff. This sounds VERY interesting!

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PostPosted: November 6, 2017, 8:25 pm 
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ngpmike wrote:
See if you can get some pics that show the quality of the cut. Oh, how about thin wall? you know, Locost frame stuff. This sounds VERY interesting!


Lightest i have is some .125" angle. I have some stainless tubing but i dont want to cut it with this blade. It would likely overheat and dull quickly.

Couple samples. Fitst cut seems to leave a burr, then no burrs?

Had to drop phone camera settings to minimum and still crop it to get it under 2mb limit to upload


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PostPosted: November 6, 2017, 9:59 pm 
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Joined: June 8, 2010, 8:02 pm
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Location: White Rock, BC, Canada
I'm so sick of abrasive chop saws. Looking forward to hearing how this works out.

Cheers.
Cory

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PostPosted: November 6, 2017, 11:25 pm 
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Joined: December 17, 2010, 1:24 pm
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Location: Gainesville, Mo.
Thnx 4 the pics! Good clean cuts. Still like to see some thin wall mild steel tube.

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PostPosted: November 7, 2017, 12:41 pm 
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Joined: August 21, 2017, 7:37 am
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ill try and find so small square stuff. I think i remember seeing some 1" 16ga around the shop


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PostPosted: November 7, 2017, 11:26 pm 
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Joined: December 17, 2010, 1:24 pm
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Location: Gainesville, Mo.
That would be great! If this blade works on the frame tube, then I can use my radial arm saw instead of a "Chopper" saw! A much more pleasant option IMHO!

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PostPosted: November 8, 2017, 9:26 am 
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Joined: October 19, 2012, 9:25 pm
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Location: Summerville, SC
I saw the first pics and pulled the trigger on a new blade. It will fit my table saw or my compound miter saw.

Thanks for the tip. :cheers:

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PostPosted: November 17, 2017, 2:37 pm 
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Joined: November 13, 2017, 7:35 pm
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Anyone tried this on thinner tubing yet? about to outfit my shop with what I am missing and was just looking at these blades on Home Depot's website.

https://www.homedepot.com/p/Evolution-P ... /204302797


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PostPosted: November 17, 2017, 3:43 pm 
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Joined: April 12, 2012, 11:56 am
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Location: Pemberton, BC
I went this route originally and bought the Milwaukee cold saw, but I didn't enjoy it. It is loud, and although no sparks, it produces sharp chips. Also, I found it hard to make mitre cuts. I posted it for trade on Craigslist, and traded it for a 7x12 band saw. Best move I ever made.
The shop that I traded it with, uses it where it shines. Portability in the field and fast cuts. Neither of which matter to me.
We had this discussion before, and I recall that some concerns were raised about metal chips getting into the saw motor, where it was intended for cutting wood. I have no idea if this is correct.
Toobusy, read up on how the blade has to be fed into the work piece. I remember that it is of some importance, as they can grab violently. Don't know how that would apply to a table saw, but it might be wise.

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PostPosted: November 18, 2017, 9:00 am 
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Joined: August 21, 2017, 7:37 am
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Martin makes good points. I haven't used saw for miters yet and when I do I'll be using the clamp the saw came with modified to hold pipe. So far chips in motors haven't been an issue. I'd love a bandsaw but for $40 I love the tooth blade over an abrasive blade.


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PostPosted: November 18, 2017, 2:41 pm 
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Joined: July 17, 2015, 1:56 am
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Location: Morrisville, PA
I currently have the RAGE III compound miter saw and I love it. The base of the saw is pretty much the same as the harbor freight 10" but the motor and the gear box are very stout.

I have chopped 0.06 wall with out issue. 1/8" plate into strips (scary). and 1/4" wall 2x2 no issues. As with all metal cut anything going slow is important.

I haven't had issue with the miter. Does require tweaking out of the box.

I have cut at least 2 frames worth of metal on the first blade no troubles.

The only mod i recommend is the chintzy mater grips that these saw and all other cheap miters have. I am working on low profile drill vice added to the sides.

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PostPosted: November 18, 2017, 6:47 pm 
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Joined: August 21, 2017, 7:37 am
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I just cut some 1/4 x 3 bar earlier. Like butter and made nice cuts I was able to weld prep and stick together nice and square


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