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View Full Version : Please help with metal cutting tips, shortening Jet fence rails



Larry Rasmussen
10-28-2009, 1:24 AM
Thanks in advance for any metal cutting tips. I am putting together a Jet Pro Saw table saw to use with a Jessem miter slide attachment. I am going to shorten rails by about a foot, just a hair shy of even with the main table top. That will give me the stock 30 inch rip capacity and I really do not want longer rails to the right. To install the Jessem slider I need to have no fence past the main table.

The back support is L shaped, perhaps 1 3/4" per side and 1/8" thick. Front rail support is another L a bit larger and about 3/16" thick. What I think of as the rail is a square tube 2" to a side and 1/8" thick.

Available: 10 inch chop saw, light recip cordless saw, Makita cordless jig saw, hack saw.

Experience tells me that if I use the hack saw it will be a pain and not very clean. I don't have metal blades for any of these so it's out to Home Depot or Lowes after work tomorrow. Is this a practical cut on the 10" Hitachi sliding miter saw without spending big bucks on a blade? Any suggestions will be helpful.

Thanks,
Larry R,
Seattle

Ray Newman
10-28-2009, 1:40 AM
I'd call a few machine shops and ask what they would charge to cut & dress the rails. Might be cheaper in the long run.

Paul Atkins
10-28-2009, 2:42 AM
Not sure the cordless tools would give you a nice cut in a short time. A power hacksaw or a metal bandsaw would be my choice. A brand new bimetal hacksaw blade would actually do a good job, but not too speedy.

Cary Falk
10-28-2009, 4:25 AM
To use your chop saw you will need something like this.
http://www.amazon.com/Bullard-Abrasives-Metal-Cutoff-Wheel/dp/B000MRMVQC/ref=sr_1_28?ie=UTF8&s=home-garden&qid=1256718337&sr=1-28
It is going to make a big mess of you saw and if you use your saw for anything other than shopping 2x4s and building fences in the back yard I would probably advise against it.

A good blade in the reciprocating saw is rpobably your best option on the list. I vote for having someone with a horizontal metal bandsaw doing the cutting. I don't know where you are at, but if you are near me I will do it for you. Maybe a high school with metal shop could do it on the cheap.

Rick Lizek
10-28-2009, 5:35 AM
http://www.mkmorse.com/
The Morse Metal Devil would work on your miter saw. I've cut 2" cast iron and 1/4" angle iron on my miter saw and table saw. Most folks don't know about these blades. I first saw one demonstrated 20 years ago. I believe a company called Jancy Engineering pioneered the technology. It was years before anyone else came out with one. Makita, Milwaukee and even Harbor Freight has them. A few sparks at the most.

Jeff Willard
10-28-2009, 6:47 AM
I just used a fine toothed metal blade in a reciprocating saw when I did my 66. Dressed it up with a file. It's not a particularly difficult task for a decent blade.

Larry Fox
10-28-2009, 7:11 AM
I used a hacksaw and dressed it with a file when I did the rails on my Unisaw. It came out fine I think. Do yourself a favor and save the offcuts in case you want to have them welded back together in the future.

ROY DICK
10-28-2009, 7:30 AM
A good hacksaw frame, (I have a spartan), and a new blade, like a lennox 24 tooth. Use a square to mark the sides and follow the lines. It should do a great job, then dress up the edges.
I agree save the cut offs no matter how you decide to cut it.

Roy

Fred Belknap
10-28-2009, 7:46 AM
Can you just move the fence to the left a little?

george wilson
10-28-2009, 11:41 AM
I could cut them and mill the cuts nicely for free,but you'd have to send them in a returnable box with return postage.

Frank Martin
10-28-2009, 12:48 PM
If you already have a new bi-metal hacksaw blade and a file, believe me it won't take more time than tinkering through all the options. That is what I did when I needed to shorten my unifence rail and the uniguard rail which did not really take that much time (less than 5 mins for each cut). Cleaned up nice with a file.

John Coloccia
10-28-2009, 2:07 PM
I would personally just cut them with a hacksaw, and clean it up with a file....much like the other folks here.

I have a small cutoff saw for metal, but it wouldn't even be worth it for me to dig it out for 2 cuts, and the ends would still have to be filed clean.

Consider a quick spray with something like rustoleam when you're done to protect the exposed metal from corrosion in the future.

Chris Tsutsui
10-28-2009, 2:13 PM
I would do the hack saw approach as well. But if you think it will take too long then put a metal cutting blade on the sawzall and maybe use some cutting oil as well to reduce friction/heat.

Then I'd clean up the edge with a file, or a dremel.

William Schmitz
10-28-2009, 3:43 PM
I second the use of a 10" abrasive cut off wheel. I shortened my rails recently using this type of wheel in a radial arm saw. A miter of cutoff saw would work just as well.

You get a clean, even cut, and the abrasive wheels are cheap.

Cliff Rohrabacher
10-28-2009, 6:08 PM
Is this a practical cut on the 10" Hitachi sliding miter saw without spending big bucks on a blade? Any suggestions will be helpful.

I have frequently put a metal abrasive blade in my makita chop saw.
In fact I purchased it exactly to cut 3/8" thick aluminum flat stock in a commercial application.

It's performed brilliantly every time.

If the Rails are Chromed an un-cooled abrasive saw will shock the chrome loose from the cut ends and start peeling.

So use a coolant flow if they are chromed. Any coolant will do. Even a stream from a garden hose.

If you worry for the motor poly bag it for the short period the cuts'll take
It won't burn up.

brent warner
10-28-2009, 6:26 PM
cut it with a hacksaw, it NOT that much work
brent :)

Ned Ladner
10-28-2009, 8:17 PM
I'm am going to shorten the rails on my saw as well. Was thinking about metal cutting blade in my Bosch jig saw. Any thoughts?

Bruce Wrenn
10-28-2009, 8:40 PM
Bring by the shop, and I will cut it for you using my metal cutting band saw. I'm in Apex NC. Seeing as how you probably aren't close to me. list a location, and see if someone has a power hack saw, either stationary, or portable that you could use.

Larry Rasmussen
10-29-2009, 12:23 AM
A Bosch Progressor saw blade with my Makita 18v cordless jig saw; four blades actually. It was really easy and yes I can see using the manual hack saw without much problem. Gotta go, just wanted to say thanks.

Larry R
Seattle

Dick Aubochon
10-29-2009, 5:43 AM
A Bosch Progressor saw blade with my Makita 18v cordless jig saw; four blades actually. It was really easy and yes I can see using the manual hack saw without much problem. Gotta go, just wanted to say thanks.

Larry R
Seattle

I just had mine cut to put the Jessem table on my 22124 Considered all the alternatives offered here, but ended up bringing them to a welding shop and had them cut on a power band saw for less than the cost of buying new metal cutting blades.