Does anyone have any recommendations for accurately cutting t-slot extrusions? I am thinking of using my mitre saw, but don't know what kind of blade would be appropriate. TIA https://reprap.org/forum/read.php?177,119288,119288#msg-119288 Fri, 10 Jul 2026 03:51:02 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?177,119288,263108#msg-263108 https://reprap.org/forum/read.php?177,119288,263108#msg-263108 They are cheap and readily available and slice through like butter. I got this tip from a professional sheet metal worker.
Clamp an angle grinder in the add on stand that converts it into a chop saw for perfect angles.

Ordering stuff through Mitsumi is easiest though. Their standard cuts are very good and they also do more expensive high precision cuts.]]> dave3d Extruded Aluminum Frames Mon, 04 Nov 2013 16:27:24 -0500 https://reprap.org/forum/read.php?177,119288,229786#msg-229786 https://reprap.org/forum/read.php?177,119288,229786#msg-229786 ztoone Extruded Aluminum Frames Thu, 25 Jul 2013 06:10:39 -0400 https://reprap.org/forum/read.php?177,119288,192176#msg-192176 https://reprap.org/forum/read.php?177,119288,192176#msg-192176 Hacksaws, skillsaws, carbide saw blades, etc

Nothing works as good as what I currently use except a high bucks industrial machine

I use a General purpose metal cutting disc and it makes a real nice clean square cut

I attached an image of a 10 inch disc on my miter saw]]> EL34 Extruded Aluminum Frames Thu, 14 Mar 2013 18:42:03 -0400 https://reprap.org/forum/read.php?177,119288,159665#msg-159665 https://reprap.org/forum/read.php?177,119288,159665#msg-159665 ben11c Extruded Aluminum Frames Wed, 10 Oct 2012 01:27:03 -0400 https://reprap.org/forum/read.php?177,119288,151203#msg-151203 https://reprap.org/forum/read.php?177,119288,151203#msg-151203
It's best to have a sacrificial fence behind the beam, even if that's just hardboard. All you want to do is prevent short cutoffs from being tossed by the blade. I like to use blue painter's tape to hold short cutoffs. I run the tape from the workpiece, straight across the cut line and cuttoff, and down to the table. If the cutoff is long enough, I just clamp it and skip the tape.

Go slow and let the blade do the work! The noise will be a bit shocking at first, too :)

A bandsaw with a bi-metal blade is even better, though noisier. Again, slow is the key. You might also want to spray the blade with a 90/10 water/dishsoap mix for lube. It's messy, but the chips are smaller. Clamp the workpiece in a sliding table for that.]]> flink Extruded Aluminum Frames Wed, 29 Aug 2012 11:52:48 -0400 https://reprap.org/forum/read.php?177,119288,147714#msg-147714 https://reprap.org/forum/read.php?177,119288,147714#msg-147714
[blog.openbeamusa.com]

-=- Terence]]> Terence Tam Extruded Aluminum Frames Sun, 12 Aug 2012 02:10:43 -0400 https://reprap.org/forum/read.php?177,119288,122678#msg-122678 https://reprap.org/forum/read.php?177,119288,122678#msg-122678 PastaRocket848 Extruded Aluminum Frames Tue, 06 Mar 2012 15:24:28 -0500 https://reprap.org/forum/read.php?177,119288,121299#msg-121299 https://reprap.org/forum/read.php?177,119288,121299#msg-121299 NewPerfection Extruded Aluminum Frames Tue, 28 Feb 2012 00:10:59 -0500 https://reprap.org/forum/read.php?177,119288,119982#msg-119982 https://reprap.org/forum/read.php?177,119288,119982#msg-119982
Just don't forget the eye/ear protection because the chips are fast/hot and it will be loud.]]> Andrew Diehl Extruded Aluminum Frames Mon, 20 Feb 2012 22:24:13 -0500 https://reprap.org/forum/read.php?177,119288,119904#msg-119904 https://reprap.org/forum/read.php?177,119288,119904#msg-119904
It might be a good idea to put some sort of mesh or fabric over the vent ports on your saw so that the chips don't get sucked in and short the motor. Also, be very very careful about the offcut, as it will otherwise turn into a bullet. I use a clamp and bungee cord to pull small offcuts away from the blade.]]> Buback Extruded Aluminum Frames Mon, 20 Feb 2012 12:18:59 -0500 https://reprap.org/forum/read.php?177,119288,119403#msg-119403 https://reprap.org/forum/read.php?177,119288,119403#msg-119403
Obviously you can't cover t-track with plywood on a mitre saw, but I don't see any reason you wouldn't be able to cut aluminum t-track with a carbide or even HSS blade. Just take it slowly and make sure you're wearing appropriate eye wear and long sleeves.]]> relifram Extruded Aluminum Frames Fri, 17 Feb 2012 22:20:07 -0500 https://reprap.org/forum/read.php?177,119288,119288#msg-119288 https://reprap.org/forum/read.php?177,119288,119288#msg-119288 lincomatic2 Extruded Aluminum Frames Fri, 17 Feb 2012 07:09:38 -0500