Instructables

how to convert a portable circular saw into a table saw

wondering if anyone has any idea how to build a platform that will turn a portable circular saw into a table saw.

shooby3 years ago
I've been working as a carpenter for a year or so now, and most of the high quality circular saws I've seen come with pre-drilled holes for this purpose (though obviously no craftsman would let that be a become a buying point, holes can be drilled easily enough).
In that year, have you learned that converting a circular saw into a table saw is one of the most dangerous things you can do? I'm not sure what pre-drilled holes you are referring to but the only ones on the bottom plate or shoe are for mounting it to the saw or maybe for a rip guide fence accessory, not to turn it into a table saw.
From what I've seen, rip guides tend to have a dedicated slot, and I've never seen a fence used on a circular saw.

I imagine that it's dangerous primarily because of how its implemented, not due to some inherently dangerous aspect of circular saws themselves. For example, somebody might remove the guard, but not fashion a new one for use with the table...not necessarily a good idea.

Is there a particular safety concern you know of that takes precedent over others? If so I'd be curious to know. Thanks.
There may be something to convert or mount a circular saw into a panel saw, something different which is the kind the home centers have to cut up your big sheets of lumber.

Implementing it is a danger. Converting to a table saw means turning the entire circular saw upside down. A couple of safety items are defeated - you probably have to lock the saw on and work it by plugging and unplugging the power cord, no safety cutoff - you have to reach under to feel the switch, there is no kickback device/splitter, there is no blade guard, blade rotation may be backwards due to the way the saw is mounted, did someone just use a few wood screws to mount the saw underneath the table where it might pull out from the vibration, yeah, there are a few ibles to convert a circular saw to a table saw but not the wisest thing to do unless you account for those potential hazards created.

I will apologize if there was any offense in the tone of my original comment. Judging by your reply, I think you are keenly interested in learning your trade. Good luck.
Actually it is a matter of implementation. I am working on a project like this of my own. The first thing i did was triple check the correct direction for rotation, The next thing i did was work out how i was going to mount my kill switch and how i would keep my electrics enclosed so as not to pose a safety or fire risk. The third thing i did was to check the weight of the saw to make sure that the attachment to the baseplate was strong enough to support the saw, then i figured out what would be the sturdiest way to connect the baseplate to the table.

When working with power tools, and especially saws and even more especially electricity safety and thorough planning is a MUST.

There are a lot of people that shouldnt be allowed to use powertools, and when attempting to use powertools for off label purposes their potential for danger increases by orders of magnitude, but that is true of drinking alcohol too. take all proper precautions, think it through thoroughly, execute it soundly and use it cautiously.

If youre not able to do that then dont attempt use of power tools at all.
Flintlock3 years ago
Please don't. I'm concerned that your eyes and fingers won't make it.
home12505 years ago
I found a saw table by Craftsman at a junk store earlier this week. It is the model 925963. The circular saw is clamped from underneath. It has an agile blade guard, a rip fence, and an agile square. It APPEARS to be basically new and only slightly used. I am up to my elbows in alligators, and have not had a chance to try it.   It appears that if you take the time and exercise the patience to clamp it properly, all should be OK. I will attempt to check it out in the coming weeks, and will let you know how well it works. (I only paid $5.00 for it. How bad can I get burned?)
jdgreen2276 years ago
My first contribution to Instructables....back in 1984 Sears sold a Craftsman circular saw table through it's tool catalog. Model number 25965C...price was $73. I purchased a used one from a secondhand store for $30 and mounted a saw underneath. Table size was about 20X30 inches with the extensions. It came with a well designed fence, miter gauge, and saw guard, and had a pushbutton switch on the front. You used the adjustments on the saw to change the cutting depth and blade angle. When mounted to a workbench it was capable of surprisingly good cutting. You would remove the blade guard of the circular saw and fasten the trigger switch on, and plug it unto the saw's switch panel. When I got a "real" table saw, I modifed mine to use a 19.2 volt cordless saw for trim and molding cutting. With the thin keft blade, it does a surprisingly good job for me. Yes you can jury rig a regular table for cutting...BUT RIG UP A BLADE GUARD OF SOME TYPE.
bucknut7 years ago
Several years ago there was a table,produced by an actual company, that was for this very purpose. I had one but did not get custody. It was either purchased from K-mart or Meijer. I have been looking everywhere for another. This product did or does exist.
vasdef (author) 7 years ago
Thanks for the speedy advice and comments, folks. If I do hack off any fingers, etc.. I'll be sure to post pix asap. V
Kiteman7 years ago
Best advice: don't.
Go to craigslist, find old 70's era craftsman for about $50 bucks, buy. Got mine for $45 from garage sale, little tuning and it works a treat.
davidbuzz7 years ago
As it happens, I just posted a (rather large) instructable 2 days ago, which includes a couple of photo's of my ad-hoc saw table...made in exactly the same way that the earlier posters suggested - with a circular saw and a slot cut in it. my instructable is:
http://www.instructables.com/id/Build-yourself-a-portable-home---a-mongolian-yurt/ and the saw table is the first 2 photo's on step 3!
good luck, and remember to ALWAYS treat it like it's about to cut all your fingers off at any second.
(ie. stand well clear, and use a push-stick)
Lftndbt7 years ago
Just a handy tip.. When ever doing something like this, try and also use a thin kerf blade with as many teeth as possible... So when you cut off your fingers, hand, arm... Saves the doctors hours of trimming the mess off your stub/ stub's and they will be able to just sew it/them back on again... Cheer's... (Table saw's WITH guards are dangerous enough thank you very much!)
trebuchet037 years ago
Wood Table....

Saw a few blade widths into the top....

Bold the saw underneath the table so it fits through the slot....

Add a switch....


unsafe + cheap + ruins a table top.... But yes, it worked :p