Introduction: Make Sliding Table Saw Cut Square (without Squaring Tool)

I was rational making a note for myself for future day reference, and I decided to put it online and then that someone may get use for it. It is non the Quickest nor Easiest agency to gain IT.

There are many ways for adjusting the palisade of sliding table saw thus that information technology derriere cut square (90 degree), I just came out my own way. The easiest one is just finding a reliance Framework Square and use it to calibrate the fence. I fire't found one in my area and still having a lot of acrylic sheets on hand. So I decided to make one.

My way just involve a spacious sheet of coagulated material and the sliding table sawing machine itself. Having a measuring tool like calliper keister help but you don't take unmatched for this.

I archived a squareness of <0.1 mm for 45 cm in length, or less than 0.013 degree. It's overkill for a sliding table adage, since a small chip stuck on the fence will create a larger error than this. But it feel good :)

Supplies

Sliding Table Saw, Solid Sheet Material

Ill-use 1: Finding Material

You need a solid sheet of material to done this, I fair use a 5 mm Acrylic Sheet.

Use the biggest one that still can fit nicely connected your sliding tabular array.

Measure 2: Cleanup the Rails

Cosher the rail and needle bearing for sande cut and abridge error when we making solid.

Step 3: Mark a Reference Corner

Pick out a reference corner and cross out it, the turning point should has one sure straight boundary and putting information technology at the fence broadside. Mark the lower left-wing corner.

If you don't have a trusty undiluted edge on your embodied, cut one. The squareness is non important now.

Step 4: Start Cutting 1st Edge

Blow out any debris within the sheet and the fence. Any small chip wish feign the result.

Make sure the material touch dead to the wall in, if whatsoever gap found and cypher 'tween it, you may have a crook on stuff operating theatre the fence. See the Troubleshooting at below.

Punctured the 1st edge if you don't feature a gap problem.

Troubleshooting:

1. Try rhenium-cut the material happening the adage again, use decent reenforcement to pushing down the material to the set back. If still spotting a col, it may because your machine's track are non straight person. Try the next step to find out.

2. Obtain the other same bodily (or 2 new but same material, like 2 pcs of lumber), cut out again on the saw. Placing them together and control any gap base. If there's a disruption, you hold a cut on the machine rails. Unfortunately I don't let a easy mode to solve this :(

3. If some material fit nicely together, you have a not straight fence, antitrust like my case, the underivative steel fence is curvy and not square to the table too (tilted upward). Thus I just cut a slice of log and then use it as the fence.

Step 5: Cutting the 2nd Edge

After cutting the 1st butt against, flip the sheet horizontally. The edge that veneer you, smooth facing you. but the 1st edge just goes to the right.

Geld the 2nd edge. Same guard A the 1st i

Step 6: Piercing the 3rd

Use a file to clean house off the burr if needed, my acrylic has whatever paper burr that need to clean off in front the 3rd cut.

Aft that, placing the mark on the frown right corner just suchlike in the picture. NOTE that the acrylic was somersaultin game to the state that same as 1st incised and then turn 90 degree to the left.

Initiate cutting if you don't have trouble.

Step out 7: Checking the Square

Later the 3rd cut, riffle the acrylic paint vertically. The mark like a sho goes to the upper berth right and so cladding the table.

Placing the acrylic tight to the fence, and lento push it near to the saw. Slippery the tabular array to check if the top meet the saw 1st or the bottom unity.

Case 1: Bottom meet the saw 1st, leaving a gap at the overstep
Problem: This final uncut corner has a lower angle than other 3 cut corners.
Argue: New 3 corners have the lean against bigger than 90 level.

Lawsuit 2: Tipto adjoin the adage 1st, leaving a spread at bottom
Problem: The final rough corner has a larger angle than other 3 cut corners.
Reason: Else 3 corners have the angle small than 90 degree

Case 3: Small or atomic number 102 disruption 'tween the saw and the sheet
Problem: Might still have a problem with angle but not so visible, proceed to final checking microscope stage for confirming
Reason: Other 3 corners stimulate the weight that very nonopening to 90 degree, you can stop here if you want

Measure the col if you involve, or conscionable eyeballing and remember it.

Step 8: Explaining the Situation

In the 1st case, you have the last box smaller than 90 degree, means that other 3 corners must have more than 90 degree. Since for a Quadrilateral (Basically means a material body with 4 corners but not limited to rectangle and square, all corner tot should isochronal to 360 degree.

And likewise all 3 cutting off corners have the same angle due to unvaried setup happening the proverb, soh they have the same mistake, and that mistake sum up in the final street corner. For example, you have 91 degree on all of them, the inalterable recession should experience 87 degree.

For case 2 is all the aforementioned, evenhanded all the perforated corner have tilt that to a lesser degree 90 academic degree and making the last corner has 3 times more mistake than the rest.

Step 9: Problem Solving

Now is the simple and final footprint.

If you have an angle that More than 90 level connected the last corner, you need to Increase the surround angle relative to the saw sword. And vice versa.

But adjust by how very much?

Since for the close turning point, there is 3 times the angle error. So using the last corner as a guide, adjust the angle by 1/3 of the last angle related to 90 degree.

But still has incomparable problem.

Step 10: One More Trouble

Since if you proceed to loosen the knobs just to adjust the angle, you will quickly find out you wish lost the original angle and stimulate no idea how some you want to adjust. You need to remodel again all the march if you are in this situation.

If you want to increment the fence angle, the solution is, using the sheet itself as a pass over, stick back the sheet firmly to the fence, just using some tape or exercising weight to secure the sheet to the table, don't give it any find of touching during adjustment.

Now tease the knobs so gain the fence slant. If you unable to increase the tilt due to no room to adjust. Stiffen it backmost and make sure information technology nonetheless stay on contact with the sheet.

You power have the problem of the holes indecisive not large sufficiency to give you way to aline. In my case, I made the fence outgoing of wood, later found out the pickle is not big enough for adjustment, so I upright drill bigger holes on it.

If you desire to decrease the fence angle, secure the weather sheet as to a higher place, but this time fair circle the final angle on the tabloid and good IT. Then just loosen the fence then move it to the sheet.

Step 11: Checking the Result

To check the result, repeat all the process, and looking for the ultimate weight. If information technology looks 90 degree on the last corner, felicitation you are cooked! The fence are forthwith square to the saw, and you can Keep out This Sheet as your reference square for your other project.

But you are picky atomic number 3 ME, just checking with eyes May non be so accurate, soh I push the table back and away, slowing bringing the sheet unreal to the sawing machine until it barely tint. Making some scribing sound with the tooth of the power saw. If the wakeless hear to be changeless, the saw are now very very second power to use.

If the scribing sound vanish means the gap become big, and if the saw tooth start moving or turning, the opening become too tight.

Keep repeating the swear out and you leave begin a very square sheet and a sliding table saw that also sliced very square up.

I negociate to make the error down the stairs 0.1 mm in the 1st 45 Cm snub, more than that the material will overhang and the aboveboard cannot be guarantee. (My table are short and I add a plywood to extend IT)

I marked the sheet as reference square and keep IT on a dependable berth, in case one day the fence is out of quadrate, I can take away the sheet and then just role it as a source to speedily set the square. And also the canvass is quite a useful for strange project although it's not rather easy to use of goods and services.

The treat seat constitute very painful if you make extraordinary tiny mistake. My good word is still get a proper, trusted framing square, and and then straight away you can habituate it to set the argue angle.

In my case, I am too idle and near to buy a frame straightarrow (I live in a small townsfolk in Malaysia, I ne'er seen a proper frame square in any store I visited in my area, all the "square" I can start is not square either).

And then I take exception myself to make my saw square without any fancy tool, and I did it. :D

If you have some smarter idea, please comment in below.

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