Planer/Chisel Jig Chisel Not Turning Out Square

[JBASport]

Hi, I have been using the jig on my grinding wheel on my Tormek T7 & using the planer/chisel jig, I made sure it was square in the holder, but my chisels are turning out slightly off square. Any advice would be much appreciated. Terry

[Ken S]

Welcome to the forum, Terry.

Please forgive a little linguistic housekeeping. "Planer" refers to the blades of electric thickness planers and electric jointers. This jig is the SVH-320 (shown in this link)

https://tormek.com/en/products/grinding-jigs/svh-320-planer-blade-attachment

Chisels and hand planes use the SE-76 or SE-77 Square Edge jig. Plane blades are often called "plane irons".

The best way to make sure a chisel edge is being ground square is to blacken the bevel with a marker. Then turn the grinding wheel by hand and check it with a small square. If you are not grinding square, tap the handle of the chisel lightly to eyeball it square. Get the grind square before completing sharpening.
This online class covers chisels:

https://www.youtube.com/live/wMATay8ITE8?si=_ecJHWJxUwEOyury

It sounds more tedious than it really is.

Keep us posted

Ken

[JBASport]

Many thanks for the advice. Terry

[John Hancock Sr]

Another method is to use a small square. If you are establishing the bevel then the marker method may not work. I have a small "double square" that I use and as I go along I use it to ensure that the edge I am creating is square and adjust accordingly. When you re-sharpen you can use the marker method since you know that the primary bevel is good.

Another point is to make sure that the chisel or plane iron is hard up against the stop as you tighten. I have fond that it is easy to slip ever so slightly as you tighten the jig down.

[JBASport]

Thanks, will try that. Terry