12" planner knife adj gauge??

[jsburger]

I have never understood why the gauge does not come marked from Shopsmith.

[godavid2]

Thanks John!

[dusty]

With a properly adjusted set of knives does the old gauge not move up and down as the cutter head is rotated. It should because the mark is to be an indicator of where the cutting edge of the blade is positioned when the blade is at the "high point of the arc" and the blade moves "in an arc".

The blade, when adjusted properly, and using the new gauge should travel on the arc; the gauge should not move at all when the cutter head is rotated.

I do not believe the gauge is your issue.

Those gauges with the arc work exactly the same as do those gauges with the mark.

Of possible interest: http://www.shopsmithacademy.com/SS_Arch ... Knives.htm

[JPG]

With a properly adjusted set of knives does the old gauge not move up and down as the cutter head is rotated. It should because the mark is to be an indicator of where the cutting edge of the blade is positioned when the blade is at the "high point of the arc" and the blade moves "in an arc".

The blade, when adjusted properly, and using the new gauge should travel on the arc; the gauge should not move at all when the cutter head is rotated.

I do not believe the gauge is your issue.

Those gauges with the arc work exactly the same as do those gauges with the mark.

Of possible interest: http://www.shopsmithacademy.com/SS_Arch ... Knives.htm

Huh????

The 'old'(curved) gauge has an arc that equals the path of the blade as the blade is rotated.

The 'new'(straight) gauge has an edge that is a decreasing distance from the center of rotation of the blade.

The blade will just kiss the curved gauge as the blade is rotated equally along the gauge arc at a set radius from the center of rotation.(it gauges the blade height at any point along the arc)

The blade will interfere with the straight gauge at some point depending upon the distance the blade path extends(radius) from the center of rotation.(it only gauges the blade height at one point along the straight edge hence the need for a mark)

When the blade height is too high:

The old curved gauge will interfere with the gauge at ALL points along the gauge arc.

The new straight gauge will interfere with the blade at some point down from the top end of the straight edge and increasingly interfere at all point below that.

So IF the gauge is allowed to move, both gauges will move when the blade is rotated past the 'edge'.

When the blade height is too low:

The old curved gauge will clear the arc equally at all points along the gauge arc.

The new straight gauge will clear the straight edge at points below the mark. The distance below the mark is dependent upon the amount the blade is low.(i.e. it provides a relative(unscaled) indication of the amount the blade is low)

Since the old curved gauge did not provide the somewhat subjective indication of amount the blade height varies from 'the goal' I consider the new gauge somewhat of an improvement(it is also easier to manufacture).

Manufacturing deviations made the older gauge possibly inaccurate.

Those same deviations would occur if the mark was made a part of the manufacturing process so it was made a user process.

The part is stamped(sheared edge) and that will create an edge that is not smooth. The curved edge will vary in radius due to those surface irregularities. Those irregularities will not affect the accuracy of the straight gauge(not as much anyway).

Probably more that anyone cared to read.

[dusty]

Your comments are detailed but to me are very confusing as they DO NOT accurately describe how my OLD gauge is made and or used.

Maybe the problem is the result of me not having a clear understanding of what constitutes "the old gauge". I have only had my gauge for about 25 years. How long have you had yours? How long does it take for a gauge to become accurately referred to as "the old gauge?.

It is my understanding that the new gauge has the arc. I sure would appreciate it if you would post a picture of "The New Gauge",

[JPG]

Ahh now your post makes sense coming from that 'understanding'.

Now FWIW, the "old" gauge has an arc.

The "new" gauge has a straight edge which must be 'marked'.

Nick was referring to a 'new' gauge.

I do not know when it changed.

IF I have it backwards, I will edit my post(s) in this thread.

P.S. I believe this is a 'new' gauge purchased 2.5 years go.http://shopsmith.com/ss_forum/viewtopic ... 84#p248484

[dusty]

I'm still a bit confused about what constitutes an "old gauge" versus the "new gauge". I have had my gauge for many, many years and is therefore an "old gauge". It has neither an arc nor a mark. Well, it has a mark now because I marked it with an engraving tool. The mark is simply a line at the contact point between the blade and the gauge.

I would still like to see a picture of your arced gauge.

[chapmanruss]

Dusty,
The picture I posted earlier is of my Gauge that I bought about two and a half years ago. Godavid2 who started this thread has a picture of his Gauge that he just bought which is the same as mine without a mark, just like mine came from the factory. It is the same as the one Nick uses in his video from 2008 that you linked. It appears they have been using the same Gauge since at least 2008 or before you got yours. I have not seen an early manual for the Planer and did not know of one with an arc. Maybe Godavid2 has the early manual and can post a picture of that Arc Gauge in use from the manual or someone else out there has the early Planer Manual and can enlighten us.

[dusty]

Dusty,
The picture I posted earlier is of my Gauge that I bought about two and a half years ago. Godavid2 who started this thread has a picture of his Gauge that he just bought which is the same as mine without a mark, just like mine came from the factory. It is the same as the one Nick uses in his video from 2008 that you linked. It appears they have been using the same Gauge since at least 2008 or before you got yours. I have not seen an early manual for the Planer and did not know of one with an arc. Maybe Godavid2 has the early manual and can post a picture of that Arc Gauge in use from the manual or someone else out there has the early Planer Manual and can enlighten us.

Mine dates back to 1978/1979 when I bought the ProPlaner. I believe it was delivered as part of the ProPlaner. I say that because I have no receipt/shipping document that lists the gauge.

[dusty]

Dusty,
The picture I posted earlier is of my Gauge that I bought about two and a half years ago. Godavid2 who started this thread has a picture of his Gauge that he just bought which is the same as mine without a mark, just like mine came from the factory. It is the same as the one Nick uses in his video from 2008 that you linked. It appears they have been using the same Gauge since at least 2008 or before you got yours. I have not seen an early manual for the Planer and did not know of one with an arc. Maybe Godavid2 has the early manual and can post a picture of that Arc Gauge in use from the manual or someone else out there has the early Planer Manual and can enlighten us.

Mine dates back to 1978/1979 when I bought the ProPlaner. I believe it was delivered as part of the ProPlaner. I say that because I have no receipt/shipping document that lists the gauge. I had not heard of the one with an arc until this thread. Mark and/or no mark yes.