Michael Wenman
PRO Member
Where or how do I change my gap in an Open Segment from degrees to a percentage? Been searching all over and coming up empty on this one
Mike
Mike
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Gap Percentage
- Thread starter Michael Wenman
- Start date
I don't do open segment work but it appears if you change the open segment degree (upper right of screen) it changes the gap.
Michael Wenman
PRO Member
Correct, but need would rather have that in percentage. Saw in a video where someone had that set to a percentage..ie a gap of 4% rather than trying to calculate that to be 1.9782304 degrees
While I have only played with the software I am not sure can set a percentage.
choices are to
1. select open segment ring,
Make sure the open segment are X degrees is UNCHECKED.
INPUT : number of segments for the ring
board thickness, outside and inside diameter of the ring
outside open space (gap) for the open segment ring.
2. CHECK using open segment degrees and enter degrees .
Note: It is best to use the ring view for this.
The information box below the ring in ring view will give your the measurement and data.
(the outside open space will change in that info box , but not the one in the top right of the screen.
choices are to
1. select open segment ring,
Make sure the open segment are X degrees is UNCHECKED.
INPUT : number of segments for the ring
board thickness, outside and inside diameter of the ring
outside open space (gap) for the open segment ring.
2. CHECK using open segment degrees and enter degrees .
Note: It is best to use the ring view for this.
The information box below the ring in ring view will give your the measurement and data.
(the outside open space will change in that info box , but not the one in the top right of the screen.
Michael Wenman
PRO Member
I suppose that it really matters not as you can slide the segments around and get a gap that looks good. Guess it is just an OCD thing for me mathmatically that the piece I will be working on will be primarily 48 segments / layer so that equates out to a mitre angle of 3.75. Now that mitre angle would stay at 3.75 when using a gap percentage where if you put in a gap in degrees, that mitre angle will change down to say 2.68.
Mike,
A couple of years ago, the gap for open segments was calculated as a percentage of the segment edge length. You are probably looking at an old tutorial that showed a percentage of something around 20%. When I added the SegEasy plates, though, the gap on them was measured in degrees instead of a percentage. So I changed the gap to match the SegEasy plates. One method is not better than another, but it only made sense for the software to be consistent with the plates I was now selling.
However, I also made it possible for you to override this. At the front of the 'gap' line is a checkbox and if it is checked (it is by default), it automatically calculates the gap by the degrees specified. If you uncheck it, though, you get to pick whatever opening you like. You do this by putting a value in the 'Vertical Spacer' field in the left column. If you wanted the opening to be exactly the same for each row, you would just enter the same value in every row. You can have every row be different, though, so the bottom line is that you can have it any way you want it.
Please let me know if you have any questions on this.
Lloyd
A couple of years ago, the gap for open segments was calculated as a percentage of the segment edge length. You are probably looking at an old tutorial that showed a percentage of something around 20%. When I added the SegEasy plates, though, the gap on them was measured in degrees instead of a percentage. So I changed the gap to match the SegEasy plates. One method is not better than another, but it only made sense for the software to be consistent with the plates I was now selling.
However, I also made it possible for you to override this. At the front of the 'gap' line is a checkbox and if it is checked (it is by default), it automatically calculates the gap by the degrees specified. If you uncheck it, though, you get to pick whatever opening you like. You do this by putting a value in the 'Vertical Spacer' field in the left column. If you wanted the opening to be exactly the same for each row, you would just enter the same value in every row. You can have every row be different, though, so the bottom line is that you can have it any way you want it.
Please let me know if you have any questions on this.
Lloyd
Mike,
The miter angle for a 48-segment ring is only 3.75 degrees if it is a closed ring. As soon as you add ANY gap, that angle will change, whether you measure the gap in degrees or percentage. If you were to use a 20% gap, it would be almost identical to a 2-degree gap.
The reason the angle changes is that in open segment rings, all edges point to the center of the vessel, including the edges of the gap. That means that you don't have a 48-segment ring, you have a 96-segment ring. 48 of them are filled with wood and 48 are filled with air. If the gap were 50%, the angle would be 1.875 degrees (half of your 3.75) The calculated angle in Woodturner PRO will show you how this changes as you vary the width of the gap.
One thing you can count on - ALL of the calculations shown by Woodturner PRO are guaranteed to be correct.
Lloyd
The miter angle for a 48-segment ring is only 3.75 degrees if it is a closed ring. As soon as you add ANY gap, that angle will change, whether you measure the gap in degrees or percentage. If you were to use a 20% gap, it would be almost identical to a 2-degree gap.
The reason the angle changes is that in open segment rings, all edges point to the center of the vessel, including the edges of the gap. That means that you don't have a 48-segment ring, you have a 96-segment ring. 48 of them are filled with wood and 48 are filled with air. If the gap were 50%, the angle would be 1.875 degrees (half of your 3.75) The calculated angle in Woodturner PRO will show you how this changes as you vary the width of the gap.
One thing you can count on - ALL of the calculations shown by Woodturner PRO are guaranteed to be correct.
Lloyd