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usage:howto [2020/05/02 22:05] – [How to add radius circle tangent to two lines ?] dellus | usage:howto [2020/09/08 21:27] – 'fake' circular dimension jack_sprat | ||
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Let's say, we want to create a special part as shown below. Note that there are 2 layers, one for the part (yellow) and one for its axis (red). {{usage: | Let's say, we want to create a special part as shown below. Note that there are 2 layers, one for the part (yellow) and one for its axis (red). {{usage: | ||
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==== Step 1: create a block ==== | ==== Step 1: create a block ==== | ||
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{{usage: | {{usage: | ||
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===== How to convert from mm to inches ? ===== | ===== How to convert from mm to inches ? ===== | ||
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Then to scale from mm to inches: | Then to scale from mm to inches: | ||
- | 1. Select all, by command (Tools - Select - Select All), or by pulling up a window around it. | + | - Select all, by command (Tools - Select - Select All), or by pulling up a window around it. |
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- | 2. Scale (Tools - Modify - Scale) | + | |
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- | 3. Specify reference point, normally best 0,0. Enter. | + | |
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- | 4. In the Scaling Options: | + | |
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To adapt the Drawing Preferences to inches: | To adapt the Drawing Preferences to inches: | ||
- | 5. Set Main Units: | + | - Set Main Units:\\ {{: |
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- | 6. Adapt Dimensions. You could do it with General Scale 1/25.4, but better let it at 1 for possible later print scaling and change the size values individually. You can later use these settings for all your inches drawings. | + | |
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- | + | ===== How to ' | |
+ | In essence, we use one of the existing dimension tools, and then manually edit the label. | ||
+ | This really only works convincingly on segments of circles, although the approach could be applied to a continuous string of line entities, at a push. | ||
+ | **Step-by-step example:** | ||
+ | - draw a circle, centred on a grid point (**Circle: Center, Point** tool) | ||
+ | - draw two lines, from centre to perimeter, to define a segment (**Line: 2 Points** tool) | ||
+ | - divide the circle at the two lines, to create an arc (two, actually) (Modify: Divide tool) | ||
+ | - select the arc to find its length in the status bar | ||
+ | - create an angular dimension annotation between the two lines (**Dimension: | ||
+ | - edit the dimension properties, defining a new label with the length of the arc (**Modify: Properties** tool) | ||
- | And save it under a new name of course. | + | {{ : |
+ | **Hint:** you can find the centre of an arc with the **Dimension: | ||