At the top of the Rhino Options dialog box there is annotation tab. The tab opens annotation scaling dialog box and dimensions dialog boxes. The annotation scaling dialog box changes model space text scale. The dimensions dialog boxes also change model space text scale. If the ‘Enable scaling of text, dimensions and leaders’ checkbox is checked, the text is big and there is no way to change its size. If the ‘Enable scaling of text, dimensions and leaders’ checkbox is not checked, the only way to change dimension text size in any detail is to zoom inside the detail. This is not practicable workaround because the zooming changes the scale of everything.
The Rhino help file mentions the annotation scaling dialog box. It says that “When disabled, text height is multiplied by the scale of the detail.” This claim is confusing. When I use Scale command or gumball to change the scale of the detail, the size of dimension text does not change, regardless of the setting of the ‘Enable scaling of text, dimensions and leaders’ variable.
Below the ‘Enable scaling of text, dimensions and leaders’ checkbox there is another checkbox named ‘Enable hatch scaling’. Rhino help file says that “When disabled, the pattern scale is multiplied by the scale of the detail.” This claim is also confusing. The only way to change the hatch scaling is to select the hatch in detail and to change its scale in Properties panel. The panel changes the scale of the hatch in all details, but the scale may be different in different details because it depends on the zooms in the details.