Three tricks that come in handy in this kind of situation:
- If you select a part before adding the new part, the new part will use previously selected part orientation. This will work here, select the blue angled beam before adding the white one. The white beam will have the right orientation and you'll just have to use snapping to place it exactly on pins.
- Use relative grid: in the previous case, default orientation of parts could result in the need of rotating the added part by 90° in the local orientation of the part. pressing "o" with the part selected will allow to do that (see http://www.melkert.net/LDCad/docs/basicEdit, "building at angles" section).
- If none of these tricks are enough, then rely on LDCad angle measurements and triangle closure tool. (see http://www.melkert.net/LDCad/docs/advEdit, "shock absorber section" and LDCad Youtube videos).
As a general rule, I never use fine moves and visual placement when doing a model, except when the model relies on flexiblility of parts, forcing me to distribute the error to compensate.
- If you select a part before adding the new part, the new part will use previously selected part orientation. This will work here, select the blue angled beam before adding the white one. The white beam will have the right orientation and you'll just have to use snapping to place it exactly on pins.
- Use relative grid: in the previous case, default orientation of parts could result in the need of rotating the added part by 90° in the local orientation of the part. pressing "o" with the part selected will allow to do that (see http://www.melkert.net/LDCad/docs/basicEdit, "building at angles" section).
- If none of these tricks are enough, then rely on LDCad angle measurements and triangle closure tool. (see http://www.melkert.net/LDCad/docs/advEdit, "shock absorber section" and LDCad Youtube videos).
As a general rule, I never use fine moves and visual placement when doing a model, except when the model relies on flexiblility of parts, forcing me to distribute the error to compensate.