Greetings,
As requested we have now implemented a snapping function when hoisting parts into place.
By default this is turned off, so you need to engage it. Help prompts will tell you how, but by default the toggle key is R.
You can also turn this on and off in gameplay settings, as well as adjust the snap grid size. By default this is 0.1 meters.
Using this in conjunction with matching part sizes makes construction very easy. (i.e. if you work with a grid with 0.1 meter increments, use the same increments for your part sizes).
As always, questions or feedback is most welcome!
Best regards,
Daniel