Clamps help you keep you workpieces attached to a table or several components attached to one another temporarily. The most common design is the carpentry screw clamp (also called C or G clamp).
(Carpentry screw clamp)
Here the pressing force is exercised by a screw shaft.
A single handed clamp is also quite common. In this case it is a clamping eccentric that produces the pressing force. Disadvantages of this tool are that you can exercise less force with it than with a screw clamp and it is almost only the edges that you can press with it. A great advantage, however, is that it is easy to work with. I have several of them myself.
(Single handed clamp)
Both clamps are manufactured in various lengths. In every case it is the size of the workpiece you can hold with the clamp that is indicated on the tool.
A band clamp may come in handy as well.
I have not bought one; I use a thick string instead of the band clamp. A thick string is advisable to use because thin strings may leave marks on the wood fibres at the edges.
(Workpiece held together)
Whichever clamps you use, you must be careful with them. If you pull them too tight, if the clamps are damaged or if there is some waste stuck on them, they might leave marks on the workpiece. If you have damaged clamps, repair the damage or use them with pads (attached either to the clamp or to the workpiece). If an indentation is caused on the wood nevertheless, you can repair it by wet sanding. Apply some water to the identation in the wood surface and while drying, the structure of the wood will nicely recover.
Try to press together all standing apart parts.
(Standing apart parts)
(Clamping using wooden pads)
(Clamp with pads)
In the case of some objects, gluing the parts can be performed in several steps only.