No, it is not difficult to assemble a yarn swift. Most of the units present in the market have a straightforward assembly that takes a few minutes. This is not to say that all units are easy to set up. Some of the models available in the market have complex setups and may take a bit more time to get the unit ready for use. Luckily, manufacturers provide instructions to guide users on how to set up the units they produce. Sticking to the steps available in the manual makes the process a sail through, and the assembly will take lesser time. Contacting the customer support when you face any challenges with assembly is advisable to avoid causing damage to the swift.