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One of the main problems we faced during the project was that the follower was not able to show smooth riding when the radius of the helical cam increases abruptly. We resolved this issue by adding the spring to the system so that the follower is able to overcome the abrupt changes in increment of radius. Although this issue was solved, we faced other issue that while the follower followed the path of sudden decrease in radius of the helical cam, it did not to touch the track on the helical cam due to the presence of the spring. Our team dealt with this problem by manually tuning the condition of the spring but there's still tiny space from the track that affects our accurate drawing result. Our future work would be to come up with the additional system or way that can replace this fine-tuning work, guaranteeing the smooth following and an accurate drawing result.
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