“Setting up a new blade for a band saw is sometimes a hard job. But there could be help with Arduino power.
Setting the correct blade tension is not easy. The band saw is the Diva of saws! If tension is too small, the saw blade starts to flutter, the cut becomes unclean and requires additional grinding. If the tension is too high, this reduces the service life of the blade. What is left? Everytime try again and again until the right setting is found? A Google search gave hope. I am not alone with this issue. There is a whole host of tips for changing, aligning and tensioning a blade.
One most talked tip was to adjust the tension so that the blade sounds like a played “E” on a bass guitar. Crap - unfortunately I don’t have a bass guitar at home for a live trial (and air guitar won’t be enough). Luckily my daughter got a keyboard and I can listen to an “E”. Unfortunately, that didn’t help me at all. I’m probably not musical enough!
From technical point of view, the blade tension must ultimately be measurable. After another Google search, it was clear that this was true and that a good setting is between 250 – 300 N/mm². The right measuring device is unfortunately not a bargain. It costs about € 300! That is too much for me. These measuring devices work mechanically and presumably indicate a linear expansion. The housings are therefore made of metal and must be manufactured very precisely. There has to be another solution for me. So just somehow measure the force and evaluate it with a microcontroller?”