Quote:
Originally Posted by asid61
I calculated that that cylinder only puts out about 1000lbs of force on 100psi. Were you planning on adding a lever arm or something, or is that enough to force a broach though?
I feel like I'm missing something. What's wring with just using the 1/2" shank on the bottom of the broach to keep it straight? Is that not good enough?
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Keeping broaches straight is something that is hard for students (and some mentors) to do without a fixture or jig. Over many year I have seen students kill tons of sprockets, gears & hubs due to a crooked broach). The thickness of the part you are broaching and the material plays a big part in this (the thicker the better).