Re: T5 pulley
Posted: Sun Apr 28, 2013 7:05 am
Dan:
I havent run enough testing to say for sure. What I suspect is its a matter of the printer itself and the current calibration of that printer. Since HTD's are soooo sensitive ( any small timing belt pulley really..), Im thinking the same cal factor will work on all models until you recalibrate a printer. I printed 3 to find that scale %. I suspect its good for only my machine, numbers will vary between units. Once you know it, I think you can then just use that scaling value in future. I'll know that after a few dozen more. :)
Since Im pretty sure the stl's are accurate to several decimal points, Im getting pretty confident that the scaling is the way to ensure your printer will do a good gear. Get a timing pulley to work and you'll KNOW your printer is now cal'ed for gears. That linear accumulation of error is a great way to test for that, if a pulley fits a belt, you have figured out your machine. Smaller the belt, the tighter your calibration is..
My printer just failed me twice today.. seems noise or something as the platform just dropped to the bottom , but after about 50 models, thats not a bad failure rate. Think Ill make a servo driven one that a bit more robust.. :)
Art
I havent run enough testing to say for sure. What I suspect is its a matter of the printer itself and the current calibration of that printer. Since HTD's are soooo sensitive ( any small timing belt pulley really..), Im thinking the same cal factor will work on all models until you recalibrate a printer. I printed 3 to find that scale %. I suspect its good for only my machine, numbers will vary between units. Once you know it, I think you can then just use that scaling value in future. I'll know that after a few dozen more. :)
Since Im pretty sure the stl's are accurate to several decimal points, Im getting pretty confident that the scaling is the way to ensure your printer will do a good gear. Get a timing pulley to work and you'll KNOW your printer is now cal'ed for gears. That linear accumulation of error is a great way to test for that, if a pulley fits a belt, you have figured out your machine. Smaller the belt, the tighter your calibration is..
My printer just failed me twice today.. seems noise or something as the platform just dropped to the bottom , but after about 50 models, thats not a bad failure rate. Think Ill make a servo driven one that a bit more robust.. :)
Art