Re: Bumblebee 300x300x150mm
Thank you. This machine was made as hobby, for my shop. i was made it about 6 month with including time for study and experiments with best mix for me. And this one compare all my expectations - really rigid frame and heavy. Base net weight about 80 kg gantry about 60. i was instal stepper temporary but now installed servos. i want do replace all aluminum pats for cast iron and steel and install more powerful spindle. Maximum feed is 7200 mm/min (limited by soft) no need higher. acceleration for tests 5m/s2, but this acceleration made scary cabinet shaking so i decrease it for 2.5m/s2. there is some videos https://www.youtube.com/watch?v=N0_XCOdPGg8 Thank you
Re: Bumblebee 300x300x150mm
Quote:
Originally Posted by
smlua
Thank you. This machine was made as hobby, for my shop. i was made it about 6 month with including time for study and experiments with best mix for me. And this one compare all my expectations - really rigid frame and heavy. Base net weight about 80 kg gantry about 60. i was instal stepper temporary but now installed servos. i want do replace all aluminum pats for cast iron and steel and install more powerful spindle. Maximum feed is 7200 mm/min (limited by soft) no need higher. acceleration for tests 5m/s2, but this acceleration made scary cabinet shaking so i decrease it for 2.5m/s2. there is some videos
https://www.youtube.com/watch?v=N0_XCOdPGg8 Thank you
Why did you decide to replace the steppers with servos?
Re: Bumblebee 300x300x150mm
Re: Bumblebee 300x300x150mm
Hi Smlua - Whats your feed and speed rates? or chipload? very nice. Peter
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Re: Bumblebee 300x300x150mm
im trying to write it in description in youtube clips. Usually im trying to keep 0.06-0.08mm/t. And now all aluminum parts replaced for cast iron https://www.cnczone.com/forums/attac...d=418146&stc=1
Re: Bumblebee 300x300x150mm
Hi. and little video - trying 5$ endmill from local grinding shop https://youtu.be/grtFrsHFmGU