- Joined
- Nov 10, 2013
- Messages
- 376
Howdy from New Mexico!!! I've been a member for a while do a lot of lurking only posted a few times. I've decided to do a VFD upgrade on G4016 lathe. with the hopes of getting better results and not as much stress while threading to a shoulder also maybe some cleaner threads by going from single to 3 phase. So naturally I've a few questions that i haven't been able to find by searching or I didn't want to bump an old thread wanting to get more in depth.
• gear changing, I thread at my lowest speed (70 rpm) 90% of the time. I'm almost always Threading up to a shoulder. Say if I want 30 rpm would I set the speed at 70 and adjust with the VFD from there? I've read a few places where guy just leave their lathes at say 700 rpm because that's the fastest they usually turn their machines and leave it in one speed. That seems to me like it would would or could cause excessive wear on that particular gear set. My thoughts are to switch gears to get to the closest rpm range that I can a fine tune it from there to hopefully get more gear life.
• dynamic braking and ramp start, I picked up a brake resistor for my drive. I've read where guys install them and like using them and I've read where guys think they tear stuff up due to back lash. I'm sure I will end up play around with the settings but I was thinking maybe a stop it on a 3-4 second curve and maybe at 5-10 second start?
•this is a little off subject and I know I could have done some research but if I'm posting I might as well ask. I'm installing a coolant system. I'm coping a diy I found on YouTube 5 gallon bucket and fish pump. some of y'all might have seen it. My question is what are y'all using as far as water soluble oil? I did a bit of research on this and pick up what had the best reviews on amazon, Sta-lube anti corrosive soluble oil it's a CRC company I've used a lot of their products and like what I've used. I'm not opposed to using something better. Also I was wondering if y'all are using anything to keep the water from getting funky and nasty I've seen where people are using chlorine tablets I can not see where that can be good at all I've also seen where guys don't use anything at all. I was thinking maybe a UV light like they use in hot tubs. Am I wasting my time worrying about this?
Thank you in advance
Dennis
• gear changing, I thread at my lowest speed (70 rpm) 90% of the time. I'm almost always Threading up to a shoulder. Say if I want 30 rpm would I set the speed at 70 and adjust with the VFD from there? I've read a few places where guy just leave their lathes at say 700 rpm because that's the fastest they usually turn their machines and leave it in one speed. That seems to me like it would would or could cause excessive wear on that particular gear set. My thoughts are to switch gears to get to the closest rpm range that I can a fine tune it from there to hopefully get more gear life.
• dynamic braking and ramp start, I picked up a brake resistor for my drive. I've read where guys install them and like using them and I've read where guys think they tear stuff up due to back lash. I'm sure I will end up play around with the settings but I was thinking maybe a stop it on a 3-4 second curve and maybe at 5-10 second start?
•this is a little off subject and I know I could have done some research but if I'm posting I might as well ask. I'm installing a coolant system. I'm coping a diy I found on YouTube 5 gallon bucket and fish pump. some of y'all might have seen it. My question is what are y'all using as far as water soluble oil? I did a bit of research on this and pick up what had the best reviews on amazon, Sta-lube anti corrosive soluble oil it's a CRC company I've used a lot of their products and like what I've used. I'm not opposed to using something better. Also I was wondering if y'all are using anything to keep the water from getting funky and nasty I've seen where people are using chlorine tablets I can not see where that can be good at all I've also seen where guys don't use anything at all. I was thinking maybe a UV light like they use in hot tubs. Am I wasting my time worrying about this?
Thank you in advance
Dennis