Very helpfull video, I have just bought a Emco/Unimat PC basic lathe & mill ( early cnc ) and I had the same trouble parting of steel lots of judder and jaming up, time to invest in good quality parting off tool, as for a coolent pump Iam looking at the possabilty of using a power head pump with a filter, the type of submersable pump used in fish tanks...low voltage but with a high rate of flow
I been having a lot of difficulty parting off on my Sieg C4 lathe, which looks pretty similar to yours. I was starting to loose hope of having much success, even after tooling up with some decent indexable cutters.
After watching this, i just parted off some 32mm stainless bar at 100rpm. I had no idea i needed to go so slow.
I did 303 stainless steel on my chester today holly *** I tightened everything centered the work closest to the chuck as possible and holly *** it was very hard to find the right feed/speed to cutt it. I am using a standard HSS blade and holder not indexed like your using. Your not joking when you say chatter on smaller lathes lol
Nice to see someone using coolant. Why so many vids here show dry cutting on steel evades me. Full on deep cuts with TC on a full size lathe maybe, but these little chaps need the help coolant gives.
I use Castrol Cooledge, ace stuff!
Btw mafosa!, it can help to increase the speed as the cut deepens, the idea is that the 'cutting speed', the rate the material passes the tool balanced with the feed rate, is kept constant. When right you can achieve a finish cut surface from a part off.
thanks for taking the time to do this. this helped a great deal. when i was parting on my 9x20 i was going way to fast. you showed the difference in speeds. i ran out the the garage and tried a slower speed, ans sure enough bingo!. thanks again
Larry you are welcome,there are very few parting off video's
I did this to help a small group of people,look at the use of coolant it helps with steel,even a small fairy liquid bottle dripping on to the tool/job will make a big difference in the cut,
paraffin for aluminium / brass, cast iron would be used dry
stick some coolant on it, it helps
smk11111 2 months ago
yes its better when you have a 25hp motor
the biggest problem is the motor tries to compensate for a heavy cut then runs out
of power so causing chattering, slowing the motor helps a great deal.
antopia 2 months ago
i take it it hasnt got enough umph
MrBurnTec 2 months ago
Very helpfull video, I have just bought a Emco/Unimat PC basic lathe & mill ( early cnc ) and I had the same trouble parting of steel lots of judder and jaming up, time to invest in good quality parting off tool, as for a coolent pump Iam looking at the possabilty of using a power head pump with a filter, the type of submersable pump used in fish tanks...low voltage but with a high rate of flow
NIGHTWATCHERUK01 10 months ago
Thanks so much for posting this video.
I been having a lot of difficulty parting off on my Sieg C4 lathe, which looks pretty similar to yours. I was starting to loose hope of having much success, even after tooling up with some decent indexable cutters.
After watching this, i just parted off some 32mm stainless bar at 100rpm. I had no idea i needed to go so slow.
trevthebusdriver 1 year ago
I did 303 stainless steel on my chester today holly *** I tightened everything centered the work closest to the chuck as possible and holly *** it was very hard to find the right feed/speed to cutt it. I am using a standard HSS blade and holder not indexed like your using. Your not joking when you say chatter on smaller lathes lol
fireicer 1 year ago
please show a vid of your cooling system, how it's set up, where to buy, how much, etc. Nice vid btw, and thanks !
fgleich 2 years ago
its home made from an old 3 phase suds pump off a lathe,
motor was burnt out so I just replaced it with a 240volt one
I used 2 home made pulleys and an old round hoover belt!
you only need a small amount of coolant.
antopia 2 years ago
Nice to see someone using coolant. Why so many vids here show dry cutting on steel evades me. Full on deep cuts with TC on a full size lathe maybe, but these little chaps need the help coolant gives.
I use Castrol Cooledge, ace stuff!
Btw mafosa!, it can help to increase the speed as the cut deepens, the idea is that the 'cutting speed', the rate the material passes the tool balanced with the feed rate, is kept constant. When right you can achieve a finish cut surface from a part off.
Jes437 2 years ago
thanks for taking the time to do this. this helped a great deal. when i was parting on my 9x20 i was going way to fast. you showed the difference in speeds. i ran out the the garage and tried a slower speed, ans sure enough bingo!. thanks again
larry
mafosa1 2 years ago
Larry you are welcome,there are very few parting off video's
I did this to help a small group of people,look at the use of coolant it helps with steel,even a small fairy liquid bottle dripping on to the tool/job will make a big difference in the cut,
paraffin for aluminium / brass, cast iron would be used dry
antopia 2 years ago
material is en8 steel, yes you would use low speed as the lathe would not take high speed its just to small.
antopia 2 years ago
hey .what the material is?
and i see that you use low speed to cut off
why you did not useing high speed
sfa7al7ob93 2 years ago