- Joined
- Nov 27, 2012
- Messages
- 7,863
I agree with Tim, that's a bolt on chuck in my book. Anything that requires the removal of a fastener, whether it be a bolt or a nut, to remove the chuck & adapter is bolt on. In the case of the 1127-VF, you have to unscrew nuts from the studs to remove the chuck. On a camlock, you simply turn the cam to release the pins. No removal of fasteners needed.
This type of chuck mounting is common on asian import mini lathes. IIRC there's also another type that is similar where you only have to loosen the nuts or bolts, rotate, & the nuts or bolts will pass through a clearance hole on the spindle. I could be mistaken but I think I've seen it before.
I went through this very same decision years ago. I had purchased a PM1127VF in 2009, not the LB model as it did not exist at that time. The 1127VF (non LB) had a different spindle type, it was DIN55021. Basically the same as it is now for fastening but it had a nose taper on the spindle. The nose taper is better for accuracy/repeatability but made making additional adapters a lot more work. The LB does not have the nose taper so making backplates for it is pretty simple. The spindle type & other factors made me change my mind & get a PM1236 instead as I could not afford the PM1340T (not GT) or the PM1440HD at the time. Very glad I did go with the PM1236 instead.
This PM1228VF-LB looks like it may become a popular model IMO
This type of chuck mounting is common on asian import mini lathes. IIRC there's also another type that is similar where you only have to loosen the nuts or bolts, rotate, & the nuts or bolts will pass through a clearance hole on the spindle. I could be mistaken but I think I've seen it before.
I went through this very same decision years ago. I had purchased a PM1127VF in 2009, not the LB model as it did not exist at that time. The 1127VF (non LB) had a different spindle type, it was DIN55021. Basically the same as it is now for fastening but it had a nose taper on the spindle. The nose taper is better for accuracy/repeatability but made making additional adapters a lot more work. The LB does not have the nose taper so making backplates for it is pretty simple. The spindle type & other factors made me change my mind & get a PM1236 instead as I could not afford the PM1340T (not GT) or the PM1440HD at the time. Very glad I did go with the PM1236 instead.
This PM1228VF-LB looks like it may become a popular model IMO