antman
18th September 2003, 01:08 PM
Hi all,
I am having a few problems getting the correct insert for a VM100 chuck I have purchased for my Carba-tec MC900 lathe.
The lathe is supposed to have a M30 X 3.5 thread but the vicmarc M30 insert does not fit. It starts to thread on but it gets tight after approx 1.5 turns. It has a similar feeling to using an imperial bolt in a metric hole. The thread measures at 30mm dia and 3.5 mm between threads (pitch?) so the insert should be correct. As far as I can measure the thread is 3.5 wide in the insert but this is only an approximate measurement.
Carba-tec have been helpful by sending up another M30 insert and a 1 1/8 X 8 insert but none fit.
Has anybody else experienced this? Is there another thread that is an M30 X something? The face plate supplied with the lathe fits easily but it has no markings so it could have any thread.
Any suggestions?
Thanks in advance,
Anthony
I am having a few problems getting the correct insert for a VM100 chuck I have purchased for my Carba-tec MC900 lathe.
The lathe is supposed to have a M30 X 3.5 thread but the vicmarc M30 insert does not fit. It starts to thread on but it gets tight after approx 1.5 turns. It has a similar feeling to using an imperial bolt in a metric hole. The thread measures at 30mm dia and 3.5 mm between threads (pitch?) so the insert should be correct. As far as I can measure the thread is 3.5 wide in the insert but this is only an approximate measurement.
Carba-tec have been helpful by sending up another M30 insert and a 1 1/8 X 8 insert but none fit.
Has anybody else experienced this? Is there another thread that is an M30 X something? The face plate supplied with the lathe fits easily but it has no markings so it could have any thread.
Any suggestions?
Thanks in advance,
Anthony