simat 101 backgear

This topic has 11 replies, 9 voices, and was last updated 23 November 2015 at 04:20 by Roderick Jenkins.

Viewing 12 posts - 1 through 12 (of 12 total)

Author

Posts
27 October 2012 at 16:41 #102024
Brian T
Participant
@briant
Can anyone tell me how to make the backgear on this lathe do more then lock the spindle up and what is the thread on the spindle the one that holds the chuck on?

Thanks for your help

Brian T
Advert

27 October 2012 at 16:41 #6405
Brian T
Participant
@briant
19 December 2012 at 09:45 #106733
Gra
Participant
@gra
Hi Brian,

If you look at one of the centre pulleys on the headstock, there is a small grub screw, loosen this with an allen key and then engage the backgear by bringing the lever and gears forward towards you. This will give you a 4:1 reduction ratio on any speed depending on the pulleys used. Remember to tighten the grub screw back up though when you have finished using the back gear!

Hope this helps.

Regards,

Gra
19 December 2012 at 10:51 #106739
Jim Guthrie
Participant
@jimguthrie82658
Posted by Gra on 19/12/2012 09:45:11:

Hi Brian,

If you look at one of the centre pulleys on the headstock, there is a small grub screw, loosen this with an allen key and then engage the backgear by bringing the lever and gears forward towards you. This will give you a 4:1 reduction ratio on any speed depending on the pulleys used. Remember to tighten the grub screw back up though when you have finished using the back gear!

And don't forget a spot of oil on the pulley/spindle interface to avoid problems, especially if you are going to do a lot of backgear work.

Jim.
19 December 2012 at 11:53 #106742
David Bryant
Participant
@davidbryant53737
Hi Brian,

the spindle nose thread on mine is M14x1.5, but my one may not be an original spindle.

When using backgear, I completely remove the grub screw, place a few drips of oil down the hole, then use the grub screw to block up the hole again and keep the oil in (but don't do it up tight as that will lock the pulley to the shaft).

David
22 November 2015 at 14:44 #213606
Mark P.
Participant
@markp
Can any Simat 101 or flexispeed owners point me in the direction of a tailstock drill chuck arbour please.
Mark P.
22 November 2015 at 15:05 #213607
James A
Participant
@jamesalford67616
Brian,

My Flexispeed Meteor II has a 1/2" BSF spindle thread. I cannot help with the tailstock drill chuck arbour, though. The shortened 0 morse fittings seem to be like gold dust.

Regards,

JAmes.
22 November 2015 at 16:30 #213612
David Clark 13
Participant
@davidclark13
Tailstock chuck arbor from EBay. 0 morse taper but will probably need shorting. Might need to undercut the arbor thread to screw drill chuck fully on. Cowells do a replacement headstock mandrel for their lathe (M14 X 1) but I am not sure how compatable it is with a Simat.

Edited By David Clark 1 on 22/11/2015 16:30:43
22 November 2015 at 17:55 #213627
Mark P.
Participant
@markp
David, I had a look at Cowells website and scared myself at their prices. I think that I will bite the bullet and turn up my own.
Thanks. Mark P.
22 November 2015 at 18:19 #213635
john carruthers
Participant
@johncarruthers46255
I have a scan of the Flexispeed Meteor II (aka Simat 101) handbook if you'd like a copy?

I've uploaded the images to my album, Flexispeed Meteor II,
Page 3 covers the back gear etc.

Edited By john carruthers on 22/11/2015 18:27:32
22 November 2015 at 18:29 #213636
Mark P.
Participant
@markp
Ooo, yes please John that would be very good of you.
Mark P.
23 November 2015 at 04:20 #213683
Roderick Jenkins
Participant
@roderickjenkins93242
Posted by David Clark 1 on 22/11/2015 16:30:07:

Tailstock chuck arbor from EBay. 0 morse taper but will probably need shorting. Might need to undercut the arbor thread…

Sadly, these lathes use the small end of the 0MT, so the arbor thread is the bit you throw away

Rod
Author

Posts