Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: studysession on February 06, 2011, 05:52:37 PM

Title: Screw whip help needed (8020 2x3 machine)
Post by: studysession on February 06, 2011, 05:52:37 PM

I have the FLA100 kit from
Store: FLA100-00 : Fine Line Automation (http://www.finelineautomation.com/store/show_by_tag?tag=FLA100-00)

The x-axis seems to get some whipping with the screw rod. Not sure what I did wrong and how to stop it. I would appreciate any help on this problem.

Thanks

Title: Re: Screw whip help needed (8020 2x3 machine)
Post by: rrc1962 on February 06, 2011, 09:03:32 PM

If it's whipping, the RPM is too fast.  Slow it down.  If your speed is not fast enough after slowing to where you get no whipping, you'll have to go to a courser screw pitch...or a screw with multiple starts.

Title: Re: Screw whip help needed (8020 2x3 machine)
Post by: Jeff_Birt on February 07, 2011, 09:49:29 AM

First check the screw by taking it out and rolling it across a flat table. If the screw flops around there it is a sign that it was not straightened after grinding. If the screw is not straight there is not much you can do to help except straighten it. Even with a relatively straight screw, if it is only supported on one end, you'll be limited to how fast you can turn it. Supporting the screw on both ends, under a bit of tension, will help keep it from whipping.

Title: Re: Screw whip help needed (8020 2x3 machine)
Post by: studysession on February 07, 2011, 07:42:52 PM

Thanks for the replies -

It is supported at both ends. If I hold my finger against the top of it while it turns, there is no flopping around. I will pull it off this weekend.