On about 46" of length which is better lead screw or ball screw?
Also what diameter would be best?
Right now I have 1/2" dia acme screw and it whips alot at 75 ipm.
Could someone list the pros and cons of each?
On about 46" of length which is better lead screw or ball screw?
Also what diameter would be best?
Right now I have 1/2" dia acme screw and it whips alot at 75 ipm.
Could someone list the pros and cons of each?
Is your acme 1/2-10? if so, you might want to try 2 start 1/2-10, which would only turn half as fast. It will also only have 1/2 the torque, though.
If you're trying to eliminate the whipping, a ball screw or an acme with the same lead should'nt be much different. A ball screw is more efficient, though. But, you'll need to keep the dust from getting into the ball nut or you could have problems with it.
Gerry
UCCNC 2017 Screenset
http://www.thecncwoodworker.com/2017.html
Mach3 2010 Screenset
http://www.thecncwoodworker.com/2010.html
JointCAM - CNC Dovetails & Box Joints
http://www.g-forcecnc.com/jointcam.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
It is 1/2 - 10 with 1 start.
Mainly I was wanting to know which type of screw is stiffer.
Maybe a ballscrew a little, but not much. go to http://www.nookind.com and check out their catalogs. they have charts showing the max speed you can spin the screws before whipping occurs (critical speed).
Gerry
UCCNC 2017 Screenset
http://www.thecncwoodworker.com/2017.html
Mach3 2010 Screenset
http://www.thecncwoodworker.com/2010.html
JointCAM - CNC Dovetails & Box Joints
http://www.g-forcecnc.com/jointcam.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
To all,
I am designing a router with an effective working surface of the size of an A3 paper (2 x A4) and I do not know what size screw i have to take.
I find that there are many different "acme" (tapezium) screw types and sizes.
What leadscrew is needed?
If one has the oportunity to use a screw of tr10-2 oposed to tr14-2 and tr16-2
What would be the best choise?
Willy