Warco WM18 lead screws upgrade

[Enough!Participant @enough]

i have re thought thing and am still thinking about a ball lead screw for the Z axis. The would mainly to make the up/down of the head easier

We-e-ell … see previous comments about back-driving with ballscrews.

[petro1headParticipant @petro1head]

Posted by Bandersnatch on 12/01/2020 16:48:05:

i have re thought thing and am still thinking about a ball lead screw for the Z axis. The would mainly to make the up/down of the head easier

We-e-ell … see previous comments about back-driving with ballscrews.

Ah, had missed that

so anthing better than the std warco setup

[not done it yetParticipant @notdoneityet]

90 degrees now, so question might be how much when you got it? (and was it new?). 360 degrees will be point of failure.

[Enough!Participant @enough]

Posted by petro1head on 12/01/2020 18:12:57:

Posted by Bandersnatch on 12/01/2020 16:48:05:

i have re thought thing and am still thinking about a ball lead screw for the Z axis. The would mainly to make the up/down of the head easier

We-e-ell … see previous comments about back-driving with ballscrews.

Ah, had missed that

Previously we were discussing ballscrews in relation to the X and Y axes. Here you had moved on to the Z-axis. If the ballscrews back-drive on the Z-axis, the head will sink down the column any time the head isn't locked (or held on the raise/lower handle)

Mostly, people mill with the head locked so it might be possible to work this way. Whether it's worth it though …..

[petro1headParticipant @petro1head]

Ok guys sorry.

since the orginional post i did a full check and adjustment of the x and y axis and they are now much better so decided not to pursue ball screws.

i am looking at the z axis not from a back lash point of view rather for smoothness and less friction and now understand drawback to ball screws hence why i asked if there was anything better than that std warco setup

Edited By petro1head on 12/01/2020 19:06:22

[Enough!Participant @enough]

Posted by petro1head on 12/01/2020 18:58:06:

i am looking at the z axis not from a back lash point of view rather for smoothness and less friction

People have done this with a cable/pulley counterbalance system. With the counterbalance weight suspended behind the machine.

Or a gas strut helps.

[petro1headParticipant @petro1head]

Posted by Bandersnatch on 12/01/2020 19:04:21:

Posted by petro1head on 12/01/2020 18:58:06:

i am looking at the z axis not from a back lash point of view rather for smoothness and less friction

 

People have done this with a cable/pulley counterbalance system. With the counterbalance weight suspended behind the machine.

Or a gas strut helps.

Mine already has a gas strut inside the column. Its more the help the stepper motor

Edited By petro1head on 12/01/2020 19:08:18

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