warp and weft

[ericheartsu]

I'm currently building some m3s, and also working on some m6s for another part of the shop, and i'm having a hard time getting equal metering, between the two positions.

For my m3's i'm doing them on my roller master, but it's an older one. some frames, no problem, i can get it within two newtons, if not dead the same. But for other frames, i'm getting readings that can be as high as 10 newtons off!

The m6's i'm doing by hand, but i'm still getting upwards to 6 newtons off.

How do i correct this?

thanks!

[ericheartsu]

also, is this title even the appropriate words for this?

[Ryan]

I'm no screen genius but can't just add more tension to the side that is reading off?

[Admiral]

Are the frames moving freely on the roller master? You might need some anti-seize lubricant I forget what it is but it was something like c5a.  Increasing one direction still increases the other so you have to approach it a bit slow and carefully and keep checking the tension in each direction.

Dunno what else to tell you I have never had this issue...

[ScreenFoo]

As far as the table goes, sounds like gunked up corners to me, but I'm not up on the in's and out's of those things...
Are you not using the meter while hand stretching to ensure you're hitting the same tension in both warp/weft directions?

If you slip up mesh and then stretch each roller to a certain corner mark by hand, you're nearly guaranteed to have two very different readings in those two directions.
Warp elongates somewhere around 40% more than weft in most meshes.

[ebscreen]

As long as all the rollers are turning an equal amount, then your issue lies with
inserting the mesh evenly.

[ZooCity]

You could actually be barking up the right tree in the title.  Do everything suggested first and see if that works.  To elaborate on eb's suggestion, you may need to compensate for weft v. warp elongation when you load the mesh before stretching.  Be sure to load the same direction from your bolt of mesh every time, just in case.

Sounds like one of the cylinders might be weak or not getting enough air to compensate for the frame shape though.