How straight must the threaded studding be?

Hello all

After about a month of research and gathering materials (still need some..) I am in the process of eventually dirtying my hands.

First step is cutting the M8 threaded studding. Unfortunately it was sent simply wrapped so has some slight bend to it. Between 1mm and 3mm over the 1m lengths.

Is this a problem?

I anticipate it should not be too much of a problem as it is used for the frame. I intend to use the straightest bit for the lead screws...

Any advice or pitfalls I can expect?

Thanks

Hi

Since you cut to smaller lengths, a 1-3 mm even bend across 1 meter would only result in ~0.3-1 mm bend on most of the final lengths, which should be no problem.

The lead screws only have bearings at the bottom so should tolerate a little wobble and the z-bars should stop the wobble being transferred the carriage.

BZP is notorious for being bent so I used A2 stainless for the lead screws and the bars and BZP for the frame. I got them from Farnell and they were all very straight, even the BZP.

---

[www.hydraraptor.blogspot.com]