Straight Rod - 8mm

$7.00 - $30.00

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Length *

Free shipping in Canada for orders over $140 before tax. (via Canada Post)

Steel rod, 8mm:

  • Length: Selected by customer +/- 1mm
  • Chrome plated
  • 45# steel material
  • F7 Tolerance
  • Hardness: 58-62 degree 

320mm and 380mm fit the Wanhao DUplicator i3.

We are unable to guarantee the straightness of any rods over 1000mm.

Buy 8mm straight steel rods in Canada without the surprise cost of the exchange rate!



5 out of 5 (based on 13 ratings)
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8mm rod

Excellent quality and speedy delivery
Posted by Frank van Biesen, May 05, 2021

Good ...ish

The rod that I have is not within its declared tolerance. My measurements show anywhere between 7.20mm and 7.55mm. And yes, it is not exactly circular, one end shows 7.22 and 7.45 at diametrically opposite directions. Other that that, it is smooth, hard and stiff enough to make it usable. Pretty good for this price,
Posted by Andrei Telitsyn, March 12, 2021

You get what you pay for

Upon inspection they appear to be toleranced to 0.005" runout. Considering print beds are calibrated to a piece of paper or 0.004" this is mediocre. Recommend spending money on better shafts.
Posted by AF, June 13, 2020

Straight rod 300mm

In a world somewhat full of complaints about the straightness of these rods, Spool3D supplied excellent (straight) rods which I picked up from their location (so no comment available on shipped material). Excellent service, as always.
Posted by Geof Bishop, June 08, 2020

Lack of precision

I ordered 6 8mm rods in different lenghts, and all of them were slighty bent, wich made then unusable for my machine. 2 of them also had a bit bigger diameter wich caused a lot of friction in the linear bearings.
Posted by Antoine, March 30, 2020

Rod 8mm

I ordered the rods 8mm 400mm, 450mm and 500mm for my DIY 3D printer. It was well packed. The rods are perfect and the good quality. I recommend the rods from SPOOL3D.
Posted by Davy Fraser, February 17, 2020

Excellent rods

This fixed my printer, the rods are really well packed and straight as an arrow. Will buy again here if I ever need them again (hopefully not tho!).
Posted by Frank Lemay, January 21, 2020


Bon ,produit difficile de le couper !
Posted by Yvon, April 08, 2019

Excellent quality rod

Bought a couple different lengths of this stuff, 320mm and 370mm for a scratch built i3 variant, they're really straight and basically indestructible for practical purposes.
Posted by Edward Simpson, November 05, 2018