Because you want to repair a broken rod, shorten a rod you already own, transform a single-strand rod into a 2-strand rod to integrate a spigot, or because the blank you covet for all its intrinsic qualities is a few centimetres too long... So many good reasons to recut your blank.
Doing this operation properly is child's play, for which you'll need :
- painter's tape
- sandpaper
- white pencil (optional)
- a Dremel (mini electric saw) or hacksaw
- 5 minutes of available time...
Step 1

Note the measurement with your white pencil where you want to cut your blank.
Step 2

Mark out the cutting area with painter's tape. This will serve as a reference to help you cut the blank straight. Ideally, you should use gravity to ensure that your tape is parallel to the blank's cross-section.
Step 3

Make a few turns to create a thickness that serves as a guide. You can even do the same thing on either side of the area you wish to cut to create a "throat".
Step 4

Set the Dremel to low speed or take your hacksaw.
Step 5

Cut along the painter's tape, so that the cut is clean and parallel to the blank section (or perpendicular, depending on how you look at it...).
The cut is now complete.
Step 6

Sand (flat) the cut part so that it is clean and no carbon fibers protrude.
Final rendering

And that's it, the job's done and your blank is the length you want!
As you can see, shortening a blank is child's play. So if you've got a blank in your sights and it doesn't have exactly the characteristics you want, a trim is a quick and easy operation.

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