Using a Diz to Draft Fibre from a Drum Carder

A personal take on finding what works

I’ve always found the idea of using a diz really appealing—taking a fluffy batt fresh off the drum carder and turning it into smooth, spin-ready roving. But in practice? I used to struggle with it. Drafting fibre off the drum with a traditional round-hole diz always felt fiddly, and I could never get it to flow as easily or consistently as I wanted.

That changed recently.

When I ordered my Brother drum carder from Wonky Weaver, I asked the owners if they could import the Brother diz with oblong slots rather than the usual small round holes and they did. I’d seen someone using one and it immediately struck me as more intuitive—something about the shape just seemed like it would guide the fibre more smoothly.

I’m not sure if it’s the diz or the new carder (or maybe both), but suddenly everything just clicked. Drafting off is not only easier, but incredibly clean and consistent. The fibre seems to glide through the diz in a way I never managed before.

A Few Things I’ve Learned

Here are a few tips and personal observations that have made a real difference for me:

• Oblong-slot diz: If you’ve struggled with round-hole versions, give one of these a try. It seems to allow for a more natural drafting motion and doesn’t snag or block up as easily.

• Quality of the batt matters: With my new carder, the batts are more evenly formed and hold together better during drafting. This has made a massive difference in how smoothly the fibre pulls through the diz.

• Less is more: One of the biggest game-changers for me has been resisting the urge to cram too much fibre onto the carder. I’ve found it’s much easier to diz off cleanly when I make a couple of thinner batts rather than one big dense one. The denser the batt, the harder it is to draft off smoothly and evenly—it starts to fight you.

Final Thoughts

If you’ve tried using a diz in the past and found it frustrating, it might not be you. The shape of the diz, the density of your batts, and the quality of the carding all play a part. With the right setup, it can be a really satisfying, practical way to prep your fibre—great for spinning, storage, or just keeping your stash tidy.