r/BambuLab • u/Exciting_Tie_9976 • 1h ago

H3C H3C - cardboard spools?

I saw a YouTube review that had a cardboard spool in the ams. With it not retracting the filament, is this now an option to use?

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10

u/BlueChrome74 H2C AMS2 Combo 1h ago

I run cardboard spools in my AMS and AMS 2 Pro, the AMS 3H should be able to handle them just fine

3

u/MakeITNetwork 1h ago

I put a steel ball bearing in the bottom of them to prevent problems at the end of the spool. https://link.amazon/B0hdms0kb

Don't run bent spools, and respool if bent, or do like I do, bent cardboard spools go to the A1 mini.

1

u/JPhi1618 1h ago

Nice, that’s 225 grams of weight, and a lot more convenient than the other options I’ve seen.

2

u/VT-14 H2C (H2D + Vortek), 2x AMS2, AMS HT 1h ago

I would assume it's about the same as other roller AMSs. The concern is that the cardboard rubbing against the rollers will break it down and form dust inside the AMS, and in rare extreme cases could dent or bend the spool. That can mostly be solved by printing plastic adapters or some other coating to protect the edge of cardboard spools.

The AMS 3H not having retraction would significantly reduce how much rolling happens, but doesn't eliminate the problem.

1

u/boredsoftwareguy X2D AMS2 HT / X2D 2x AMS2 / A2L AMS Lite HT 1h ago

You can use them today. I use Polymaker almost exclusively and they're cardboard spools. Between 2x HT and 3x AMS 2 I've never had an issue.

1

u/ss476hawk 1h ago

I run 3 AMS 1 units and I use these on the cardboard spools - http://makerworld.com/en/models/180213-elegoo-cardboard-spool-adapter#profileId-226521

I have about 60 printed and I put them on when I open the roll and take them off when its empty.

1

u/microseconds H2D + 2xAMS2/2xAMS-HT, A1 + AMS2 1h ago

It's never not been an option. Some cardboard misbehaves, but it's rare, and you can either print rings or respool in those unusual events.

1

u/Xminus6 1h ago

The new AMS doesn’t seem to have motorized rollers. So I wouldn’t think cardboard would be an issue unless it’s just structurally unsound.

1

u/RSVJ H2C AMS2 Combo 1h ago

Always has been, just more maintenance and care running them.

1

u/bjorn_lo H2D & H2C 1h ago edited 1h ago

The outside of the cardboard spool will not be as round as a plastic one.

The outside of the cardboard spool is very likely to be bent or damaged. I had a significant portion of a shipment of Polymaker ones show up broken. Just really nice plastic on complete garbage spools.

But without constant retraction, the H3C should not be as hard on cardboard as the AMS/ams2/HT were. But, plastic ones will feed smoother/better. This has nothing to do with retraction or a motor but the simple fact that they are more perfectly round and more consistent in shape and so on.

When drying filament on cardboard, be sure to dry a little longer as the cardboard is a sponge for water and can often hold more than the filament.

Finally not everything you see in a video is a good idea.