A desktop double yarn minder designed to allow your yarn to spin freely as you knit or crochet. It can hold yarn for two separate projects, or for one project using two types of yarn. The base also includes built-in trays for storing any small accessories you may need.

I have ideas for future accessories, such as a clamp to secure the yarn minder to a table and an additional riser to hold four yarn cakes. These designs will be released later.

Printing Instructions

The riser is designed to nearly max out the build capacity of a Bambu Labs P1S or X1C, with dimensions of 250mm x 250mm x 10mm.

• On the P1S, there's just enough room for the prime line.
• On the X1C, the calibration lines will need to be disabled, relocated, or removed quickly before the print starts.

Print Settings

• Adaptive layer height is enabled for all parts to ensure smooth round-overs.
• Three wall loops are used on the riser to increase rigidity and reduce wobble or sagging when holding large yarn cakes.
• Aside from these, the model uses the stock 0.20mm Standard profile for the P1S/X1C.
• The standard profile will work fine, though round-overs may be rougher and the riser slightly less rigid.

Optional Weighting

The base includes cavities sized for standard 0.25oz wheel weights (19mm x 16.4mm x 3mm + adhesive). I used the following weights: [https://www.amazon.ca/dp/B0F1C77CNV](https://www.amazon.ca/dp/B0F1C77CNV)

These weights are optional but recommended, as they help prevent tipping when pulling on the yarn.

• The base holds up to 20 weights, adding a nice heft.
• Alternative fillers include BBs, ball bearings, or anything heavy that fits the cavities.
• I recommend avoiding sand, as it may be blown around by the part fan during printing.

To install the weights:

1. Insert a pause just before the cavities are sealed (This is already done in my print profile).
2. Slide the weights in with the 19mm side horizontal.
3. Ensure the weights are pushed all the way down.  They should be just below the lip of the cavity before resuming the print.
4. If removing the adhesive backing, the weights may stick to the cavity walls but can be positioned with some effort.
5. Leaving the backing on is also an option, though I removed it to prevent rattling.

Bed Adhesion Notes

If you're experiencing bed adhesion issues, the riser may be tricky to print:

• It has a relatively small contact area at the top.
• It prints at the very edge of the bed, which may be unevenly heated.

I had some issues with Bambu Labs Basic PLA:

• On the textured PEI sheet, using a purple glue stick solved the problem.
• On the SuperTack sheet, increasing the bed temp to 55°C resolved adhesion.

Silk PLA may adhere better.. Most of my test prints were with Bambu Labs Basic PLA, but I’ve no adhesion issues with Eryone Dual Silk PLA.

Assembly

1. Thread the split ring through the swivel lanyard snap hook, then attach it to the holes in the riser.
2. Slide the dangler bases onto the danglers (snug fit at first).
3. Clip the danglers onto the swivel snap hooks.

I also recommend attaching anti-slip rubber bumpers (9.5mm x 3.8mm or similar) to the bottom to prevent the yarn minder from sliding. These work well: [https://www.amazon.ca/dp/B06XCGM8JT](https://www.amazon.ca/dp/B06XCGM8JT)