Haydn Huntley’s MagBalls and MagBallArms for Delta/Kossel 3D Printers
 My adapters for the Predator effector, printed on a Photon. https://www.thingiverse.com/thing:3880977 Photo and print courtesy of Tai Hromnak |
 My Kumu-3D printer. An unusually rigid printer. |
 Photo Gallery |
Note: Due to COVID-19 I had to switch to using more expensive mail than usual.
I’m considering experimenting with less expensive mail options.
First Class postage has tracking only within the US.
Priority Mail is faster and has tracking outside of the US.
Priority Mail Express International is even faster, and works even when Priority Mail doesn’t.
One way to save on international shipping is by ordering together with a friend.
Another way is by using a freight forwarding service such as USA2You.nl or Polar Express.
| Description | Examples | Price | US First Class postage |
US Priority Mail postage |
International First Class postage |
International Priority Mail |
Priority Mail Express International |
|---|---|---|---|---|---|---|---|
| High-precision MagBalls | for a 3D printer | 12 for $18 | $5 | $8 | $17 | $45-$55 | $65-$75 |
| High-precision MagBalls | for kinematic coupling | 6 for $10 | $5 | $8 | $17 | $45-$55 | $65-$75 |
| CNC’d Delrin rod ends | 12 for $15 | $5 | $8 | $17 | $45-$55 | $65-$75 | |
| N52 NdFeB magnets | $2 each | N/A | $8 | $25 | $45-$55 | $65-$75 | |
| 215mm set of arms | Mini-Kossel w/170-190mm bed | $85 | $7 | $10 | $25 | $45-$55 | $65-$75 |
| 288mm set of arms: | Kossel w/225-240mm bed | $85 | $7 | $10 | $25 | $45-$55 | $65-$75 |
| 304mm set of arms: | Kossel w/250mm bed | $85 | $7 | $10 | $25 | $45-$55 | $65-$75 |
| 360mm set of arms | Kossel w/300mm bed DC42’s Precision Kossel Kumu-3D Ultibots D300VS |
$90 | $7 | $10 | $25 | $45-$55 | $65-$75 |
| 400mm set of arms | TEVO Little Monster w/340mm bed | $115 | $7 | $10 | $25 | $45-$55 | $65-$75 |
| 440mm set of arms | Anycubic Predator w/370mm bed | $115 | $7 | $10 | $25 | $45-$55 | $65-$75 |
| Custom length set of arms up to 600mm | $115 | - | $15 | - | $45-$55 | $65-$75 | |
| 10mm pultruded CF tubing instead of 6mm | extra $60 | - | $15 | - | $45-$55 | $65-$75 |