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. |
 More Photos |
| Description | Examples | Price | US First Class postage |
International First Class postage |
|---|---|---|---|---|
| High-precision MagBalls | 12 for $18 | $7 | $14 | |
| CNC’d Delrin rod ends | 12 for $15 | $7 | $14 | |
| N52 NdFeB magnets (each one tested) | 12 for $24 | $7 | $24 | |
| 215mm set of arms | Mini-Kossel w/170-190mm bed | $85 | $7 | $24 |
| 288mm set of arms: | Kossel w/225-240mm bed | $85 | $7 | $24 |
| 304mm set of arms: | Kossel w/250mm bed | $85 | $7 | $24 |
| 360mm set of arms | Kossel w/300mm bed DC42’s Precision Kossel Kumu-3D |
$90 | $7 | $24 |
| 400mm set of arms | TEVO Little Monster w/340mm bed | $115 | $7 | $24 |
| 440mm set of arms | Anycubic Predator w/370mm bed | $115 | $7 | $24 |
| Custom length set of arms up to 600mm | $115 | $7-$15 | varies | |
| 10mm CF tubing instead of 6mm | extra $60 |
Email haydn.huntley@gmail.com for MagBalls, magnets, and extremely carefully assembled, precisely measured carbon fiber arms.
I test and measure each set of arms. The magnets in the joints have a tested holding strength on a MagBall of at least 1.5kg.
The arms in a set match lengths within 50µ, according to my calipers, and typically they match within 30µ.
All sets of arms include MagBalls, N52 magnets and CNC’d Delrin ends.
Lubrication: I recommend using bicycle chain lube. Inexpensive, easy to get, sheds dirt, and stays in place.
My favorite is White Lightning Easy Lube