Interchangeable spool holder for K3 Max single riser

This model is for an interchangeable external spool holder for use with the Kobra 3 Max single Ace-pro riser - Click for Link It will not work with my other risers. The spool holder has a threated adapter that can hold an adapter for any size spool. Three sizes of spool spindles are included: Large: 63.5 mm x 70 mm (most plastic spools) Medi)um: 50 mm x 70 mm (most cardboard spools) Small : 36 mm x 57 mm (small diameter spools) An optional threaded washer. 3D printing The model requires little to no support when printing and a print profile is included. About me   I enjoy creating 3d models that others can use and appreciate. It is a very fun pastime. I find it very rewarding to see my models downloaded and printed. I put lots of thought, time and effort to create each model print out multiple iterations to make sure it works just right. If you liked my model and wish to encourage me please give it a like. If you wish you can also help me with my filament costs. You can also use the discount codes listed below. You will save and I get a small commission for certain purchases. Thank you. DISCOUNT CODES FOR ANYCUBIC PRINTERS AND FILAMENT Here are some discounts codes that you can use to save on filament and printers. Note the discount codes may not work with already discounted items. Thank you ANYCUBIC STORE DISCOUNT CODES United States site $10 off orders over $100 | Coupon code: Darren3dPrint10 $20 off orders over $200 | Coupon code: Darren3dPrint20 $30 off orders over $400 | Coupon code: Darren3dPrint30 DE/FR/ES/IT/EU site €10 off orders over €100 | Coupon code: Darren3dPrint10 €20 off orders over €200 | Coupon code: Darren3dPrint20 €30 off orders over €400 | Coupon code: Darren3dPrint30 UK site £10 off orders over £100 | Coupon code: Darren3dPrint10 £20 off orders over £200 | Coupon code: Darren3dPrint20 £30 off orders over £400 | Coupon code: Darren3dPrint30 Australia site AU$15 off orders over AU$150 | Coupon code: Darren3dPrint10 AU$30 off orders over AU$300 |