Knee rests and an amplifier for the O'Cello

thingiverse

Remixed from - The O’Cello by cokane http://www.thingiverse.com/thing:1703629 and - AddOns by Zarlor http://www.thingiverse.com/thing:1833270 I did a slight remodelling of the knee rest pads by ZARLOR and used 12mm carbon fiber tubing instead of aluminum profiles, and added panels for an amplifier with tone control for headphones and line-out https://www.aliexpress.com/item/Electric-Violin-Pickup-Adjustable-Pickup-Piezo-Pickups-EQ-Parts-Accessories-20-12/32849083156.html?spm=a2g0s.9042311.0.0.4WJWD8 Similar tubes to those I used - https://www.aliexpress.com/item/2pcs-3K-Pure-Carbon-Fiber-12MM-OD-X-10MM-ID-Tube-500MM-Long-Roll-Wrapped-Tube/32750177570.html?ws_ab_test=searchweb0_0,searchweb201602_4_10152_10065_10151_10344_10068_5722815_10342_10547_10343_10340_10341_10548_5722915_10698_10697_5722615_10696_10084_10083_10618_10304_10307_10302_5722715_5711215_10059_5723015_10534_308_100031_10103_441_10624_10623_10622_5711315_5722515_10621_10620,searchweb201603_15,ppcSwitch_5&algo_expid=ea191c62-6732-408c-a59a-5e0a175b2fac-8&algo_pvid=ea191c62-6732-408c-a59a-5e0a175b2fac&priceBeautifyAB=0 For details on printing the parts and combining them with the O'Cello see the added PDF Oh, you need to print both knee rests - they are not symmetric so there is a right and a left one... Total weight of the instrument is now 1720g. Total cost (fincluding materials, tuners, strings, carbon bow, electronics and battery) was about $ 150 (in 2017)