Better Bowden Filament Speed Loader
by mickeypop · via Printables
| Format | STL |
| Category | Other |
| License | CC BY-NC-SA |
| Triangles | 2.3k |
| Uploaded | Mar 14, 2026 |
⬇ 4 downloads
❤ 3 likes
👁 81 views
Description
I liked several Speed Loaders, each with its own mods, and decided to merge them. Integrated Ideas - LI 18650 battery with USB charging, with USB-Mini, USB-Micro, and USB-C board compatible STLs. - Case supports 3V and 6V motor soulutions. - Filament Guide. - Magnets for mounting, made the bottom 3mm thicker to accommodate. - Changed Arrow for those without multiColor printing. My add-ins - Added mounting slots for Charging Boards. - Added mounting slot for the StepUp board if a 6V motor is used. - Added an On/Off switch to stop accidental use in storage. (needs hot glue) - Added alignment points to keep it in place while closing. - Added a viewport to see charging LEDs, RED charging, BLUE finished. - Printable Gears, best printed with .25 nozzle, but with .4 and slowed print speed, they work, though for durability, metal is better. - Changed the Lever Arm somewhat; it fits an M3/22mm screw as the pivot. The pivot bar kept popping out; now it screws in. Also added some clearance for the gears. I used 5x1.75mm and 8x3mm and No-Magnets button magnet variants. There are USB-Mini, USB-Micro, and USB-C cases and tops to fit your charging boards. Assembly A little Hot Glue is best to hold the Switch and Charging board in place while assembling. A small block in front of the Micro switch is helpful. If it slides forward, it does not reliably turn on. I used a scrap of plastic and just melted it in with a soldering iron. Hot Glue works, but don't glue the switch; just a blob in the slot so it can still be removed if needed. Sources Gears https://www.aliexpress.us/item/2251832783186461.html?spm=a2g0o.order_list.order_list_main.22.1ddb1802VOyc4p&gatewayAdapt=glo2usa You will need 2 gears. Motor https://www.aliexpress.us/item/2251832735798041.html?spm=a2g0o.order_list.order_list_main.40.1ddb1802VOyc4p&gatewayAdapt=glo2usa I used the 3V motor, 500RPM. The 6V works here, but with a 3.7-4.2V battery, it will be slower. I added support for StepUp BRD. to get 6V. I had the Micro Switch, but they are easily available. Mine came from AliExpress also. "Srait Type", https://www.aliexpress.us/item/2251832624991460.html?spm=a2g0o.order_list.order_list_main.64.1ddb1802VOyc4p&gatewayAdapt=glo2usa Either way, you need a 6.5 mmW x 12.5mmL x 6mmH Micro-Switch. LI Charging Boards, you will need the 17mm x 22 mm boards to fit the case IMPORTANT: Do NOT get the USB-C with the dog-ears on the end; they are 28mm long and will not fit the case. https://www.aliexpress.us/item/3256808472573450.html?pdp_npi=4%40dis%21USD%21US%20%241.27%21US%20%241.27%21%21%211.27%211.27%21%402101eede17725795885754939e5677%2112000046128210126%21sh%21US%21169260402%21X&spm=a2g0o.store_pc_allItems_or_groupList.new_all_items_2007473526568.1005008658888202&gatewayAdapt=glo2usa A StepUp Voltage Converter is used with a 6V motor. Preset the output to 6V-8V before installing. Just make sure it is 17.5mm wide to fit the case. NOTE : this link is for 10 boards, but a reference, search for"MT3608" step up. MT3608 Adjustable Step Up Voltage Regulator IN:2V-24V to OUT:5V-28V 2A DC-DC Boost Converter https://www.aliexpress.us/item/3256806179643335.html?spm=a2g0o.order_list.order_list_main.59.28361802S2lSkf&gatewayAdapt=glo2usa Hope this helps
Originally published on Printables