Drill handle for DIY drill from old printer motor

thingiverse

I had discovered a few old printers that I used for building simple GRBL CNC machines like plotters, laser engravers and so on. Those printers not only have stepper motors but also some DC motors. I ordered a drill chuck with 3mm or 3.17mm mounting diameter for motors with 3mm drive shaft. You will need some insulated wire about a foot and also a 3mm Machine Screw/Bolt M3 x 40mm which is another way of saying 3mm diameter 40mm long. And a nut with 3mm inner diameter too. I designed and printed this handle to fit the motor connected 3 18650 batteries, push button, mounted all of that and got a nice small low rpm cordless drill. Low rpm drills are needed in many cases for example for drilling wood and plastic. If you drill wood or plastic with high rpm the plastic tends to melt and that ruins the drill bit and the wood starts to burn. That's why I'm making an accent that this drill will have relatively low rpm. I'll provide a link to my design files soon so you can edit it online using Oshape / online CAD. You can find the parts for dirt cheap on Banggood. Here are some links: Charger balancer: https://www.banggood.com/custlink/mGGDYEVPAL Drill chuck: https://www.banggood.com/custlink/GKmDhdttkC or this one: https://www.banggood.com/custlink/3GmGyRt5An Push button: https://www.banggood.com/custlink/GDGDhE55qq Here's a link to my youtube channel, it's in Russian so you might not understand much but you can fast forward to the end of the video to see how it looks. This is now a prototype and I'll add a battery holder to the bottom of the drill handle later. https://www.youtube.com/watch?v=qEJ5M2L_qlk&t=302s You can edit my design files online using Oshape / online CAD. Here's the link: https://cad.onshape.com/documents/936ab514fa06a2921c0173f3/w/180d519db587c1569217b7bb/e/24ba605fcb422123853595b9 I bought the parts for dirt cheap on Banggood. Here are some links: Charger balancer: https://www.banggood.com/custlink/mGGDYEVPAL Drill chuck: https://www.banggood.com/custlink/GKmDhdttkC or this one: https://www.banggood.com/custlink/3GmGyRt5An Push button: https://www.banggood.com/custlink/GDGDhE55qq This mini drill is perfect for drilling PCBs or any other small projects. It's easy to make and anyone who has an old broken printer lying around can use the motor to build this small cordless battery drill. If you don't like it, please let me know what specifically doesn't work for you, I'll be very grateful. Maybe I didn't mention something important. This drill works great with tektonite, wood and plastic too. I even tried drilling metal and CDROM covers and it worked fine if the drill bit is normal. About vibration: there are 2 conical screws on the chuck that hold it in place when adjusting the vibration. Of course this device doesn't look very good but it's easy to use. For small projects, it's perfect. Regular drills are too heavy and Dremel type bormashinki have too high RPM and they overheat and burn holes instead of drilling. This mini drill is great for small drilling jobs. You can move the battery under the handle like on cordless drills and shurupovertas and it will look better but this device is not designed to drill rails.