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3D Print Your Own Mini DC Motor Driven Reduction Gear Train

by • February 16, 2016 • No Comments

3dp_buggy_thingiverse_logoThe concept of a gear train is a pretty easy one: there are two wheels with teeth on them that when connected can be utilized to drive or move a machine of a few kind. The motion is regulated by driving one of the gears, usually the extra
compact of the two, that can cause the larger gear to move along with it. The teeth on the gears are made with a specific pitch that practuallyts them of getting stuck together while yet rolling together without slipping. If the gears are made correctly, and so the outcome can be a smooth transmission of rotation of the drive gear to the larger gear.

3dp_reductiongear_Gears_animationWhilst the gear pretty does not date back as far as the wheel, it is one of the earliest mechanical systems made by man. There are examples of ancient geared mechanisms dating back as far as the 300 BC throughout Asia and 100 BC in ancient Greece. But the innovation wasn’t widely utilized until much later when primitive gears were utilized to drive water mills or to grind grain. Of course extra
rigorous edition of a reduction gear train can be discovered in geared bicycles, automobile transmissions, farming equipment and actually the extra
compact editions utilized in watches.

When manufacturer and Thingiverse user ManWithoutOptions decided to create his own peristaltic pump he requireed a fewthing to drive the water through the device. Of course there are a lot of tiny, inexpensive, low torque motors that have reduction gears made into them, but he decided to see if he may do it himself. He first checked Thingiverse to see if there were any reduction gears on the market, but he discovered that they require to create too much internal friction, that may manufacture them not easy to be driven by the tiny toy DC motor that he wanted to use. But he took inspiration of their creations and tweaked them until he came up with a gear create that worked perfectly with his little motor.

“I am in the system of createing a peristaltic pump. I require a workforce source with sufficient torque to drive the water. I may use a 10 dollar motor with reduction gear made in…but I have a 3d printing device so why not DIY. It only take 12 hours in one go to print all the parts and 5mins to assemble. Reduction gear is what manufacture these useless bargain-priced toy motor like these into actual workforce,” he explained.

3dp_reductiongear_thingiverseAccording to ManWithoutOptions all of the parts for the reduction gear train that he made took him of twelve hours to print. All of the parts requireed to be filed and smoothed so the gears may fit together well adequate to rotate without the surface texture providing resistance. By necessity the top plate and the output axle was made as a quite tight fit, so ManWithoutOptions suggests that they be given special attention when filing and smoothing. But once the gears were smoothed out the actual assembly only took him of five minutes. In order for the gears to move correctly without getting stuck, or worse melting and deforming the plastic, all of the parts require to be heavily lubricated.

3dp_reductiongear_printedAll of the 3D models may already have assist structures made into them, so there shouldn’t require to be any extra
assists produced for them. ManWithoutOptions suggests that the maximum layer height utilized to 3D print the parts is 0.2mm, yet he 3D printed his parts with a 0.1mm resolution. The parts should be 3D printable on only of any brand 3D printing device, yet ManWithoutOptions utilized his Ultimanufacturer 2. Obviously don’t try to 3D print the “Entire Assembly” STL file included on the reduction gear Thing page, as it is just for reference and can not print correctly.

You can take a appear at ManWithoutOptions via his tiny DC motor to run his reduction gear here:

Whilst this most likely is not going to be the most version for running a device that requires a geared motor, it is yet a excellent project for anyone interested in learning how a geared motor works. It may be perfect for school environments, or only a manufacturer appearing to experiment. You can find out extra
of ManWithoutOptions’ project by checking out the assembly and printing instructions over on Thingiverse, or reading through his post on Reddit. Discuss in the 3D Printed Reduction Gear forum over at 3DPB.com.