<p>Is there any simple way of creating tappered thread in OpenSCAD? I need something like 10 mm in diameter at the end, 9 at the top and the height of 10 mm.</p>

[{'answer_id': 1375, 'author': 'fred_dot_u', 'author_id': 854, 'author_profile': 'https://3dprinting.stackexchange.com/users/854', 'pm_score': 1, 'selected': False, 'text': '<p>If you are able to remove the gear, as I suspect you can, a useful tool is the file card. It resembles a flat hair brush but the bristles are short wire, very stiff. In traditional use, it removes metal shavings from conventional metal files. It will easily remove plastic from between the gear teeth. If you are unable to remove the gear, but can access a portion of the exposed teeth, a suitably named dental pick can remove slowly the clogged material.</p>\n\n<p>Cooking the gear may not cause a fire, but could carbonize the plastic onto the teeth, perhaps creating a greater problem.</p>\n'}, {'answer_id': 1377, 'author': 'ben', 'author_id': 2186, 'author_profile': 'https://3dprinting.stackexchange.com/users/2186', 'pm_score': 2, 'selected': True, 'text': '<p>I mostly use a tooth brush for that kind of problem</p>\n'}, {'answer_id': 1382, 'author': 'andrewmuck', 'author_id': 2187, 'author_profile': 'https://3dprinting.stackexchange.com/users/2187', 'pm_score': 1, 'selected': False, 'text': '<p>I use an air bulb to clean dust out of teeth, but the clicking sounds like the stepper has too much mechanical load so i am guessing there is something solid stuck at that point. Poke it off with something sharp.</p>\n'}, {'answer_id': 1398, 'author': 'BYE', 'author_id': 442, 'author_profile': 'https://3dprinting.stackexchange.com/users/442', 'pm_score': 2, 'selected': False, 'text': '<p>If your gear skips at the same place each time I have found on my machine that the gear does not fit the motor shaft properly and has a larger gap between the gear and the idler roller.</p>\n\n<p>Check to see if there is a thicker buildup on one side of the gear than the other.</p>\n\n<p>On my machine what I had to do was to use a spare motor cable and watch the gear as it turned, and at one point on the gear it would slip and shave off a small amount of filament. </p>\n\n<p>If that turns out to be your problem use a good caliper to measure your motor shaft, and the inner diameter of the gear. </p>\n\n<p>Sometimes the minimum shaft diameter and the maximum bore diameter of the gear are just enough to allow that small variance in the outer rotation diameter of the gear.</p>\n\n<p>Sometimes just replacing the gear will solve the problem, and sometimes it will require a new motor and/or gear.</p>\n\n<p>As an alternative you can clean the gear using Acetone and a toothbrush, but that will be required often and you will have buildup in the chamber below the gear which can also cause feed problems, and you must make sure that all Acetone has dried before using the extruder again.</p>\n\n<p>I suggest starting with changing gears since they are the cheapest and using the Caliper to find the closet fit possible. </p>\n\n<p>You can get gears on e-bay at very reasonable prices. and I bought several to get the best fit possible.</p>\n\n<p>Good luck and consider if you want to make a more permanent repair or temporary repair when making your choice. I chose the more permanent one because the slippage was affecting some of my prints. </p>\n'}]
['https://3dprinting.stackexchange.com/questions/1383', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/2189/']