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Drill shaft not turning


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LouisMiller



Joined: 12 Jul 2016
Posts: 4


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Drill shaft not turning

Hi hoping someone can help me! I have been following Angus's Robo Wars Youtube videos "How to build a Combat Robot - Episode 1 Cordless Drill Hacking" and have done all that he has said but my 18v Ozito drills (both) will not turn freely (even before I have screwed in the grub screws). Have I done something wrong? Is there a way to fix this?

Post Wed Jul 13, 2016 2:00 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Pics? Have you disconnected the Motor wires? If not this may make the motors brake which causes some resistance.

Steve
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Post Wed Jul 13, 2016 2:22 pm 
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LouisMiller



Joined: 12 Jul 2016
Posts: 4


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Thanks Steve for your response. I have tried to post a photo but with no success (I have two jpeg files or pdf files - cannot seem to upload either (?)). This is my first experience with this forum. To answer your question the wires have been disconnected from the main assembly but they still protrude from the drill motor - would this cause the resistance? If yes, how do I remove them? Thanks

Post Wed Jul 13, 2016 3:28 pm 
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marto
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You will need to upload images somewhere else and then link here.

How much resistance are we talking about then. Like a drill is quite hard to spin from the output end just because of the gearing.

Steve
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Post Wed Jul 13, 2016 4:59 pm 
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Ellis



Joined: 21 Jul 2012
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Location: Shopshire, England


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Imgur.com is an easy way to host images. Just upload and copy the URL to here. Smile
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Post Thu Jul 14, 2016 3:23 am 
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LouisMiller



Joined: 12 Jul 2016
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Hi, thx again for your help - I have finally the pics on imgur as requested (http://louisalston.imgur.com/all/).

Hope these photos are able to give you an indication as to the reason why the drill shaft is locked before I put in the grub screws. Thanks.

Post Fri Jul 22, 2016 11:57 am 
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Knightrous
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Joined: 15 Jun 2004
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Location: NSW


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quote:
LouisAlston's images are not publicly available.

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Post Fri Jul 22, 2016 12:52 pm 
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evil_steve



Joined: 06 Sep 2015
Posts: 304
Location: Adelaide, SA


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Have you tried actually running power through the motors and seeing what happens? I just took apart a drill where the shaft wasn't turning by hand even before putting in the grub screws, but it seems to run fine (I was a bit worried at first, given that I had to get a bit, ah, forceful to get the reverse threaded screw out).

If you're worried about smoking electronics with a stuffed motor/gearbox, you could make up a motor "tester" using the remains of a gutter drill. Here's one I prepared earlier:


Also, once you've uploaded the pics to imgur you can then imbed them in the chat here using the provided BBCode link - just change the size to "huge thumbnail" or something first, otherwise it'll show up bloody huge.

Post Fri Jul 22, 2016 2:48 pm 
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LouisMiller



Joined: 12 Jul 2016
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<blockquote class="imgur-embed-pub" lang="en" data-id="a/O76rd">

Cheers I will try running power through the motor and let you know what happens.

Post Mon Jul 25, 2016 7:12 pm 
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