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#1
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Rhino track failier?
My team purchased the Rhino Tracks from Andy-Mark this year, but after driving with them, the pulleys (am-3298) have started to fall apart. The plastic is chipping around the bearing. Is anyone else having similar issues?
Last edited by The Ginger : 02-06-2016 at 01:51 PM. |
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#2
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Re: Rhino track failier?
sorry pic in not working
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#3
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Re: Rhino track failier?
Try attaching the image to the post as an attachment, or linking it differently.
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#4
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Re: Rhino track failier?
[IMG]blob:https%3A//mail.google.com/82aaea0c-d18f-40c0-8001-74d3ed496baf[/IMG]
Last edited by The Ginger : 02-06-2016 at 01:49 PM. Reason: pic to big |
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#5
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Re: Rhino track failier?
copy this link into google without the [IMG]
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#6
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Re: Rhino track failier?
Try again. Link does not work at all.
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#7
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Re: Rhino track failier?
Upload your image to imgur.com and provide the link here. We're not logged into your Google account, so we can't see images in your email.
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#8
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Re: Rhino track failier?
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#9
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Re: Rhino track failier?
there it is, thanks
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#10
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Re: Rhino track failier?
Did you use locate when you assembled them? Because that looks. Exactly. Like. When a student used locate on our wheels. One year some got. On the plastic and the locktite eats. A. Component of the plastic. And they fall. Apart
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#11
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Re: Rhino track failier?
We just had the same breakage today. We are checking for more signs of weakness. Did you have more than one break??
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#12
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Re: Rhino track failier?
these wheels where assembled with 6 bolts, 3 per side. we followed the manufactures construction. I think that it may come from a combination of over-tightening of the the track, or the force of the robot slamming into the ground after crossing a defense. We have broken 5 of these wheels so far. Is this happening for anyone else?
-thank you for any info you can give |
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#13
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Re: Rhino track failier?
Quote:
Some plastics react badly (called crazing) to superglues (CAs in particular) and Loctite. The bearings should be a slight press-fit into those pullys and should not need any glue. If they are a little loose, use a fender washer and spacer to keep them there. |
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#14
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Re: Rhino track failier?
no adhesives, only bolts. this is a very dense plastic, when it breaks it cracks it is a lot like obsidian, it forms very shiny surfaces
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#15
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Re: Rhino track failier?
Just checked all that we have for our second bot and they have cracks in every one. Looks like it is from too tight of a fit with the bearing. Waiting for a reply from AndyMark.
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