Jim Whetren belts up
|David Carne||10/12/2009 20:49:40|
|11 forum posts|
Like the article on using a similar machine as the poor mans linisher, I bought this machine basically for use in clockmaking and sharpening lathe tools etc.
I have been testing it, and on using the belt a great amount of chatter/vibration occurs when applying pressure to the belt with the work ,against its backing plate. I am not sure whether this is caused by the joint in the belt.
Does anybody have experience of using a similar tool and if so can they tell me the reason and hopefully acure for this problem
|Graeme Brumfitt||22/09/2010 23:13:18|
|1 forum posts|
Have just brought one of these myself; first time out I had the same problem.
I too thought it was the join, as it did seem thicker than the rest of the belt.
No cure as yet but maybe the belts I have are the not best, as I brought them from Aldi?
|Steve Garnett||23/09/2010 00:28:02|
|837 forum posts|
Hmm... from my experience with hand-held belt sanders, I'd start by looking at the overall tension of the belt drive system. If it's slightly too loose then the backing plate spring is relatively undamped - rather more than it would be if there were greater tension - and the end result is that snatching occurs far more easily, and that it doesn't take too much force applied to make the belt slip and stall. And at that point, it's very likely to rip the belt, which is not such good news.
On a 'proper' linisher, there's no spring in the backing plate at all - the belt tension adjustment is all there is, and as a result you don't get this sort of problem. How easy it is to adjust or alter the tension on a cheap belt sander I don't know, but this is almost certainly at the root of your 'snatch' problems.
|3147 forum posts|
|Make sure the belt is on the correct way round, the inner edge of the joint should trail from the direction of travel.|
|Neil Wyatt||22/01/2018 12:00:20|
17077 forum posts
The best belts have a very thin taped joint and don't 'bump' as you go past the join. Well worth getting.
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