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Post by broseph82 on Mar 13, 2020 9:56:49 GMT -5
So I bought my 4lb Mini Sonic Vibratory Tumbler a couple years back used. It’s worked fine. Lately with my last batch it’s def not running as fast as it should normally. When I put pressure on the hopper it tends to speed up immediately like it should at full speed. My question is this: is there a pressure plate underneath that connects somewhere or is it maybe the motor?
It’s not under loaded nor is it overloaded. My polishing hopper also makes the tumbler run louder as it seems lighter than the “shaping” hopper. Weird stuff and just thoughts but I thought I could throw this out there and see what y’all thought. Thanks!
Edit: once this load is done, I’m going to take it apart and see what’s going on. I don’t want to rush out and buy a motor if that’s not it.
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Post by Drummond Island Rocks on Mar 13, 2020 9:59:11 GMT -5
Not sure if it helps you or not but I keep a piece a piece of cardboard between the plate and the hopper. Without that cardboard the noise is 5X worse. Almost like the hopper was not being held tight enough. I have not noticed a change in motion with and without the cardboard just a change in noise level.
Chuck
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Post by broseph82 on Mar 13, 2020 10:09:00 GMT -5
Not sure if it helps you or not but I keep a piece a piece of cardboard between the plate and the hopper. Without that cardboard the noise is 5X worse. Almost like the hopper was not being held tight enough. I have not noticed a change in motion with and without the cardboard just a change in noise level. Chuck Thanks! I’ll try that. And to add, I just found the manual online and see that there is indeed a spring inside the machine. Bet that thing isn’t right anymore |
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Post by rmf on Mar 13, 2020 10:56:27 GMT -5
I have found the aluminum tub holder is not as tight as it once was. I have had to add paper towel folded to keep it tight.
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Post by broseph82 on Mar 13, 2020 17:13:43 GMT -5
I have found the aluminum tub holder is not as tight as it once was. I have had to add paper towel folded to keep it tight. It holds it tight enough it’s just acting like it doesn’t have enough weight on the spring to keep it in full gear when turned all the way up. I’ve never taken it apart, so that will be on the agenda very soon. |
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Post by toiv0 on Mar 13, 2020 18:34:26 GMT -5
If the rubber holder is weak it won't hols the barrel down tight enough. The other thing is if the metal holder of the rubber is bent down the same thing.
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Post by pauls on Mar 13, 2020 20:34:37 GMT -5
There's a couple of things it could be, both already mentioned. The Aluminium thing that holds the hopper can get loose that means its going up and down at a great rate but the hopper is just floating on the spot, it can be tightened by giving it a squeeze, I used a G clamp which did the job nicely, before that I had been using packing but wanted to make it like new again.The rubber holder downer might be week , doing the same thing.
The other thing is the spring, if you look at the armature that the hopper is attached to you will see a large spring that looks like a valve spring from an engine, inside that spring is actually another tension spring that is prone to breaking. As far as I know you can't just buy that spring, they will sell you a "kit" with all the rubber bits and the two springs and it aint cheap.
Once you have gone through and rebuilt the vibe you then need to adjust it, I couldn't find any instructions to do that and fiddled with it for hours to get it right.
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Post by broseph82 on Mar 13, 2020 22:08:37 GMT -5
There's a couple of things it could be, both already mentioned. The Aluminium thing that holds the hopper can get loose that means its going up and down at a great rate but the hopper is just floating on the spot, it can be tightened by giving it a squeeze, I used a G clamp which did the job nicely, before that I had been using packing but wanted to make it like new again.The rubber holder downer might be week , doing the same thing. The other thing is the spring, if you look at the armature that the hopper is attached to you will see a large spring that looks like a valve spring from an engine, inside that spring is actually another tension spring that is prone to breaking. As far as I know you can't just buy that spring, they will sell you a "kit" with all the rubber bits and the two springs and it aint cheap. Once you have gone through and rebuilt the vibe you then need to adjust it, I couldn't find any instructions to do that and fiddled with it for hours to get it right. Ugh! I like that you shared that info, what I don’t like is having to figure it out until it works again. My barrel is already hard to get into the metal thing that holds it so that’s not loose. Rubber thing on the right and that metal isn’t loose. I‘be def gotta look inside and see what the guts tell me. Thanks for replying |
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