Grizzly grinder making work piece jump

[grumpy_grinder]

Hey guys as soon as I use the platen the work piece jumps , if I sharpen on just the belt it's fine. Can anyone tell me what's wrong? I just bought it and put it together. I posted a video of the issue

[video]http://vid562.photobucket.com/albums/ss66/shayne_k1500/Mobile%20Uploads/trim.5B28B645-B473-4E50-9D25-6DC0EB7F1314.mp4[/video]

 

[Bill DeShivs]

Bad belt joint. Get better belts.

 

[grumpy_grinder]

Thanks bill! I was hoping it was something simple. I'll try different belts.

 

[Stacy E. Apelt - Bladesmith]

Yep, belt joint bump. To some degree, it is unavoidable. Better belts bump less.

 

[grumpy_grinder]

Thanks guys , I just bought this grizzly to tie me over until the spring , I'll be getting a TDM then!

 

[Lieblad]

......

 

[grumpy_grinder]

thanks , yes arrows are orientated with motor rotation

 

[Matt Rochester]

Wd40 can help. I only have issues when finishing the belly of the tang with higher grits.

 

[grumpy_grinder]

where do you spray the wd40? on the platen?

 

[Matt Rochester]

On the belt. I think they make stuff specifically for belts but I just use wd40.

 

[grumpy_grinder]

I'm not trying to be an idiot matt but I'm guessing you spray on the backside of the belt (none grit side)

 

[Matt Rochester]

No problem. Spray the grit side. I had heard of this a while back and never tried it. Then a few weeks ago I gave it a shot and it helped tremendously. It's not really a problem with rubber wheels but mine are metal so the hop is pretty significant on higher grits.

 

[grumpy_grinder]

Ok I'll give it a try , my
Idler wheel is metal but the drive wheel is rubber coated

 

[S.Cox]

Silicone spray on the back of belt works ok kinda messy but also helps keep platen cool.Some belt joints are a little tougher than others.

 

[12345678910]

You can try to knock down some of the grit on either side of the splice with diamond files.

 

[grumpy_grinder]

Silicone spray on the back of belt works ok kinda messy but also helps keep platen cool.Some belt joints are a little tougher than others.

thanks cox , i'll get a can to try out. I got some new belt. so far so good

 

[S.Cox]

What's up grumpy?? You got that grinder bumping tonight ??? Hope you have a happy new year!!

 

[Kevin McGovern]

That sounds dirty