can any tw90 owners post a quick vid?

Rhinoknives1 said:
On the Hardcore, Tag 101, Tw-90 any wobble is from the belts not being cut straight and that happens on top of the Line, Norton 3M etc belts too.

Also in 20 years of this, I have never seen cooling grooves on a rubber wheel? There are Serrated wheels for a bit faster steel removal.

Some like them, I just put on a fresh Ceramic belt.
Click to expand...

If you look at the northridge photos the cooling grooves are on the all the wheels you'll see what I mean. It's on their site
 
My Northridge grinder runs great! Couldn't be happier. It's awesome grinder. Maybe I was just lucky but I doubt it's well engineered thought out design.
 
Hey coop can i forward you the videos to see if yours is doing the same thing

Facebook Paul Ruble III
 
Thank you HSC for being helpful

Those both look better then the northridge vids I have

For future reference it's best to set the Camara down in front so we can see the belt movement without Camara movement. (Not towards you HSC your videos was good)
:thumbup:
 
I think the hard-core/burr King is a very good grinder and worth looking at

Is this better? I offset the belt on the platen by adjusting the tracking so u can see it against a fixed line.

https://vimeo.com/173255415


Sent from my iPhone using Tapatalk
 
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I did some videos today i will get them up later i took video with 7 or 8, belts no one has called to complain, i only have had calls to tell me how much they liked the grinder if you use 2.00 dollar belts some are going to wobble last night i tried 25 different belts one had a slight wobble it was a 36 grit ceramic.

Nobody has called me about any of this.
George
440-225-4200
 
Northridge tool said:
I did some videos today i will get them up later i took video with 7 or 8, belts no one has called to complain, i only have had calls to tell me how much they liked the grinder if you use 2.00 dollar belts some are going to wobble last night i tried 25 different belts one had a slight wobble it was a 36 grit ceramic.

Nobody has called me about any of this.
George
440-225-4200
Click to expand...


Hey George this is Paul from up in alaska thanks for responding I was going to call you today as I missed it on friday

I'd love to see the video before I buy.

I have 2 vids sent to me and both show a pretty big side to side wobble.
To be fair to you I don't know how they assembled them .
All I know is they both show pretty bad side to side wobble.

If you can set the Camara down like HSC did for the videos that would be great.
 
HSC /// said:
I think the hard-core/burr King is a very good grinder and worth looking at

Is this better? I offset the belt on the platen by adjusting the tracking so u can see it against a fixed line.

https://vimeo.com/173255415


Sent from my iPhone using Tapatalk
Click to expand...

That was a perfect video! Good buddy thanks

Hard to see the belts in other videos dues to human movement.

This is perfect and your grinder is smooth thanks man
 
Mabey they didn't call to complain. Because they think it's ok . (I for one find it unacceptable ) imo the belt should have barely any wobble. HSC is a good example

Or perhaps as my lady put it no one wants to admit it lol.

Like I said, I have always said to be fair we need to see your side of it.

Because it's totally possible that they don't have enough tension on the belt
Or perhaps the tool arm isn't in the best postion. Or not quite assembled right
 
Teppojutsu said:
Mabey they didn't call to complain. Because they think it's ok . (I for one find it unacceptable ) imo the belt should have barely any wobble. HSC is a good example

Or perhaps as my lady put it no one wants to admit it lol.

Like I said, I have always said to be fair we need to see your side of it.

Because it's totally possible that they don't have enough tension on the belt
Or perhaps the tool arm isn't in the best postion. Or not quite assembled right
Click to expand...

I have a pretty good grinder that tracks well. However, some belts are just off by a bit, and will wobble.

Maybe the belts in the video that you saw were not cut properly or were not of good quality.
 
Thanks smith. but 2 different grinders ,2 different belts ,same problem
I'm done till I see George's video.

Unless LCoop wants to show his.

I completely understand that belts aren't straight. That said, I would not be satisfied with what I saw .

If I saw something like HSC posted I'd be fine . :)

Please if anyone wants to see it , that way they aren't asking me silly questions hit me up on Facebook .

Thanks smith I appreciate the heads up :)


but I'm not totally new to using tools lol

Which brings me to my theory .
I personally think (unless both grinders where assembled incorrectly )
That the straight grooves in the drive wheel and other wheels
(. is it called the idler wheel?)
Are MAGNIFYING the INCONSISTENCIES in the BELTS. I don't have a simpler way to explain how I think.

THE WHOLE REASON I wanted the northridge is they are supposed to be able to make the most PERFECTLY MACHINED grinder. Now with that being said

Perfectly round spinning very fast with a belt that's cut at a slight angle .
Hopefully this is painting a mental picture of a perfectly balanced wheel with a shitty tire on it still not going to roll straight till it hits it's balance Point right?

Instead of smooth wheels which allow some give to let the" not straight" belt rotate without a wobble. Do The GROOVES in the wheels not allow this give?

Now if George shows a video that's like HSC or any kmg vid or any tw90 videos then I'll be a happy camper

Till then please don't ask me unless you get ahold of me to see the videos
 
S.Alexander said:
I have a pretty good grinder that tracks well. However, some belts are just off by a bit, and will wobble.

Maybe the belts in the video that you saw were not cut properly or were not of good quality.
Click to expand...

Hit me up on Facebook smith I'll show you the vids and you can tell me if it's acceptable to you
 
His name is Shane not smith...

I'm going to reiterate what Javan said. You are going to irritate people here doing what you are doing. You ask for advice and answers and folks with more experience than you who own one or several grinders have answered your questions. Then you dispute their answers and advice and ask for videos.

I'm not trying to come off as a jerk but this kind of stuff is what drives long time experienced knife makers from this forum. You frustrate someone when they take time to answer you and then argue/debate/ignore them and for some folks that's enough to say f it and stop posting. That affects me and others in this community which has already seen a number of long time experienced makers quit posting here.

You have your answers, 99% of the community agrees the TW90 is the best most feature rich grinder on the market right now. Northridge may move in to that position but no one will know that a month after its released when all the extra tooling is not even available. A hundred videos will not change that. The belt wobble as stated is almost certainly due to shit belts. If you've run a 2x72 like most of us helping you then you would have run into this and know how common it can be with cheap belts.

Buy a grinder and make knives that's what you're here for right?

-Clint
 
Teppojutsu said:
Hit me up on Facebook smith I'll show you the vids and you can tell me if it's acceptable to you
Click to expand...

Yeah it's Shane. Not sure where you got Smith from. Are you taking a dig at me?

I'm not on Facebook, so I won't be hitting you up there. I mostly use this forum for advice, and to share what little I have learned about knife making.

If you don't like the advice you're getting, or the "silly questions" as you put it, then why don't you just close the thread?
 
Any grinder will wobble with shit belts. I've got a stack of premium 3M 984F Cubitron II's that wobble half an inch to either side with any grinder. These are $10 belts, and indisputably the best quality available, even if they're not your favorite belts. It's much rarer with premium belts, but it does happen.

Bad wheel alignment on a grinder can cause an exacerbation of minor belt issues, but from the grinder side, it's always fixable.

No grinder can make cheap, or bad belts, track properly. However, minor tracking issues, shouldn't affect a competent knifemaker's grinding. Yes, extreme wobble is untenable, and I simply send those belts back for replacement. Like any industry, occasional QC issues are a given in tooling.



As to your theory about the grooves in the wheel causing or amplifying tracking issues; I understand why you'd come to that conclusion, but it's highly unlikely. The tracking surface (top of the grooves) is even across the plane, and shouldn't affect tracking negatively. Whether or not they offer any cooling or other advantage, is another question entirely.



90 to nothing, you're seeing junk belts, or some mistake in user assembly causing issues. I've certainly got no skin in this game, and no motivation to excuse some design issues of a grinder I've never used, but I just can't believe there's as significant a tracking issue as is being described by any reasonable 2x72 that's making it to market. Even the 2 wheel grinders can track a good quality belt just fine.
 
I wasnt taking a dig at you .
and I'm sorry I thought I saw smith

Augus your response is kinda an example

You say people get irritated when I don't take their advice right??

So why can't I be irritated that they can't follow my question as asked.

I just wanted some video feedback
HSC. Obliged perfectly and I think he's great for taking the time to post something meaningful.

Instead of, your an idiot they are supposed to wobble like that blah blah .

Only 1 person NUTTED up and watched the video and he Obliged my view that it was too wobbly to feel comfortable NOT buying from harbor freight.

I am waiting for George's response then I will be done .

Like I said Shane I meant absolutely no disrespect to you or anyone :)

In fact I can be very disrespectful when the situation requires and that's not the case here .

I really enjoy this forum and have nothing but respect for it and that's why I'm here is to learn.

It's just everyone wants to assume instead of looking at the videos before they ask me a question was all I was saying.

After I see a video from George it will close itself with the answers I'm waiting for.

Again I wasnt taking a dig at you it was quite the contrary I was mearly asking for your opinion after you looked at the videos

Absolutely no disrespect was meant toward you or anyone

I don't think my silly answers response was disrespectful at all .

And excuse me first being blunt if you don't like it don't look .
but no one except for AR knives even watched the video

so all the answers thus far are just uneducated guesses the videos being the education

As I said I'm well aware of belts.not.being perfect.
 
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To anyone elese if you Wana make a statement without looking at the vids
OR posting a video like hsc and others
go elsewhere
 
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90 to nothing, you're seeing junk belts, or some mistake in user assembly causing issues. I've certainly got no skin in this game, and no motivation to excuse some design issues of a grinder I've never used, but I just can't believe there's as significant a tracking issue as is being described by any reasonable 2x72 that's making it to market. Even the 2 wheel grinders can track a good quality belt just fine.[/QUOTE]

My responses is the same as last time .lol Mabey if you whatch the video instead of.makeing assumption

I bear no animosity towards you I just think it's comical you would write soo much and not take 2 min to just whatch it lmao
 
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Teppojutsu said:
90 to nothing, you're seeing junk belts, or some mistake in user assembly causing issues. I've certainly got no skin in this game, and no motivation to excuse some design issues of a grinder I've never used, but I just can't believe there's as significant a tracking issue as is being described by any reasonable 2x72 that's making it to market. Even the 2 wheel grinders can track a good quality belt just fine

My responses is the same as last time .lol Maybe if you watch the video instead of.making assumption

I bear no animosity towards you I just think it's comical you would write soo much and not take 2 min to just watch it lmao
Click to expand...

Only 1 person NUTTED up and watched the video and he Obliged my view that it was too wobbly to feel comfortable NOT buying from harbor freight.
Click to expand...

I"m willing to watch the video, but you're unwilling to post it or email it.

No facebook here


You have to make it easy for us to help you.
Also you have to make us want to help you.
 
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