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Tool Vevor Drill Bit Sharpener

Tool
Perry said:
Check out this video
@7:05 Sharpen, split point and web thinning. Good visuals.
Click to expand...
If anyone wanted to buy a Duo machine like the Motom that Stefan has you can get similar machine the OTMT from Travers Tool. It was $999 USD now on sale for $833 USD

Seems to be a poor deal considering it only sharpens up to 1/2" drills

 
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My Vevor B just arrived. Wooo Hooo!

A bit surprised to see Vevor use one of those rusty old minivan carriers.

Anyway, I have some legal stuff to do for my mom today, but I'll sneak out to the shop the first time my wife goes to the bathroom.
 
Susquatch said:
My Vevor B just arrived. Wooo Hooo!

A bit surprised to see Vevor use one of those rusty old minivan carriers.

Anyway, I have some legal stuff to do for my mom today, but I'll sneak out to the shop the first time my wife goes to the bathroom.
Click to expand...
christ that was fast. faster than mine arrived. They use UPS.
 
TorontoBuilder said:
christ that was fast. faster than mine arrived. They use UPS.
Click to expand...

Ya, my notifications all said this coming Monday. One even said delayed shipment.

Guess who the shipper was......

Yup, UPS too. But that sure as hell isn't who delivered it! I wonder if the UPS union knows......
 
UPS inside Canada from distributer to home is harmless. Lots of companies have fired Canada Post and/or have been using UPS for some time.
UPS from USA to Canada, that's different $ discussion by the time they are done with you on Customs related fees.
1735674426686.png
 
TorontoBuilder said:
If anyone wanted to buy a Duo machine like the Motom that Stefan has you can get similar machine the OTMT from Travers Tool. It was $999 USD now on sale for $833 USD

Seems to be a poor deal considering it only sharpens up to 1/2" drills
Click to expand...
I was fascinated by Stephan's video because it raised numerous points/questions in my mind. First of all I bet the Vevor machines are yet another Chinese copy, in this case of the Motom. Secondly if the Motom comes with fractional metric collets (every 0.5mm instead of every mm) would it be advantageous to add the fractional metric collets to the Vevor gear? Thirdly the Motom comes with collets smaller than 3mm altho Stephan says these are a stretch in the machines capability. Should I get smaller collets to extend the capability of the Vevor? (I have a lot of old small bits.) Or bigger collets as well for that matter. What is the limit/limiting factor in size of drill bit the Vevor can handle assuming we can add larger collet sizes???
 
Susquatch said:
My Vevor B just arrived. Wooo Hooo!

A bit surprised to see Vevor use one of those rusty old minivan carriers.

Anyway, I have some legal stuff to do for my mom today, but I'll sneak out to the shop the first time my wife goes to the bathroom.
Click to expand...
When I was young I’d throw my coat out the window then let her watch me go downstairs She said I was like a ghost there one minute and gone the next. If she looked out the window she might be lucky to see me pedaling my ass off in the distance.
 
PeterT said:
UPS inside Canada from distributer to home is harmless. Lots of companies have fired Canada Post and/or have been using UPS for some time.
UPS from USA to Canada, that's different $ discussion by the time they are done with you on Customs related fees.
Click to expand...

Yes, I know that and I agree.

What made this so different is two things.

1. Next day delivery when only next week was promised, and

2. Delivery in an old rusty minivan instead of a brown UPS truck.

I've never had either one before.
 
Canadium said:
I was fascinated by Stephan's video because it raised numerous points/questions in my mind. First of all I bet the Vevor machines are yet another Chinese copy, in this case of the Motom.
Click to expand...

It doesn't feel like a copy. It feels amazing for the money.

Canadium said:
Secondly if the Motom comes with fractional metric collets (every 0.5mm instead of every mm) would it be advantageous to add the fractional metric collets to the Vevor gear?
Click to expand...

This is an interesting question.

The design of the Vevor collet holder is such that you can see both ends of the collet as you close it down. I used a 6mm collet to evaluate it because I have a lot of dull 1/4 inch drills I need to sharpen. I think I should be able to see the difference between what the Vevor does and what my two drill doctors do.

When I closed the collet, I couldn't help but notice that the collet didn't close as uniformly as I expected it to. At the risk of raising the ire of all the other ER fans among us, I am now thinking that ER Collets are not as good as we all think they are...... 5C might be much better because it can't be closed unevenly. I plan to investigate this further later on.

In the meantime, I can't help but believe that finer collet size increments might improve this.

Canadium said:
Thirdly the Motom comes with collets smaller than 3mm altho Stephan says these are a stretch in the machines capability. Should I get smaller collets to extend the capability of the Vevor? (I have a lot of old small bits.)
Click to expand...

Absolutely. If you can afford them, then why not.

In my case I already have an imperial set of collets with 1/16 increments so I don't have to buy anything.

Canadium said:
Or bigger collets as well for that matter.
Click to expand...

I think ER20 only goes to 13mm (just over 1/2). So you wouldn't have to get very many. However, you can get an ER25 collet holder from Vevor that fits the 13A/B. It's biggest size is 16mm (0.630". So I'd go that way if I wanted bigger. I wish I knew that when I ordered cuz I can't get free shipping with that.

Canadium said:
What is the limit/limiting factor in size of drill bit the Vevor can handle assuming we can add larger collet sizes???
Click to expand...

The stone size. I don't know if the stone can handle a blade that wide (16mm). It is certainly close.

I think the small size is going to be limited by how well you can align the blade. With our crummy eyes, I think we are SOL below 1/8 - even with a magnifying glass. But that's just a guess.
 
Susquatch said:
Yes, I know that and I agree.

What made this so different is two things.

1. Next day delivery when only next week was promised, and

2. Delivery in an old rusty minivan instead of a brown UPS truck.

I've never had either one before.
Click to expand...
They are sub-contracting due to the increased volume of the holiday and CP strike.
 
Susquatch said:
It doesn't feel like a copy. It feels amazing for the money.



This is an interesting question.

The design of the Vevor collet holder is such that you can see both ends of the collet as you close it down. I used a 6mm collet to evaluate it because I have a lot of dull 1/4 inch drills I need to sharpen. I think I should be able to see the difference between what the Vevor does and what my two drill doctors do.

When I closed the collet, I couldn't help but notice that the collet didn't close as uniformly as I expected it to. At the risk of raising the ire of all the other ER fans among us, I am now thinking that ER Collets are not as good as we all think they are...... 5C might be much better because it can't be closed unevenly. I plan to investigate this further later on.

In the meantime, I can't help but believe that finer collet size increments might improve this.



Absolutely. If you can afford it then why not.

In my case I already have an imperial set of collets with 1/16 increments so I don't have to buy anything.



I think ER20 only goes to 13mm (just over 1/2). So you wouldn't have to get very many. However, you can get an ER25 collet holder from Vevor that fits the 13A/B. It's biggest size is 16mm (0.630". So I'd go that way if I wanted bigger. I wish I knew that when I ordered cuz I can't get free shipping with that.



The stone size. I don't know if the stone can handle a blade that wide 16mm wide. It is certainly close.

I think the small size is going to be limited by how well you can align the blade. With our crummy eyes, I think we are SOL below 1/8 - even with a magnifying glass. But that's just a guess.
Click to expand...
I am now pissed a bit because the seller says er25 chuck up to 20mm but the collet only goes up to 16mm as you say. Hard to pass that off as a translation error.

These machines are all produced in the same factory by the same company. They just do a lot of private label work. I've seen too many videos of product to believe otherwise now.

There is a model MR-26A Drill Bit Grinder that uses ER40 collets and grinds 13mm thru 26mm drill bits.

There is a model MR-G3 that has ER20 collets on the left, and ER40 collets on the right to sharpen from 3mm thru 26mm! It is expensive.

I can buy an ER40 collet chuck and 6 collets, if they'd just sell the ER40 grinding seat I'm sure I could make my own grinder cheap.
 
The design of the Vevor collet holder is such that you can see both ends of the collet as you close it down. I used a 6mm collet to evaluate it because I have a lot of dull 1/4 inch drills I need to sharpen. I think I should be able to see the difference between what the Vevor does and what my two drill doctors do.
Click to expand...
6mm=.23622, a 'far' cry from .25". you can clamp down with an ER, but you should never expand it. In your case a real .25 ER collet or a 6.5mm one would be best.
 
Canadium said:
I was fascinated by Stephan's video because it raised numerous points/questions in my mind. First of all I bet the Vevor machines are yet another Chinese copy, in this case of the Motom. Secondly if the Motom comes with fractional metric collets (every 0.5mm instead of every mm) would it be advantageous to add the fractional metric collets to the Vevor gear? Thirdly the Motom comes with collets smaller than 3mm altho Stephan says these are a stretch in the machines capability. Should I get smaller collets to extend the capability of the Vevor? (I have a lot of old small bits.) Or bigger collets as well for that matter. What is the limit/limiting factor in size of drill bit the Vevor can handle assuming we can add larger collet sizes???
Click to expand...
For small drills you need something like this: https://3dladnik.wixsite.com/workshop/wishbon-2?lang=en. Another one without Pay-to-Look: https://www.thingiverse.com/thing:5849174
I can try to remember to bring a few examples to the next HMEC meeting
 
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TorontoBuilder said:
I am now pissed a bit because the seller says er25 chuck up to 20mm but the collet only goes up to 16mm as you say. Hard to pass that off as a translation error.

These machines are all produced in the same factory by the same company. They just do a lot of private label work. I've seen too many videos of product to believe otherwise now.

There is a model MR-26A Drill Bit Grinder that uses ER40 collets and grinds 13mm thru 26mm drill bits.

There is a model MR-G3 that has ER20 collets on the left, and ER40 collets on the right to sharpen from 3mm thru 26mm! It is expensive.

I can buy an ER40 collet chuck and 6 collets, if they'd just sell the ER40 grinding seat I'm sure I could make my own grinder cheap.
Click to expand...
Is it possible to mount a thicker stone on the 13A/B models together with bigger collets ie modify for bigger drill bits??? Maybe this question belongs more in the other half of this thread but the question follows from the previous point here?
 
TorontoBuilder said:
I am now pissed a bit because the seller says er25 chuck up to 20mm but the collet only goes up to 16mm as you say. Hard to pass that off as a translation error.

These machines are all produced in the same factory by the same company. They just do a lot of private label work. I've seen too many videos of product to believe otherwise now.

There is a model MR-26A Drill Bit Grinder that uses ER40 collets and grinds 13mm thru 26mm drill bits.

There is a model MR-G3 that has ER20 collets on the left, and ER40 collets on the right to sharpen from 3mm thru 26mm! It is expensive.

I can buy an ER40 collet chuck and 6 collets, if they'd just sell the ER40 grinding seat I'm sure I could make my own grinder cheap.
Click to expand...

Sorry, I figured out what the difference is. They are INVERSE ER collets, with clamping on the narrow end and different capacity from the normal ER collet ranges.

I haven't seen inverse ER collets anywhere else
 
Canadium said:
Is it possible to mount a thicker stone on the 13A/B models together with bigger collets ie modify for bigger drill bits??? Maybe this question belongs more in the other half of this thread but the question follows from the previous point here?
Click to expand...
I do not believe that there is a need to mount a wider wheel up to 20mm.

Beyond that you need a larger machine, because the ER40 machines use a 200mm diameter wheel that is 20mm thick.
 
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