Re: Hand-sharpening drill bits
Having a hard bolt break off in an automotive chassis application I knew it would be a problem. After making a guide bushing and clamping it in place I resharpened a masonry?drill left?handed. Running te drill in reverse and guided by the bushing I drilled through the bolt until?it grabbed and unscrewed the remains. Other methods have led to disasters!
On Tue, Aug 6, 2024 at 12:35?PM davesmith1800 via <davesmith1= [email protected]> wrote: On Tue, Aug 6, 2024 at 11:13 AM, Mark Kimball wrote:
I just ordered a Vevor drill sharpener as a birthday present for myself.? Lots of dull drill bits to work on.
?
Mark
?
Great way to lean
?
Dave?
?
?
|
Re: Hand-sharpening drill bits
On Tue, Aug 6, 2024 at 11:13 AM, Mark Kimball wrote:
I just ordered a Vevor drill sharpener as a birthday present for myself.? Lots of dull drill bits to work on.
?
Mark
?
Great way to lean
?
Dave?
?
?
|
Re: Hand-sharpening drill bits
I just ordered a Vevor drill sharpener as a birthday present for myself.? Lots of dull drill bits to work on.
?
Mark
?
|
Re: Hand-sharpening drill bits
I have a drill doctor 750x.? Uses a diamond wheel.? But most of my are high speed.? I need borazon.
So I found this at Travers -
There's a lot of knock offs online... It splits, adjusts from 85 to 140 degree and you can get CBN wheels for it as well as other parts:
And they have one for up to 1" bits.? A bit pricey but worth it.
And as I mentioned you can find knock offs
Grizzly -
$230 - and again its a CBN wheel
Amazon - $269 with both diamond and CBN
The big one is only $580
toggle quoted message
Show quoted text
On 8/6/2024 9:45 AM, ram50v8efi via groups.io wrote: I hand sharpen my larger bits and custom bits. For many years I have had 2 drill doctors, one is set up to handle up to 3.4" and left hand bits. However my go to is my Grizzly H8203 that I acquired at the tent sale for $40 several years back. It was new, never used other than plugged in and it did not work (hence why i got it so cheap) The problem was a broken wire at the fuse holder. I do love a deal!
|
Re: Hand-sharpening drill bits
I hand sharpen my larger bits and custom bits. For many years I have had 2 drill doctors, one is set up to handle up to 3.4" and left hand bits. However my go to is my Grizzly H8203 that I acquired at the tent sale for $40 several years back. It was new, never used other than plugged in and it did not work (hence why i got it so cheap) The problem was a broken wire at the fuse holder. I do love a deal!
|
Re: Hand-sharpening drill bits
??? I've had one of teh older 75 or maybe 750 Drill Dr that does
up to 3/4 bits , I loved when I forst got it . Paid for itself @
20 times that first week . I started getting? disillusioned with
it a few years back . A couple months ago I found a brand new
wheel for it , I'm back to happy with it .
animal
On 8/5/24 7:47 PM, davesmith1800 wrote:
toggle quoted message
Show quoted text
I agree The drill doctor is great
?
I given a drill doctor but donate becauseI I did not use the
drill doctor I was use to using a 6" bench grinder. On large
drilled a angle grinder.?
Most would never sharpen the numbers I did for father.?
I would very handy tool when first learning?
?
Dave?
?
?
On Mon, Aug 5, 2024 at 01:10 PM, Arthur Coe wrote:
?
Concur on the Drill Dr..?
But when you've got bigger than 1/2 inch .......
?
On Monday, August 5, 2024 at 12:52:26 PM PDT,
chrisser via groups.io
<chris.kucia@...> wrote: ?
?
Good to know.
?
That said, they
can pry my Drill Doctor from my cold dead hands
before I'll let it go.
?
On
Monday, August 5th, 2024 at 3:47 PM, Mark Rages
<markrages@...> wrote:
This video is an excellent description of
the technique:
Regards,
Mark
markrages@gmail
|
Re: Hand-sharpening drill bits
I agree The drill doctor is great
?
I given a drill doctor but donate becauseI I did not use the drill doctor I was use to using a 6" bench grinder. On large drilled a angle grinder.?
Most would never sharpen the numbers I did for father.?
I would very handy tool when first learning?
?
Dave?
?
?
On Mon, Aug 5, 2024 at 01:10 PM, Arthur Coe wrote:
?
Concur on the Drill Dr..? But when you've got bigger than 1/2 inch .......
?
On Monday, August 5, 2024 at 12:52:26 PM PDT, chrisser via groups.io <chris.kucia@...> wrote:
?
?
Good to know.
?
That said, they can pry my Drill Doctor from my cold dead hands before I'll let it go.
?
On Monday, August 5th, 2024 at 3:47 PM, Mark Rages <markrages@...> wrote:
This video is an excellent description of the technique:
Regards,
Mark
markrages@gmail
|
Re: Hand-sharpening drill bits
On Mon, 5 Aug 2024, Arthur Coe wrote: Concur on the Drill Dr..? But when you've got bigger than 1/2 inch .......
On Monday, August 5, 2024 at 12:52:26 PM PDT, chrisser via groups.io <chris.kucia@...> wrote:
Good to know.
That said, they can pry my Drill Doctor from my cold dead hands before I'll let it go.
On Monday, August 5th, 2024 at 3:47 PM, Mark Rages <markrages@...> wrote:
This video is an excellent description of the technique:
Regards,
Mark
markrages@gmail i have an extra 750x i would like to get rid of i inherited it from someone
|
Re: Hand-sharpening drill bits
Concur on the Drill Dr..? But when you've got bigger than 1/2 inch .......
On Monday, August 5, 2024 at 12:52:26 PM PDT, chrisser via groups.io <chris.kucia@...> wrote:
Good to know.
That said, they can pry my Drill Doctor from my cold dead hands before I'll let it go.
On Monday, August 5th, 2024 at 3:47 PM, Mark Rages <markrages@...> wrote:
This video is an excellent description of the technique:
Regards,
Mark
markrages@gmail
|
Re: Hand-sharpening drill bits
Good to know.
That said, they can pry my Drill Doctor from my cold dead hands before I'll let it go.
On Monday, August 5th, 2024 at 3:47 PM, Mark Rages <markrages@...> wrote:
This video is an excellent description of the technique:
Regards,
Mark
markrages@gmail
|
Hand-sharpening drill bits
This video is an excellent description of the technique:
Regards,
Mark
markrages@gmail
|
Re: Cross slide modifications
??? Thanks , looks like I got more reading to do .
??? thanks for sharing
??? animal
On 8/4/24 3:01 PM, Colin Spencer wrote:
toggle quoted message
Show quoted text
Hi I have two one a portable one that I take for club demos
and the second much heavier duty that stays in my workshop.
?
?
The one on the left is the portable one. There are more
photos and information on my .
--
Colin Spencer
Attachments:
|
Locked
Re: Maybe have day a week for off subject
Unlimited OT stuff was what killed the 7x10 group. It started out OK, but, eventually turned lethal.
?
Roy
|
Re: Cross slide modifications
Hi I have two one a portable one that I take for club demos and the second much heavier duty that stays in my workshop.
?
?
The one on the left is the portable one. There are more photos and information on my .
--
Colin Spencer
|
Re: Cross slide modifications
I have seen a couple of? Graduated 3D printed dials over on
Thingverse or some of the other hosting sites & I believe ya
can change the program o enlarge or shrink the hole to fit a lot
of applications . Could ya? please share a couple of pic's of the
Rose lathe ?
animal
On 8/4/24 5:01 AM, Colin Spencer wrote:
toggle quoted message
Show quoted text
I have the cross slide from a mini lathe mounted on my small
woodturning Rose Engine lathe. As this cross-slide is metric
and the current graduations on the compound hand-wheel are
only 0-39 rather than 0-10 with intermediate graduations I
decided to look for an alternative that allowed the resetting
of the graduated dial. I found this one on
At the time I bought it the cost was ?17 but I see that it
has since increased slightly in price. As the 8mm hole in the
centre of the new hand-wheel had a keyway slot in it and it
wasn't deep enough to used the mounting threads on the lead
screw I mounted it on my metal lathe and bored and reamed the
centre hole to 14mm. I then turned a T shaped steel spacer
with a M10 thread in the centre that I press fitted into the
14mm hole and used Loctite to keep it in place. I then used a
1mm thick brass washer to separate? the hand-wheel from the
mounting and used the conventional second nut to reduce the
backlash in the compound and to lock the hand-wheel in place.
The graduated dial is slightly larger than fixed base but for
my use I don't think that this will be an issue.
The cross-slide has a similar problem with the graduations
and I happened to have a larger ring with suitable graduations
on it but the centre bore was too large to fit. As a result I
left the existing small graduated ring in place and 3D printed
a spacer that grips the small ring tightly and has just enough
friction to retain the outer ring but to allow it to be moved
if necessary.
--
Colin Spencer
Attachments:
|
Locked
Re: Maybe have day a week for off subject
Please keep it on topic. From the group home page:
Topics Include: Homier, Grizzly, Harbor Freight, Real Bull, SIEG, Einhell,
Micromark brands of 7x10, 7x12, 7x14, 7x16, & 8x12 mini lathes,
metal turning, machinists, lathe and tooling mods, projects, tips, hints,
and tricks for the mini lathes plus other shop related topics.
On Sun, Aug 4, 2024 at 11:11?AM davesmith1800 via <davesmith1= [email protected]> wrote:
Group Guidelines is only on lathe itself.? Maybe if we Sunday off subject day for projects and other things.??
Groups that have off subject treads have great numbers and some time year? is only thread that getting post. It keep the group alive.
?
Dave?
--
Buffalo John
|
Locked
Maybe have day a week for off subject
Group Guidelines is only on lathe itself.? Maybe if we Sunday off subject day for projects and other things.??
Groups that have off subject treads have great numbers and some time year? is only thread that getting post. It keep the group alive.
?
Dave?
?
|
Re: Cross slide modifications
|
Cross slide modifications
I have the cross slide from a mini lathe mounted on my small woodturning Rose Engine lathe. As this cross-slide is metric and the current graduations on the compound hand-wheel are only 0-39 rather than 0-10 with intermediate graduations I decided to look for an alternative that allowed the resetting of the graduated dial. I found this one on
  
At the time I bought it the cost was ?17 but I see that it has since increased slightly in price. As the 8mm hole in the centre of the new hand-wheel had a keyway slot in it and it wasn't deep enough to used the mounting threads on the lead screw I mounted it on my metal lathe and bored and reamed the centre hole to 14mm. I then turned a T shaped steel spacer with a M10 thread in the centre that I press fitted into the 14mm hole and used Loctite to keep it in place. I then used a 1mm thick brass washer to separate? the hand-wheel from the mounting and used the conventional second nut to reduce the backlash in the compound and to lock the hand-wheel in place. The graduated dial is slightly larger than fixed base but for my use I don't think that this will be an issue.
The cross-slide has a similar problem with the graduations and I happened to have a larger ring with suitable graduations on it but the centre bore was too large to fit. As a result I left the existing small graduated ring in place and 3D printed a spacer that grips the small ring tightly and has just enough friction to retain the outer ring but to allow it to be moved if necessary.
--
Colin Spencer
|
Re: Mini lathe motor temperature
Update on temperature gauge working great.?
It has been pass 111°F? [44° c] In the workshop which can work in at temperature.?
?
The few time I use the lathe I found gauge goes 3°C to 5°C when working on lathe.?
?
Today it was 82°F when first started the lathe gauge read 27°C finished it was 30°C
?
Very happy I have recorded that temperature so know goes up from 10°C? it time to clean the motor.
The carbon from brushes are forming a resistor and starting the heat motor up.? It took research to find that happens. I only in old manuals.?
?
Dave?
|
davesmith1800
ram50v8efi
chrisser
Colin Spencer
BuffaloJohn