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drills-- air or electric micromotor?
drills-- air or electric micromotor?
I must confess; I'm actually using this for soft stone carving, for
the finest details where a chisel would just be foolhardy. Hech, not
all that different from bone really-- more brittle, and granular, but
about the same hardness.
So-- it strikes me that dental tools both must be held to higher
standards, and are more ubiquitous, so I'm more likely to find a good
deal on a used one besides.
Do you prefer air or electric micromotor drills?
I've got a shop-duty compressor w/ regulator, standard 1/4"
fittings-- is this what a dental drill operates on, or at least, can
it easily be made compatible? I don't care about dehydrated air of
course, not going in cold-sensitive mouths, so long as the drill runs
on a standard compressor for carving purposes? Intrigued by the fiber
optics that seem to be in some air drills, might help lighting in the
tight undercuts too; not sure what that would cost.
I ask mostly because I've seen two holes on some of the drills; is one
for intake and the other just left open for the air going out--
nothing requiring an exotic specialized compressor?
Now on the subject of micromotors. I can pay $375 or maybe a bit less
for a woodcarving setup by RAM, or I can spend $1000 on a new dental
drill, or perhaps $250 for a new chinese ebay dental micromotor. I'd
like your opinion on any of these options, but most important really--
is the micromotor better than the air drill? More torque, smoother,
quieter, bearing quality (I'll be putting a fair bit of side load on
the burrs) questions like that.
thanks!!
-Bernard Arnest
I must confess; I'm actually using this for soft stone carving, for
the finest details where a chisel would just be foolhardy. Hech, not
all that different from bone really-- more brittle, and granular, but
about the same hardness.
So-- it strikes me that dental tools both must be held to higher
standards, and are more ubiquitous, so I'm more likely to find a good
deal on a used one besides.
Do you prefer air or electric micromotor drills?
I've got a shop-duty compressor w/ regulator, standard 1/4"
fittings-- is this what a dental drill operates on, or at least, can
it easily be made compatible? I don't care about dehydrated air of
course, not going in cold-sensitive mouths, so long as the drill runs
on a standard compressor for carving purposes? Intrigued by the fiber
optics that seem to be in some air drills, might help lighting in the
tight undercuts too; not sure what that would cost.
I ask mostly because I've seen two holes on some of the drills; is one
for intake and the other just left open for the air going out--
nothing requiring an exotic specialized compressor?
Now on the subject of micromotors. I can pay $375 or maybe a bit less
for a woodcarving setup by RAM, or I can spend $1000 on a new dental
drill, or perhaps $250 for a new chinese ebay dental micromotor. I'd
like your opinion on any of these options, but most important really--
is the micromotor better than the air drill? More torque, smoother,
quieter, bearing quality (I'll be putting a fair bit of side load on
the burrs) questions like that.
thanks!!
-Bernard Arnest
Re: drills-- air or electric micromotor?
Btw, I haven't seen the exact equivalent in dentistry (as compared to
micromotors, where they can look *identical* between dental or
woodworking brandings)-- but do you have any opinion on the
turbocarver, foredom 350, powercarver, or powercrafter? They're all
the same, I'm not asking for a brand comparison (just giving a list
for the google search to find what I'm talking about). But how do you
think a 350 or 400k rpm air tool compares to the 50k rpm dental air or
electric tools? Have you used one? Higher rpms isn't necessarily
good, risks of overheating and necessarily even smaller bits comes to
mind; but I won't really know until I get my hands on one of each of
the tools I'm comparing, and that won't happen unless I have the money
to buy them all!
OH-- one last option. Antique dental drills, not sure if they were
even used beyond the '30s or '40s, with the three arms and the belt-
driven handpiece. Thoughts?
thanks!
-Bernard
Btw, I haven't seen the exact equivalent in dentistry (as compared to
micromotors, where they can look *identical* between dental or
woodworking brandings)-- but do you have any opinion on the
turbocarver, foredom 350, powercarver, or powercrafter? They're all
the same, I'm not asking for a brand comparison (just giving a list
for the google search to find what I'm talking about). But how do you
think a 350 or 400k rpm air tool compares to the 50k rpm dental air or
electric tools? Have you used one? Higher rpms isn't necessarily
good, risks of overheating and necessarily even smaller bits comes to
mind; but I won't really know until I get my hands on one of each of
the tools I'm comparing, and that won't happen unless I have the money
to buy them all!
OH-- one last option. Antique dental drills, not sure if they were
even used beyond the '30s or '40s, with the three arms and the belt-
driven handpiece. Thoughts?
thanks!
-Bernard
Re: drills-- air or electric micromotor?
The high speed handpieces (300+K) used in dentistry have
very little torque, and would likely stall in your application.
As Amatus pointed out, these need very clean, filtered,
and dried air to operate without trashing the turbine in short order.
A nice flex shaft Dremmel tool or equivalent would likely
deliver all the torque that you need, and handle much
like a dental low speed (20-50K).
An electric 'laboratory' straight handpiece may be another
alternative. Probably more expensive than the Dremmel.
On Wed, 19 Mar 2008 03:14:48 -0700 (PDT), Bernard Arnest
<BerniniCaCO3@gmail,com > wrote:
>Btw, I haven't seen the exact equivalent in dentistry (as compared to
>micromotors, where they can look *identical* between dental or
>woodworking brandings)-- but do you have any opinion on the
>turbocarver, foredom 350, powercarver, or powercrafter? They're all
>the same, I'm not asking for a brand comparison (just giving a list
>for the google search to find what I'm talking about). But how do you
>think a 350 or 400k rpm air tool compares to the 50k rpm dental air or
>electric tools? Have you used one? Higher rpms isn't necessarily
>good, risks of overheating and necessarily even smaller bits comes to
>mind; but I won't really know until I get my hands on one of each of
>the tools I'm comparing, and that won't happen unless I have the money
>to buy them all!
>
>OH-- one last option. Antique dental drills, not sure if they were
>even used beyond the '30s or '40s, with the three arms and the belt-
>driven handpiece. Thoughts?
>
Often called a 'jack rabbit' or dental engine.
If you overtorque one of these, the belt slips off
of the pulleys and you have to re-string it.
>
>thanks!
>-Bernard
The high speed handpieces (300+K) used in dentistry have
very little torque, and would likely stall in your application.
As Amatus pointed out, these need very clean, filtered,
and dried air to operate without trashing the turbine in short order.
A nice flex shaft Dremmel tool or equivalent would likely
deliver all the torque that you need, and handle much
like a dental low speed (20-50K).
An electric 'laboratory' straight handpiece may be another
alternative. Probably more expensive than the Dremmel.
On Wed, 19 Mar 2008 03:14:48 -0700 (PDT), Bernard Arnest
<BerniniCaCO3@gmail,com > wrote:
>Btw, I haven't seen the exact equivalent in dentistry (as compared to
>micromotors, where they can look *identical* between dental or
>woodworking brandings)-- but do you have any opinion on the
>turbocarver, foredom 350, powercarver, or powercrafter? They're all
>the same, I'm not asking for a brand comparison (just giving a list
>for the google search to find what I'm talking about). But how do you
>think a 350 or 400k rpm air tool compares to the 50k rpm dental air or
>electric tools? Have you used one? Higher rpms isn't necessarily
>good, risks of overheating and necessarily even smaller bits comes to
>mind; but I won't really know until I get my hands on one of each of
>the tools I'm comparing, and that won't happen unless I have the money
>to buy them all!
>
>OH-- one last option. Antique dental drills, not sure if they were
>even used beyond the '30s or '40s, with the three arms and the belt-
>driven handpiece. Thoughts?
>
Often called a 'jack rabbit' or dental engine.
If you overtorque one of these, the belt slips off
of the pulleys and you have to re-string it.
>
>thanks!
>-Bernard
Re: drills-- air or electric micromotor?
On Mar 22, 1:31 am, New...@bix.nex wrote:
> The high speed handpieces (300+K) used in dentistry have
> very little torque, and would likely stall in your application.
> As Amatus pointed out, these need very clean, filtered,
> and dried air to operate without trashing the turbine in short order.
I think he meant a pneumatic micromotor, not a high-speed airotor. But
these would need clean air as well. Perhaps if he's lucky he can find
a used dental compressor on ebay?
Regards,
George
On Mar 22, 1:31 am, New...@bix.nex wrote:
> The high speed handpieces (300+K) used in dentistry have
> very little torque, and would likely stall in your application.
> As Amatus pointed out, these need very clean, filtered,
> and dried air to operate without trashing the turbine in short order.
I think he meant a pneumatic micromotor, not a high-speed airotor. But
these would need clean air as well. Perhaps if he's lucky he can find
a used dental compressor on ebay?
Regards,
George
Re: drills-- air or electric micromotor?
You get more torque with an electric motor, so I would probably go for
an electric one. I never liked pneumatic micromotors. On the other
hand, the electric will be much more expensive.
Regards,
George
You get more torque with an electric motor, so I would probably go for
an electric one. I never liked pneumatic micromotors. On the other
hand, the electric will be much more expensive.
Regards,
George
Re: drills-- air or electric micromotor?
Air rotors need CLEAN filtered air. Much cleaner than your average shop
A/C.
"George" <chpetros@hotmail,com > wrote in message
news:84db3067-6bc7-42b9-ab68-5f536a539a88@8g2000hsu.googlegroups,com ...
> You get more torque with an electric motor, so I would probably go for
> an electric one. I never liked pneumatic micromotors. On the other
> hand, the electric will be much more expensive.
>
> Regards,
> George
Air rotors need CLEAN filtered air. Much cleaner than your average shop
A/C.
"George" <chpetros@hotmail,com > wrote in message
news:84db3067-6bc7-42b9-ab68-5f536a539a88@8g2000hsu.googlegroups,com ...
> You get more torque with an electric motor, so I would probably go for
> an electric one. I never liked pneumatic micromotors. On the other
> hand, the electric will be much more expensive.
>
> Regards,
> George
Re: drills-- air or electric micromotor?
An Air Conditioned shop ? What a concept !
Great idea !
On Fri, 21 Mar 2008 16:04:34 -0400, "Amatus Cremona"
<arcus@martole.e.,com > wrote:
>Air rotors need CLEAN filtered air. Much cleaner than your average shop
>A/C.
>
>
>
>"George" <chpetros@hotmail,com > wrote in message
>news:84db3067-6bc7-42b9-ab68-5f536a539a88@8g2000hsu.googlegroups,com ...
>> You get more torque with an electric motor, so I would probably go for
>> an electric one. I never liked pneumatic micromotors. On the other
>> hand, the electric will be much more expensive.
>>
>> Regards,
>> George
>
An Air Conditioned shop ? What a concept !
Great idea !
On Fri, 21 Mar 2008 16:04:34 -0400, "Amatus Cremona"
<arcus@martole.e.,com > wrote:
>Air rotors need CLEAN filtered air. Much cleaner than your average shop
>A/C.
>
>
>
>"George" <chpetros@hotmail,com > wrote in message
>news:84db3067-6bc7-42b9-ab68-5f536a539a88@8g2000hsu.googlegroups,com ...
>> You get more torque with an electric motor, so I would probably go for
>> an electric one. I never liked pneumatic micromotors. On the other
>> hand, the electric will be much more expensive.
>>
>> Regards,
>> George
>
Re: drills-- air or electric micromotor?
Intriguing questions, What type of stone are you carving ?
Do you carve much bone ?
Fiber optics are kewl and do add some cost.
See my response to your other missive.
On Wed, 19 Mar 2008 03:10:12 -0700 (PDT), Bernard Arnest
<BerniniCaCO3@gmail,com > wrote:
>I must confess; I'm actually using this for soft stone carving, for
>the finest details where a chisel would just be foolhardy. Hech, not
>all that different from bone really-- more brittle, and granular, but
>about the same hardness.
>
>So-- it strikes me that dental tools both must be held to higher
>standards, and are more ubiquitous, so I'm more likely to find a good
>deal on a used one besides.
>
>Do you prefer air or electric micromotor drills?
>I've got a shop-duty compressor w/ regulator, standard 1/4"
>fittings-- is this what a dental drill operates on, or at least, can
>it easily be made compatible? I don't care about dehydrated air of
>course, not going in cold-sensitive mouths, so long as the drill runs
>on a standard compressor for carving purposes? Intrigued by the fiber
>optics that seem to be in some air drills, might help lighting in the
>tight undercuts too; not sure what that would cost.
>I ask mostly because I've seen two holes on some of the drills; is one
>for intake and the other just left open for the air going out--
>nothing requiring an exotic specialized compressor?
There are 2, 3, 4 hole set ups, each requires the appropriate
female connector. For fiber optics the set up is generally 5 or 7
and requires a specific coupler and a light/electrical source.
The shop compressor is going to be problematic, and remember
dental handpieces are run using a foot controller to control the air
pressure.. You would likely need a mini-dental unit, but those are
available. You can't just run these instruments 'wide open' all the
time.
>
>Now on the subject of micromotors. I can pay $375 or maybe a bit less
>for a woodcarving setup by RAM, or I can spend $1000 on a new dental
>drill, or perhaps $250 for a new chinese ebay dental micromotor. I'd
>like your opinion on any of these options, but most important really--
>is the micromotor better than the air drill? More torque, smoother,
>quieter, bearing quality (I'll be putting a fair bit of side load on
>the burrs) questions like that.
>
>
>thanks!!
>-Bernard Arnest
Intriguing questions, What type of stone are you carving ?
Do you carve much bone ?
Fiber optics are kewl and do add some cost.
See my response to your other missive.
On Wed, 19 Mar 2008 03:10:12 -0700 (PDT), Bernard Arnest
<BerniniCaCO3@gmail,com > wrote:
>I must confess; I'm actually using this for soft stone carving, for
>the finest details where a chisel would just be foolhardy. Hech, not
>all that different from bone really-- more brittle, and granular, but
>about the same hardness.
>
>So-- it strikes me that dental tools both must be held to higher
>standards, and are more ubiquitous, so I'm more likely to find a good
>deal on a used one besides.
>
>Do you prefer air or electric micromotor drills?
>I've got a shop-duty compressor w/ regulator, standard 1/4"
>fittings-- is this what a dental drill operates on, or at least, can
>it easily be made compatible? I don't care about dehydrated air of
>course, not going in cold-sensitive mouths, so long as the drill runs
>on a standard compressor for carving purposes? Intrigued by the fiber
>optics that seem to be in some air drills, might help lighting in the
>tight undercuts too; not sure what that would cost.
>I ask mostly because I've seen two holes on some of the drills; is one
>for intake and the other just left open for the air going out--
>nothing requiring an exotic specialized compressor?
There are 2, 3, 4 hole set ups, each requires the appropriate
female connector. For fiber optics the set up is generally 5 or 7
and requires a specific coupler and a light/electrical source.
The shop compressor is going to be problematic, and remember
dental handpieces are run using a foot controller to control the air
pressure.. You would likely need a mini-dental unit, but those are
available. You can't just run these instruments 'wide open' all the
time.
>
>Now on the subject of micromotors. I can pay $375 or maybe a bit less
>for a woodcarving setup by RAM, or I can spend $1000 on a new dental
>drill, or perhaps $250 for a new chinese ebay dental micromotor. I'd
>like your opinion on any of these options, but most important really--
>is the micromotor better than the air drill? More torque, smoother,
>quieter, bearing quality (I'll be putting a fair bit of side load on
>the burrs) questions like that.
>
>
>thanks!!
>-Bernard Arnest
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