micromotor

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Nov 19, 2012
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Hungary
Thread starter #1

JJ Roberts

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#2
Csontmetszo,We engraver with H&C or power assist not NSK unless you want to get your self in trouble,one slip and you'll spend hours trying to fixing it if its fixable.Good luck. J.J.
 

WMS

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Jun 4, 2012
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#3
Perhaps this link might help http://www.ottofrei.com/Foredom-K-1070-Micromotor-Kit

As a jeweler I've used micromotors and will attest to the need for a light touch, however there high speed does move metal easily with that same light touch, and the right bur, cutting wheel or abrasive disk. Just watch the speed, as some bur, disks, wheels etc are not rated for the high speeds of a micromotors.
 
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John B.

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#5
Saeyang or Marathon brand. They make the micromotor for Foredom and others.

I agree. I have same thing but I got it from Gesswein. Sold as their ECO-Torque 280.
At a lot lower price than I see posted for the Foredom unit.
It's a good little rotary unit using 3/32 inch dental burs in their 3/32 inch collet.
 
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John B.

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#7
Csontmetszo,
Both the flex shaft and the micro motor have their place and different uses.
Some jobs are better for one than for the other.
What part of gun engraving do you plan to use it for?
Background removal or sculpturing or what?
 
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Holland
#8
Personally I find that the flex-shaft gets heavy after using for sometime. Because you have to push and pull the whole flex-shaft .

With the micromotor all the weight is in your hand. I have an NSK and it is really nice to work with when I practice my stone-setting.

Csontmetzo, look in other EU countries if they sell what you want and can send it to Hungary. Because Hungary has high tax, it might me cheaper to import.
 
Joined
Nov 19, 2012
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Hungary
Thread starter #11
Utahhandpiecerepair.com az, ahol el akar menni.

"NSK Presto II Handpiece – Rotary Tool for Engraving
The speed of air turbine tools allow you greater control compared to electric (slower) tools. "

Like. GRS G8 + JUN-AIR Compressor got it. You just have to connect.
Can this be the best tool for background removal ?
 

papart1

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#12
not for tight areas..if they are large......still have to really careful, one...........just one slip and you'll cry. pap
 

John B.

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#14
Csontmetszo, the air turbines are very fast but have almost no torque.
The electrics have much more torque at a slower RPM speed.
All rotary tools need a lot of PRACTICE AND CAREFUL use for background removal.
I find the electric best and use a 1/16 inch micro grind carbide bit shaped to nearly a triangular point. It cuts very fast and will get into everything but the tightest corners.
For these tight corners I use a knife graver or a carbide scribe to remove the metal.
I follow up by stippling all the areas that were removed by a rotary tool.
Anyway you do it background removal is a time consuming process.
 
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