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Masa Tool

breaking news

Microconic holds a Firm Grip without Damaging the Threads on Bone Screws

3/16/2022

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Microconic UM10 Collets regular, over-grip
Microconic standard collets on the left and over-grip collets on the right are ideal for machining bone screws in Swiss Style CNC Machines (UM10 Collet series shown here)
The  standard Microconic collets will  help with bone screws and other bone implants by allowing a firm grip on the threaded exterior without causing damage, and yet holding it so much more rigidly that they will be able to do heavy operations in the sub spindle. This includes operations like blind hole broaching. 

Set ups are quicker and more repeatable with Microconic. With the Microgram Dial Wrench You can document the micrometer-adjust collet closure in your set up plan so it's done the same every time, regardless of operator skill and without relying on "feel".
​Calibrate spindle accuracy with the Microconic cartridge as a precision cylinder gauge. When that is good, EVERY Microconic collet will run within .0002" TIR -- no fiddling and swapping collet after collet looking for a "good" one. Set ups go smoothly and predictably.

Included with each cartridge, the MicrogradTM Dial Wrench is a dual-purpose tool used to install and adjust the collet in the cartridge. With dial graduations in either .02mm or .001-inch increments, the closure of the Microconic collet can be set with calibrated precision using a common pin gage the diameter of the work piece.​
Micrograd Face Dial Wrench inch metric swiss machine clamping pressure
Micrograd Dial Wrench with dial graduations in either .02mm or .001-inch increments. Shown here are the Dial Wrenches for UM10 and the UM5 collet series.
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​Masa Expands Offering of Microconic Over-Grip Collets with New Long-Land T-type Series.

2/13/2018

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OCEANSIDE, CA.  Masa Tool has expanded their line of Microconic over-grip collets to include a new style called a "T-type."  The T-type over-grip collet has a longer gripping surface than the original W-type. We designed it specifically for longer parts such as bone screws with wide pitch threads.
The Microconic  over-grip collets provide more work holding and programming options than previously available. It enables you to move operations from the main spindle to the sub-spindle. This balances the work being performed between the main and sub time which can dramatically reduce cycle time.  

​The land width on the W-type over-grip collet, pictured at the right,  is approximately 1 X Diameter of the workpiece. 
Micorconic W-Type Overgrip Collet
The Microconic W-type over-grip collet can swallow up to 4mm over the held diameter
But,  in some cases, with longer parts, the land width "B" needs to be longer to support the workpiece properly.
​

Masa's new T-type collet provides the solution for longer workpieces

Typically with over-gripping applications, a shorter land length/clamping pad length/grip length is desired because of limited space available to hold the workpiece behind the enlarged head or flange that it is reaching over. That is what our original W-type collet was optimized for.

However, with longer parts, with more surface area for clamping and gripping room, a longer land length is often preferred to provide more stability to support the longer length workpiece.
​It may also be necessary with very wide-pitched threads, such as on bone screws, where a long land in the collet allows spanning several thread pitches instead of just one or two. This same spanning issue can occur with parts that have wide grooves.

The  new "T-type" over-grip collet,  has a longer gripping surface than our original W-type: Typically 2 - 3 times the diameter of the workpiece.

​For extra long parts, the T-type collet provides the opening needed for the larger head to pass through the collet, so it can be pushed through the back end of the spindle for ejection when required.
Microconic T Type Overgrip 2-3X Land width
The Microconic T-type over-grip collet provides 2 -3 times the land width "B" of the W-type over-grip collet to support longer parts.

Microconic T-Type Over-grip Collet features

  • Standard gripping land length is 2x - 3x diameter. (vs. about 1x diameter with W-type)
  • Available from Ø1.55 - 7.2mm (Ø.061" - .283"). 
  • Opens 3.5mm diameter (.138") larger than the clamping diameter. (vs. 4mm larger with W-type).
  • Every size available to ship within 2 days of order.
  • Same Microconic accuracy and rigidity.
Typical uses are generally for over-gripping of longer parts:
  • Bone screws with wide-pitch threads
  • Orthopedic surgical drills and taps
  • Long shafts with flange
  • Long, thin walled tubular parts
  • Long plastic parts
Microconic T-Type Long Land Overgrip collets
Masa Microconic Overgrip Collets: W-type (upper) & T-type (lower)
If you've tried other companies overgrip collets with poor results, Microconic over-grip collets  will allow you to do things you might have thought impossible!

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Everything you wanted to know about the Microconic #Workholding System

10/11/2016

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Matt Saccomanno, the inventor of the Microconic Workholding system discussed how it works at IMTS 2016.  

Masa Tool has developed the Microconic™ system specifically for holding workpieces from Ø0.15mm to 10mm (Ø0.006" to 0.390") in any machine that has a collet-type chuck.

The system consists of two major components: The Microconic™ cartridge, which fits into your CNC machine spindle replacing the standard 5C, TF20 or TF25 collets, and the Microconic™ collet, which fits in the Microconic™ cartridge. 

The Microconic™ system has unsurpassed concentricity: Our manufacturing tolerance is 3µm (.0001") and we guarantee our cartridges to be within 5µm (0.0002") in production use in your machine.

The Microconic™ system works with either draw-type or push-type standard collet systems that are in any machine.

​The Over-grip collet capabilities of Masa Microconic™ System, introduces a whole new world of time saving opportunities awaiting. Our Overgrip Collets open up to 4mm (0.157") diameter larger than the clamping diameter.
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IMTS 2016 was Incredible!

9/29/2016

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IMTS 2015 Microconic Workholding
Our first IMTS show was a tremendous success!  We got to meet many many new customers and where very pleasantly surprised by all the industry media people who stopped by to visit us at the show.  We had an awful lot of people comment on the "Game Changing Workholding for Small Parts" by asking us "What's so game changing?"  After they learned about the entire Microconic system we often heard them say "Wow! This is REALLY a game changer!!"
On Sunday, we where interviewed on IMTStv and had some time to talk to the great folks from AMT about our Microconic system technology and where heard from people that we where on the big screen throughout the show.  

​We're keeping an eye on YouTube to see it and we'll be sure to share it here when we find it. :-)

We really can't express enough thanks to the folks over at Citizen for using our Microconic system on their new L20 machine with low frequency vibration technology that was on display in their booth.  The application engineers sent quite a few people over to our booth once they saw it in the machine!
Microconic Gamechanging Workholding
On Thursday, Harry Moser from the Reshoring Initiative visited us and we talked about how our products where developed right from our experience on the shop and because of the machining that is done locally in the Oceanside area.  The video was posted live on our Facebook Page and you can find right here down below on the left.
​

Be sure to keep an eye our for some articles in some pretty big name magazines in the next few months.  We're now on the look out for some application stories for them based upon the success you've had with our product.  If you have a story to tell us be sure to leave it in the comments below or contact us so we can get all the details! 

Harry Moser form  the Reshoring Initiative visited us!
Some pictures from our IMTStv interview. It was a busy week meeting lots of new customers!

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Microconic Eliminates Collet Damage & Saves OVER $533 a Day!

6/16/2016

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The Chip Wrap Nightmare!
Superior Machined Products has decades of experience manufacturing implants, abutments, Multi fluted twist and spade drills, bone screws, analogs fixture mounts, all types of drivers and surgical tools

Superior brought in Masa Tool's Microconic F25M10 Cartridge and collets for use in sub spindle pickoff in producing dental implants.
Picture
Picture
Chip wrap on dental implant
According to Juan Maravilla at Superior Machined Products Before the Microconic System was installed 

​
"An experienced machinist would bore a TF25 sub spindle soft emergency collet  in the machine in order to achieve good concentricity.  5% of the parts would experience chip wrap around the chucking area of the implant."
 
​"Every time the collet would chuck on the parts with chip wrap, it would leave an impression in the collet.  Sometimes the chip would stay lodged in that impression and the parts run from that point on are scrapped due to the chip impressions on the part and once noticed, the collet would need to be replaced."

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Masa Tool Introduces the Microconic™ Over-grip Collet

5/20/2015

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Masa Tool has developed the Microconic™ system specifically for holding workpieces from Ø0.15mm to 10mm (Ø0.006" to 0.390") in any machine that has a collet-type chuck. The system consists of two major components: The Microconic™ cartridge, which fits into your CNC machine  spindle replacing the standard 5C, 16C, TF15, Tf16 TF20 , TF25 or TF37 collets, and the  Microconic™ collet, which fits in the Microconic™ cartridge.

Part  of the standard offering of Micrconic™ collets is the UM10W  Over-grip  series.  The UM10W over-grip series is offered in the coverage range  from Ø0.5mm - 7.2mm diameter (Ø0.020" - 0.283"). 
Picture
Microconic™ Overgrip Collet. A = Grip Ø, B = Largest Part Ø, G = Grip Land Width
Over-grip collets, also referred to as over-the-shoulder collets, are used in a pick-off /sub-spindle when it is required to clear a shoulder and grip on a smaller diameter beyond the larger diameter.  

​The Drill blank pictured at the left  is a good example of this kind part.

Extra spread is required to open the collet wide enough to go over the  larger diameter.  The grip diameter (A), the width of the grip land (B) and the largest part diameter to reach over (G) are required to choose the off-the-shelf over-grip collet for your specific part.

Microconic™ Over-grip collets are a great way to expand your CNC machine's capability and reduce cycle time.

The Problem
Generally, pick-off collets grip short part lengths that only occupy the front section of the bore. All of the clamping force is on the collet angle, which is a considerable distance from the part being held. As a result the collet begins to collapse under the angle.

​At that point, the bore is no longer parallel and does not squarely grip the part. This usually results in the parts running eccentric and slipping in the collet.  At that point machine operators generally increase the clamping pressure in reaction to the runout. This eventually results in the premature failure of the collet.

Another problem that is peculiar to pick-off collets is that they are sometimes closed without a part in place. Having no internal resistance puts undue strain on the collet walls, which can contribute to premature collet failure.
Picture
Microconic Over-grip collet opens over bone screw thread to hold the workpiece on the shoulder.
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Machinable Brass ejection guide sleeve blank installed in the back of Microconic Over-grip collet
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Microconic UM10W Over-Grip collet
The Solution
  • Over-grip collets from Ø0.5mm - 7.2mm diameter (Ø0.020" - 0.283"). 
  • Opens up to 4mm (0.157") diameter larger than the clamping diameter.  Some restrictions apply to larger sizes approaching the   7.2mm (0.283") max diameter
  • Grips with the same industry-best rigidity and accuracy as our standard collets.
  • Compatible with all Microconic M10 cartridges: F20M10, F25M10, 5CM10 & 16CM10.
  • Fatigue tested design to over 250,000 full-load cycles.
  • Microject™ Brass ejection guide sleeve blank is included with each Microconic™ over-grip collet.
  • All sizes available to ship in 2 days.
  • Reduce part cycle time by moving operations to the sub spindle that you might currently be performing in the main spindle.
Picture
Microconic™ Overgrip Collet. A = Grip Ø, B = Recessed Part Ø, G = Grip Land Width
Picture
Microconic Overgrip collet installed in F20M10 Cartridge with a typical medical part produced using the Over-grip collet
Picture
Microconic Overgrip collet and Microconic F25M10 cartridge installed in the sub spindle with standard extended nose capability.
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tel: 760.732.1422     
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