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Ice Screw Sharpening
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rocknice2


Mar 22, 2012, 11:16 AM
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Ice Screw Sharpening
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All Ice Climbers
I'm sharpening ice screws with an aggressive tooth profile. I can also convert your old style BD's to new style. Grivel, Petzl, Omega and DMM can also be sharpened to an aggressive tooth profile.
A 4-axis CNC milling machine is used and the results are fantastic. The screws come out very sharp.
Twice a year, I collect all screws by a certain date and then run them all off as a single batch run. I keep everyone's screws separate of coarse
It's too expensive to run a CNC machine for a dozen screws so this is the only way to keep costs down.

Next Batch Run: APRIL 27 2012

Check out my website for more details
https://sites.google.com/.../icescrewsharpening/

Super Stubbies too.
https://sites.google.com/...ng/home/super-stubby

I have been sharpening screws now for the public for a year now and 3 years for myself.


rocknice2


Apr 3, 2012, 6:34 PM
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Re: [rocknice2] Ice Screw Sharpening [In reply to]
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Here are some pics
Ice Screws 10-22cm aggressive tooth

#5 Super Stubby [aprox 6.2cm]


rocknice2


Sep 11, 2012, 6:47 PM
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Re: [rocknice2] Ice Screw Sharpening [In reply to]
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Just a reminder that there is about 30 day left before the deadline for the next batch of ice screw sharpening.

Friday October 19 2012


rocknice2


Mar 27, 2013, 10:23 AM
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Re: [rocknice2] Ice Screw Sharpening [In reply to]
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Just a reminder that there is less than 30 days left before the deadline for the next batch of ice screw sharpening.

Friday April 19 2013

http://www.icescrewsharpening.com/

https://www.facebook.com/...ning/478933888835729


rocknice2


Oct 8, 2013, 11:15 AM
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Re: [rocknice2] Ice Screw Sharpening [In reply to]
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Just a reminder that there is about 2 weeks left before the deadline for the next batch of ice screw sharpening.

Friday October 25 2013

http://www.icescrewsharpening.com/
https://www.facebook.com/...ning/478933888835729



(This post was edited by rocknice2 on Oct 8, 2013, 11:18 AM)


majid_sabet


Oct 9, 2013, 9:42 PM
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Re: [rocknice2] Ice Screw Sharpening [In reply to]
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send me your G code


rocknice2


Oct 10, 2013, 6:16 AM
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Re: [majid_sabet] Ice Screw Sharpening [In reply to]
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Are you telling me you can't figure it out on your own.
I'm on rev9.1 now. There was a whole bunch of fiddling with the angles and different endmills to get the desired undercuts and face angles.
But the program below will cut 4 teeth on a screw

Can you figure out how I'm holding the part. Most importantly how I'm able to clamp every screw with the teeth orientated on exactly the same A and X axis? Without spending 10 minutes to calibrate the geometry offsets for each and every screw. That's the hard part actually, not that the program was easy to polish.

Program for a 4 axis milling center. A-Axis rotates around the X-Axis
%
:1 (ICE SCREW REV1)
(A-ZERO = TIP ON CENTERLINE)
(X-ZERO = TIP OF SCREW)
(Y-ZERO = CENTER OF SCREW)
(Z-ZERO = OD OF SCREW)
(OFFSET FIXTURE X-.03" A-3.5)
L100 (RUFF)
G0 A5.
X.125 Y0
G1 X-.275 A-15. F100.
X.125 A85. F200.
G0 X.25
M17

L200 (FINN)
G0 A90.
X.125 Y0
G1 X-.28 A-20. F500.
X.125 A0 F200.
G0 X.25
M17
M30

T1 (ENDMILL)
G17 G90 G0 X.25 Y0 A0 S1000 M3 E1
Z-.2 H1 M8
L101
G52 A90.
L101
G52 A180.
L101
G52 A270.
L101
(FINN PASS)
S2500
L201
G52 A180.
L201
G52 A90.
L201
G52 A0
L201
G52 A0 M5 M9
G53 Z0
X0 Y10. Z0 E0 H0 A0
M30
%

Good Luck


rocknice2


Mar 24, 2014, 6:27 PM
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Just a reminder that there is about 4 weeks left before the deadline for the next batch of ice screw sharpening.

Friday April 18 2014

http://www.icescrewsharpening.com/
https://www.facebook.com/...ning/478933888835729


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