CNC engine block vid - Chicagoland Sportbikes
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post #1 of 11 (permalink) Old 04-04-2007, 11:29 PM Thread Starter
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CNC engine block vid

One of those things that just blows my simple mind.

http://www.youtube.com/watch?v=QsmiIeAkE-o
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post #2 of 11 (permalink) Old 04-04-2007, 11:40 PM
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That is pretty sweet.

I'd hate to be programming that to run.

Funny thing though, F1 car engines still use sand molding for all their blocks, so I guess that is still stronger??
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post #3 of 11 (permalink) Old 04-04-2007, 11:44 PM
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Cool video, what's that milk- like substance they use to lube the metal called?

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post #4 of 11 (permalink) Old 04-04-2007, 11:54 PM
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I'd hate to be programming that to run.
no kiddin'
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post #5 of 11 (permalink) Old 04-05-2007, 12:15 AM Thread Starter
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Quote:
Originally Posted by Aussie Grover View Post
That is pretty sweet.

I'd hate to be programming that to run.

Funny thing though, F1 car engines still use sand molding for all their blocks, so I guess that is still stronger??
That might just have more to do with how often they replace motors, and the cost for a CNC'd block. F1 is all alien technology though, so I really have no clue.
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post #6 of 11 (permalink) Old 04-05-2007, 08:10 AM
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Cool video, what's that milk- like substance they use to lube the metal called?
Thats just a coolant. It helps reduce the heat build up in the work peice, which would result in distortion. It also helps flush away the metal chips.

CNC's are a real kick to watch. Especially intracite cutter patterns.

Creating the model, and then watching them appear in steel, is one of the rewarding parts of the process.

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post #7 of 11 (permalink) Old 04-05-2007, 08:10 AM
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MAM72-63V

Component sizes of up to 720 x H450mm (28.3 x H17.7 in.) can easily be accommodated by the MAM72-63V, our latest addition to our MAM72 range.

Max. Work Size 720 x H450 mm
(28.3 x H17.7 in.)
Max. Loading Capacity 400 kg
(880 lb.)
Table Size 500 mm
Travel:X/Y/Z 760 / 845 / 610 mm
(29.92/33.26/24.01 in


Cool vid but you never get a sense of scale/ size.
The limit for that type machine is the dia that fits the rotary table and trunion.
They had the tools hanging out pretty far so I am guessing it was well under the 17.700 Z limit.

The milky stuff was "coolant" and is typically a water soluble oil of some type.
These "demo" parts are painstaking engineered to give the most impressive performance so they probably used a aluminium specific fluid.

one of my projects
for a sense of size.. the machine will carry 40,000 lbs.
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Last edited by 5AXIS; 04-05-2007 at 08:14 AM.
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post #8 of 11 (permalink) Old 04-05-2007, 09:12 AM
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Cool Video !
what happens if the bit gets dull and starts gouging the metal ?
Is there something that watches for that ?

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post #9 of 11 (permalink) Old 04-05-2007, 09:27 AM
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Cool Video !
what happens if the bit gets dull and starts gouging the metal ?
Is there something that watches for that ?
Yup.. me or the like..

Many of the machines have the capability to sense spindle loads and vibration. When it reaches a threshhold it knows something is up and changes tools. I think that is more common in producton machining, where through repetition they get the process dialed in. In my kind of "one off" work it is much more hands on.


Keep in mind these demo things are well planned and tweaked in. They are trying to sell machines and showing the eff ups is counter productive

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post #10 of 11 (permalink) Old 04-05-2007, 09:52 AM
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Originally Posted by 5AXIS View Post
Keep in mind these demo things are well planned and tweaked in. They are trying to sell machines and showing the eff ups is counter productive
Nothing a little weld won't fix.

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post #11 of 11 (permalink) Old 04-05-2007, 10:07 AM
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Quote:
Originally Posted by 5AXIS View Post
Yup.. me or the like..

Many of the machines have the capability to sense spindle loads and vibration. When it reaches a threshhold it knows something is up and changes tools. I think that is more common in producton machining, where through repetition they get the process dialed in. In my kind of "one off" work it is much more hands on.
Yep, I used to work in this field and many of the machining centers we had were capable of detecting an increased load on the tool (at the spindle) and could either stop or change tools (if you had a back up in the magazine). They also had a flip up senor that would check the length of the tool and the end of the cycle (check that the drill had not broken off prior to attempting to tap, etc.). Even cooler were the probes that would measure the machined feature (inside diameter, outside diameter, width, etc.) and could then even automatically adjust the tool (boring bar, tool offset, etc.) to bring the part into tolerance.

...as 5Axis said this was used mainly in production runs...not prototypes...prototypes is where the fun was at
though

5Axis, have you attended the IMTS show at the McCormick Place before?

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