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motorworks
09-06-2004, 06:44 PM
I just picked up some 8mm end milss with 8mm shank.Plan to use them in a DA180 Collect that is 5/16".Has anyone done this and will they be "too tight".
thanks
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JRouche
09-06-2004, 07:16 PM
1/16" travel seems high. Did you do a search online re: range for the collets? I think the max is 1/64" JR

Correction by me:
I didnt' notice you are trying to put a larger shank into the smaller collet (backwards). Ese no goot. JR

Another correction (musta been asleep): As pointed out the upward spread is only gonna be 0.00246063", doable.

[This message has been edited by JRouche (edited 09-06-2004).]

[This message has been edited by JRouche (edited 09-07-2004).]

John Stevenson
09-06-2004, 08:12 PM
JR,
5/16" is 0.3125"
8mm is 0.31496"
only 0.00246 up

These will definitely fit in a R8 collets

------------------
John S.
Nottingham, England

wierdscience
09-06-2004, 08:37 PM
John has it,works for me all the time.

motorworks
09-06-2004, 09:01 PM
Thanks guys!!
Gone to bid on some more!!

speedy
09-07-2004, 01:02 AM
You Americans really should adopt the metric system, it is one hell of a lot more accurate and simpler system of measurement.
I grew up with imperial and NZ changed over back in 1967; Almost all engineering retailers should have free conversion charts; they`re invaluable.
Ken

09-07-2004, 02:11 AM
The metric system is ungodly. The Imperial system with it's 12" per foot and 16 oz per pound is simple and natural.

The metric system is absurd with ten burpo meters equaling one dilly meter and so-on through through the whole silly system.

We have to keep the Imperial system. Think of the elementery teachers put out of work without all those conversion problems.

Next thing you'd limit us all to ten fingers and toes.

speedy
09-07-2004, 02:37 AM
And yor langwidge iz strayng two! http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif
Ken

Allan Waterfall
09-07-2004, 06:55 AM
Got to agree with Forrest.

I've got an imperial Myford lathe and a metric Tom Senior mill.I'll be glad when the DRO is fitted to the mill so I can use imperial again.

Allan

John Stevenson
09-07-2004, 07:26 AM
<font face="Verdana, Arial" size="2">Originally posted by Allan Waterfall:
Got to agree with Forrest.

I've got an imperial Myford lathe and a metric Tom Senior mill.I'll be glad when the DRO is fitted to the mill so I can use imperial again.

Allan</font>

HERETIC........

According to figures published 94% of the world uses metric.
That means the US represents only 6% of the world, come on guys, only a measlerly 6% ??????

The biggest most powerful country in the world ....6% http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif

Now if you were to join you could brag you were 100%

So what's it going to be 6% or 100% ????
Hard choice http://bbs.homeshopmachinist.net//biggrin.gif

John S.

J Tiers
09-07-2004, 08:14 AM
<font face="Verdana, Arial" size="2">Originally posted by speedy:
You Americans really should adopt the metric system, it is one hell of a lot more accurate

Ken</font>

That is very silly. Any subdividible unit is as "accurate" as any other. Any actual size can be described equally well in either system

And, of course, the simpler is also silly, as the decimal inches we use are precisely the same as mm etc. They differ merely by a scale factor.

As to the standardization, the US adopted the metric system in 1878 or so.

Now, then, it is rational to adopt it, simply to be teh same as others.

But, never fear, the chinese are imposing the metric system on the US.

Since we make nothing in the US anymore, imported goods all come from china. The chinese are tired of using US standards, so goods now come in fully metric. That should take care of it in short order.

nheng
09-07-2004, 08:17 AM
The Imperial system works real well on high tech weapons systems ... when our friends become our enemies every 20 or so years, they can't find replacement parts that fit right http://bbs.homeshopmachinist.net//biggrin.gif (unfortunately, the truth of this is that they may have MADE the darned parts).

If we switched to metric, one of the most pleasant things would be having drills sized in 0.5mm increments.

wierdscience
09-07-2004, 08:27 AM
Yes,but we 6% still produce and consume more than the rest of the world.

\$12trillion in the GDP alone,John,can you Brits count that high? http://bbs.homeshopmachinist.net//biggrin.gif

I don't give a crap what system it is,as long as I have my SAE threads,metric screw threads suck period.
Plus unless its changed recently UNC AND UNF are the only standardized threads in the world.The metric folk can't seem to decide which of the three fine pitches is to be standard.

Plus we are the only country to put a man on the moon and as someone once said we didn't do it with bolts made in Angola http://bbs.homeshopmachinist.net//biggrin.gif

speedy
09-07-2004, 08:32 AM
J Tiers, I stand corrected and admonished. Perhaps I should say it is a finer more precise system. When I first began my apprenticeship I used imperial, most mics etc were read in 0.001" increments; along came metric and the degree of accuracy improved, we were measuring in 0.01mm or 0.005mm. now to my way of thinking 0.01mm (0.0004" approx) is one hellovalot more precise than 0.001" as is 0.005mm compared to 0.001" Agreed?
The states may very well have adopted the metric system but they don`t seem to have implemented it. That should get you going? http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif
Ken
Wierd, you know that there is evidence that irrefutably proves the moon landing occured on a set somewhere out in a top secret facility. it was created to further ensure more funding for NASA and to stick it to the Russians. Don`t tell me I`m wrong!! cos I saw it on the TV, where all the truth comes from. http://bbs.homeshopmachinist.net//tongue.gif http://bbs.homeshopmachinist.net//tongue.gif

[This message has been edited by speedy (edited 09-07-2004).]

John Stevenson
09-07-2004, 09:18 AM
<font face="Verdana, Arial" size="2">Originally posted by wierdscience:
Yes,but we 6% still produce and consume more than the rest of the world.

\$12trillion in the GDP alone,John,can you Brits count that high? http://bbs.homeshopmachinist.net//biggrin.gif

</font>

Consume? as in gas guzzling SUV's ? http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif

As regards trillions yes we can count that high but then again you add one more nought than the rest of the world. http://bbs.homeshopmachinist.net//biggrin.gif http://bbs.homeshopmachinist.net//biggrin.gif

motorworks
09-07-2004, 03:59 PM
Many systems found here:
This past weekend I found the following on a Norwegian built boat: