Capto rules

[gcode]

I can't show you the part but

I had to do some 4-40 x 3/8" deep threads in the bottom of a 2" deep pocket

wall clearance was .2" max

Material was titanium

It took a 16" gage length tool to reach the top of the pocket and the tool was 2.5" out of holder

This is an HSK-125 C8 tool holder with Capto C8 adapters stacked 16" long

The cutting tool is a Carmex thread hob 4" overall on a 6mm shank.

Stock, the tool had a DOC of .31" and we had to have it ground back to .400.

The grinder butchered the job and ground them back .500"

Here is the part that's was hard to believe...

total runout of the 6mm shank was .0002" and the butchered tool actually worked

 

[jlw™]

Capto is as good as it gets with stackable tools in my opinion.  I just ordered enough to tool up a new E1600 Thursday.

[Mick]

We run capto on our lathes, including the Multus, which has a C6 spindle. We also run capto on our MU500 for the same reason as gcode. Excellent "stackability" enabling us to have modular tool length.

 

The new Multus U3000 has a C6 upper spindle, and the lower turret will be Capto as well. I love the stuff

[gcode]

for a little perspective on the size of that stack, the collet chuck on the end is an ER-32

[Colin Gilchrist]

+1 For how awesome Capto is. We've got a half inch endmill,1.5 LOC, hanging out 24.5" from the gauge line. It runs like a champion, even with the 23" of Capto stack behind it. I never thought it would run as well as it does, hanging out that far.

 

I think there are three extensions, plus the shrink fit holder...

[Watcher]

The assembly below has 34.37" from the HSK gage line to the tool tip...

 

HSK100 with C8 extensions...

 

Run-out at the tool shank 0.0005" using a ER32 collet as well... Impressive...

 

 

[GoetzInd]

I concur. Capto is awesome. Have it on all our lathes and some Cat40 to capto adapters for mills.

 

Mike

[sir Camalot]

Very impressive to say the least! With that much mass sticking out there and spinning...how would one calculate what is actually doable with respect to length, rpm and feedrate? Are there other variables that come into play? Is there a magic formula or software that you guys are using to calculate this for you? Does it matter or is it safer if the tool is running vertical vs. horizontally? Sorry for the questions but I am fascinated by this and not sure why I never thought about having to reach that far to get a job done.     

[Watcher]

Here goes an example where you need to cross the negative side of the X axis on a millturn and a long tool is the way to go... By the way the same tool shown above...

 

[robk]

Here is another sample. Gage length is approx 23.5"

 

 

 

 

 

[Reko]

I agree... I have had very good success with these in large 50 taper machines.

 

I tried to get the owner to buy the dampening extension with the solid carbide rod in it... but the price was a bit high. I heard that works really well to eliminate chatter on long reaches as well.

[robk]

I agree, their "Silent" dampened tooling works great. You definitely get what you pay for.

[mkd]

i'd like to get a BT40 to capto adaptor to do some (macturn) turning at 45°, but the only one i found was $600.

 

a bit too much money right now for something I'm going to need to butcher/weld coolant block to.

[GoetzInd]

I knew RobK would be good for some good Capto extension shots  

 

Mike

[jlw™]

Here is another sample. Gage length is approx 23.5"

 

 

 

 

 

Is that an E1060? Looks just like our vortex 1060. Great machine in my opinion. We got a new e1600 with smoothx getting set up right now, I should get the keys to it tomorrow or friday.

[robk]

That is in e-1550.

For integrex machines we currently have (1)e-1060, (1)e-1550, (3)e-1850.

We have (6)e-1250 and (1)e-1600 coming in next year and we will be ordering quite a few more in a very near future.

[jlw™]

Nice! Just to rub it in, with in a week I'll be caressing the touch screen of the first customer bought e1600 with smoothx in a matter of days.

[Newbeeee™]

Although I'm easily impressed (), these stacks are VERY impressive.

[BNFab]

Yes Capto rules....

 

 

Thats a 10.5" dia disc mill...

[jlw™]

That's just mean and nasty. What was f/s? Is that a Sandvik diskmill?

 

What kind of machine is that, bless it's heart, that needs a good cleaning?

[GoetzInd]

Remember, there is a limit....

 

http://www.practicalmachinist.com/vb/cnc-machining/my-latest-capto-grenade-experiment-224331/

 

Mike

[Mick]

Remember, there is a limit....

 

http://www.practicalmachinist.com/vb/cnc-machining/my-latest-capto-grenade-experiment-224331/

 

Mike

 

I've seen some major Capto failures, but to be fair they have either been way too optimistic with extension, or a workpiece, fixture, or machine tool component has brought the tool to a sudden stop. ie, it was on its way to a target point and something was blocking its path

[jlw™]

I've seen some major Capto failures, but to be fair they have either been way too optimistic with extension, or a workpiece, fixture, or machine tool component has brought the tool to a sudden stop. ie, it was on its way to a target point and something was blocking its path

All the failures I've seen in Capto involved an interfenece. Never tried to spin too fast. Capto is way better than shïtsabore or DeAndre by far in my opinion.

 

Regarding that disk mill in the link, I'd try to find a solid holder for that cause it'd be bad enough on a stubby holder.

[Newbeeee™]

I've seen some major Capto failures, but to be fair they have either been way too optimistic with extension, or a workpiece, fixture, or machine tool component has brought the tool to a sudden stop. ie, it was on its way to a target point and something was blocking its path

...to quote 'way too optimistic' lol!!!

Seeing most of these photos here I'd have put in that category

 

btw - Psycomill hasn't been around in ages. He used to drop here for a bit but used to always be on Practical Machinist. Anyone know or heard from him?

[BNFab]

He's still around , I don't know if he posts much on the forums though anymore.