On 4/14/24 22:23, Billy via Emc-users wrote:
This is for a 24k 4HP spindle. Using ER32 ISO 30 tool holders. Probably not
going to be using any drill chucks in this thing.
Not to mention at only 4hp, there will be a max drill size it can pull
at the recommended cut rate. And likely a limited duty depending on the
cooling. I have a 1.5hp version, plain er20 collet, have never
considered a drill. If I need a hole I use an SC mill and make the hole
with g2/g3 codes. More precision than a drill anyway.
In that case, the idea of an iso30 per drill bit seems like a good
although pricey idea. The tool table would have to be part of the job
prep unless your budget for tool holders and storage is unlimited.
With a 10 pocket changer, 20 holders should soon find the popular ones
for the average job. When you need to reclaim a holder, reclaim the LRU
on the list.
On Apr 14, 2024, at 9:59 PM, gene heskett <ghesk...@shentel.net> wrote:
On 4/14/24 19:29, John Dammeyer wrote:
I'm just checking to get recommendations on tool setter placement and
workflow.
Thanks, Billy - aka Connor
Where to put the tool setter is likely where it's easiest for an operator to
also access the tool.
I don't know if the CNC router falls into an operation like changing a drill
bit. For most operations one just sets up the tools, tool table for those
tools with the lengths in the tool table. But if you have only one drill chuck
but need to drill different size holes then the way to use Tool #6 (the drill
chuck) is to set the length to 0. The tool change software then just uses the
tool table length to set the offset and the tools are used without ever
touching off.
But with Tool #6 the 1/4" and then 3/8" drill bit are different lengths. So
you might do a tool change to install the chuck and then pause over the tool setter. An
operator then puts in the right size drill bit and the system continues to then touch off
that drill bit but doesn't update the tool table length; that stays at 0. The holes are
drilled and then rinse and repeat for additional drill bits.
Anyway, that’s one scenario.
John
If the drill chuck is stiff enough, that works well, but I've not found a chuck
that doesn't have a thou run-out sticking as far out of an R8 as it does, so I
tend to use the r8 that fits the drills shank, its stiffer. This demands you
bring the setter into use as there is no consistent depth stop, at least in the
4 different r8 kits I have. More monkey business that probably cancels any
time saving the tool changer offers even if it changes the whole r8. So much
easier to assemble the drill in an er32 TTS holder, and build the tool changer
to change the TTS, measure it once and put it in the tool table. That would be
valid till the er32 nut was loosened again at the cost of the TTS stuff.
Another possibility might be to steal the pcb drill idea of a tight fitting
printed ring placed on a bit shank to serve as a depth stop, that you could put
in the tool table.
Methods depend on your imagination.
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Cheers, Gene Heskett, CET.
--
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soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
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- Louis D. Brandeis
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_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
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