On 12/10/2013 8:46 PM, tcninj...@yahoo.com wrote:
> This discussion reminded me That I have one of these if someone wants to try
> it
>
> http://i1028.photobucket.com/albums/y342/tcninja12/Mobile%20Uploads/image_zps00648bad.jpg
What is the taper on those holders?
---
On 12/10/2013 10:21 PM, Jon Elson wrote:
> On 12/10/2013 12:50 PM, Dave Cole wrote:
>> I've got an Erickson QC30 on my Bridgeport CNC mill.
>> R8 does not maintain any accurate Z reference after a tool change.
>> So while you can change tools quickly, how much time does re-referencing
>> the Z axis
On 12/10/2013 07:21 PM, Jon Elson wrote:
> On 12/10/2013 12:50 PM, Dave Cole wrote:
>> I've got an Erickson QC30 on my Bridgeport CNC mill.
>> R8 does not maintain any accurate Z reference after a tool change.
>> So while you can change tools quickly, how much time does re-referencing
>> the Z axis
This discussion reminded me That I have one of these if someone wants to try it
http://i1028.photobucket.com/albums/y342/tcninja12/Mobile%20Uploads/image_zps00648bad.jpg
On Dec 10, 2013, at 7:20 PM, Kirk Wallace wrote:
> On 12/10/2013 12:28 PM, andy pugh wrote:
>> On 10 December 2013 20:13, Kir
On 12/10/2013 12:50 PM, Dave Cole wrote:
> I've got an Erickson QC30 on my Bridgeport CNC mill.
> R8 does not maintain any accurate Z reference after a tool change.
> So while you can change tools quickly, how much time does re-referencing
> the Z axis use on repetitive parts?
>
>
Why do you say th
On 12/10/2013 12:28 PM, andy pugh wrote:
> On 10 December 2013 20:13, Kirk Wallace wrote:
>
>> I would, given a large budget, prefer 30 or 40 taper with a power draw bar.
>
> My power draw-bar cost me £40, and half of that was because I decided
> to anodise the parts.
> (My mill was 30 INT as deli
On Tuesday 10 December 2013 20:13:46 Gregg Eshelman did opine:
> On Tue, 12/10/13, Gene Heskett wrote:
>
> Agreed Andy, my MT2 is a PIMA. And hell on spindle bearings
> since you have
> to seriously beat the drawbolt to loosen it.
>
> Cheers, Gene
>
> That's why I use a ball joint separato
On Tue, 12/10/13, Stephen Dubovsky wrote:
Subject: Re: [Emc-users] Acra CNC refit progress.
To: "Enhanced Machine Controller (EMC)"
Date: Tuesday, December 10, 2013, 2:55 PM
On Tue, Dec 10, 2013 at 1:50 PM, Dave
Cole
wrote:
> I've got an Erickson QC30 on my Bridgeport CNC mill.
> R8
On Tue, 12/10/13, Gene Heskett wrote:
Agreed Andy, my MT2 is a PIMA. And hell on spindle bearings
since you have
to seriously beat the drawbolt to loosen it.
Cheers, Gene
--
That's why I use a ball joint separator (AKA "pickle fork") on my little
Chinese drill/mill. Fits between the sp
On Tue, 12/10/13, Kirk Wallace wrote:
My random thoughts.
I have just started using the R8/Tormach toolholding system and find it
far more convenient than plain R8. Changes are as fast as grab a wrench,
loosen draw bar enough to slide tool holder out, put next holder in,
tighten, done.
On 12/10/2013 4:55 PM, Stephen Dubovsky wrote:
> On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole wrote:
>
>> I've got an Erickson QC30 on my Bridgeport CNC mill.
>> R8 does not maintain any accurate Z reference after a tool change.
>>
> Why? R8 uses a taper angle of 16.85deg. NMTB/QC30 uses 16.5943de
Stephen Dubovsky wrote:
> On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole wrote:
>
> Why? R8 uses a taper angle of 16.85deg. NMTB/QC30 uses 16.5943deg [both
> from wikipedia]. Both of them the taper face is the gauge line (they don't
> seat on a flat face or anything.) Both have 1.25" max taper
tcninj...@yahoo.com wrote:
> well it might be faster for one tool jobs but 5 or 6 tools already touched
> off might make the qc a better choice
>
> Terry
>
>
I have a 200 Kwik Switch on my Wells Index, would not trade it for any
amount of R8. Like the cat series it is a lot shorter for tool ch
On Tuesday 10 December 2013 17:28:10 Dave Cole did opine:
> On 12/10/2013 3:18 PM, Gene Heskett wrote:
> > On Tuesday 10 December 2013 14:55:24 andy pugh did opine:
> >> On 21 October 2013 18:21, Les Newell
wrote:
> >>> A trick to get around this is to use a 24V transformer to buck the
> >>> mai
Well. I have some good news at leat based on my experience tuning servos. I
mounted the motor and now is working moving the screw (this is a SAE 1045
steel screw with a nut made out of nylon 6). Doing a quick tuning today I
got a 0.2 mm of error and the oscillation stoped when the joint reached the
On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole wrote:
> I've got an Erickson QC30 on my Bridgeport CNC mill.
> R8 does not maintain any accurate Z reference after a tool change.
>
Why? R8 uses a taper angle of 16.85deg. NMTB/QC30 uses 16.5943deg [both
from wikipedia]. Both of them the taper face
On 12/10/2013 3:18 PM, Gene Heskett wrote:
> On Tuesday 10 December 2013 14:55:24 andy pugh did opine:
>
>> On 21 October 2013 18:21, Les Newell wrote:
>>> A trick to get around this is to use a 24V transformer to buck the
>>> mains down to 216V. Add the voltage doubler after that and your DC is
>
Hi Viesturs
> Paused at 0:57 and I see 7 ropes.
Right, I didn't notice this. Maybe the plan was to have 8 but one of the
drives died. :-)
> And at 3:17 I certainly do no understand,
> what kind of g-code is that, it seems to use G01 and G02, but the axis
> words seem strange.
Indeed, looks st
On Tuesday 10 December 2013 15:55:29 andy pugh did opine:
> On 10 December 2013 20:13, Kirk Wallace
wrote:
> > I would, given a large budget, prefer 30 or 40 taper with a power draw
> > bar.
>
> My power draw-bar cost me £40, and half of that was because I decided
> to anodise the parts.
> (My
On 10 December 2013 20:13, Kirk Wallace wrote:
> I would, given a large budget, prefer 30 or 40 taper with a power draw bar.
My power draw-bar cost me £40, and half of that was because I decided
to anodise the parts.
(My mill was 30 INT as delivered, and is now using BT30 tooling)
The Tormach p
On Tuesday 10 December 2013 15:19:27 Dave Cole did opine:
> On 12/10/2013 11:58 AM, andy pugh wrote:
> > On 21 October 2013 18:21, Les Newell wrote:
> >> A trick to get around this is to use a 24V transformer to buck the
> >> mains down to 216V. Add the voltage doubler after that and your DC
> >>
On Tuesday 10 December 2013 14:55:24 andy pugh did opine:
> On 21 October 2013 18:21, Les Newell wrote:
> > A trick to get around this is to use a 24V transformer to buck the
> > mains down to 216V. Add the voltage doubler after that and your DC is
> > spot on.
>
> You seem to understand transfo
On 12/10/2013 10:50 AM, Dave Cole wrote:
> I've got an Erickson QC30 on my Bridgeport CNC mill.
> R8 does not maintain any accurate Z reference after a tool change.
> So while you can change tools quickly, how much time does re-referencing
> the Z axis use on repetitive parts?
>
> Dave
>
> On 12/10
On 12/10/2013 12:42 PM, Tim Voght wrote:
> On 12/10/2013 11:11 AM, Kirk Wallace wrote:
>> On 12/10/2013 03:05 AM, andy pugh wrote:
>>> http://www.reprappro.com/new-electronics-new-reprap-new-distributor/
>>>
>>> Apparently named after an entomologist. But the mechanism is very similar
>>> to:
>>
I've got an Erickson QC30 on my Bridgeport CNC mill.
R8 does not maintain any accurate Z reference after a tool change.
So while you can change tools quickly, how much time does re-referencing
the Z axis use on repetitive parts?
Dave
On 12/10/2013 12:56 PM, Stephen Dubovsky wrote:
> Im not sure
well it might be faster for one tool jobs but 5 or 6 tools already touched off
might make the qc a better choice
Terry
On Dec 10, 2013, at 11:56 AM, Stephen Dubovsky wrote:
> Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has
> positive drive but a R8 power drawbar absolutel
On 10 December 2013 17:56, Stephen Dubovsky wrote:
> Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has
> positive drive but a R8 power drawbar absolutely whoops QC30 in tool change
> speed & ease.
How long does it take to lower the table far enough to extract 4.5' of R8?
I ad
Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has
positive drive but a R8 power drawbar absolutely whoops QC30 in tool change
speed & ease. Push button vs having to yank on a wrench both in and out.
Its not really an improvement.
SMD
On Tue, Dec 10, 2013 at 12:10 PM, Dave Co
On 12/10/2013 11:11 AM, Kirk Wallace wrote:
> On 12/10/2013 03:05 AM, andy pugh wrote:
>> http://www.reprappro.com/new-electronics-new-reprap-new-distributor/
>>
>> Apparently named after an entomologist. But the mechanism is very similar to:
>> http://www.lathes.co.uk/ormerodhandshaper/
>>
>> More
On 12/10/2013 11:58 AM, andy pugh wrote:
> On 21 October 2013 18:21, Les Newell wrote:
>> A trick to get around this is to use a 24V transformer to buck the mains
>> down to 216V. Add the voltage doubler after that and your DC is spot on.
> You seem to understand transforners :-)
>
> I am wonderin
On 12/10/2013 6:16 AM, andy pugh wrote:
> On 10 December 2013 05:32, Gregg Eshelman wrote:
>> A very nice surprise was the lot included a
>> Kennametal Erickson quick change spindle from a Bridgeport. The guy had
>> swapped it for an R8 spindle
> That's just perverse!
I'd go a bit further and say
On 21 October 2013 18:21, Les Newell wrote:
> A trick to get around this is to use a 24V transformer to buck the mains
> down to 216V. Add the voltage doubler after that and your DC is spot on.
You seem to understand transforners :-)
I am wondering what I can do with this one, that I found in a
On 12/10/2013 03:05 AM, andy pugh wrote:
> http://www.reprappro.com/new-electronics-new-reprap-new-distributor/
>
> Apparently named after an entomologist. But the mechanism is very similar to:
> http://www.lathes.co.uk/ormerodhandshaper/
>
> More than coincidence?
>
In thinking about a better Rep
On 10 December 2013 05:32, Gregg Eshelman wrote:
> A very nice surprise was the lot included a
> Kennametal Erickson quick change spindle from a Bridgeport. The guy had
> swapped it for an R8 spindle
That's just perverse!
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manif
http://www.reprappro.com/new-electronics-new-reprap-new-distributor/
Apparently named after an entomologist. But the mechanism is very similar to:
http://www.lathes.co.uk/ormerodhandshaper/
More than coincidence?
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
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