Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-07 Thread andy pugh
On Wed, 6 Jan 2021 at 23:47, Jon Elson wrote: > Dy-Kem Prussian Blue dye is the best, I think you will find that Stuarts "Micrometer" is the best. https://www.amazon.co.uk/Engineers-B079NCQ2X4-Paste-Marking-38gms/dp/B079NCQ2X4 -- atp "A motorcycle is a bicycle with a pandemonium attachment

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-07 Thread Jon Elson
On 01/06/2021 06:07 PM, Gene Heskett wrote: Never heard of Canode till now. Msg marked, thanks Jon Every shop supplier has the Dy-Kem, but few stock Canode. So, it is a bit harder to get. But, well worth it to keep the entire shop and all your clothes from turning blue. Jon

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-07 Thread Gregg Eshelman via Emc-users
I really wished I'd had the money to buy and transport, and a place to install and use this 8,000 pound iron surface plate that Gorton made and used in their factory. https://www.practicalmachinist.com/vb/antique-machinery-and-history/mother-all-gorton-surface-plates-282691/ Unfortunately the

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 23:46:36 TJoseph Powderly wrote: > Hi Gene > you can buy Prussian Blue oil paint tube from an art store or internet > you can get a pretty good surface plate from a cutout of a kitchen > sink granite top I have a surface plate but its triple the weight of this mill.

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread TJoseph Powderly
Hi Gene you can buy Prussian Blue oil paint tube from an art store or internet you can get a pretty good surface plate from a cutout of a kitchen sink granite top you can measure the flatness with this old trick takes 2 123 blocks a mag indicator stand and an indicator mount indicator to stand and

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 18:45:11 Jon Elson wrote: > On 01/06/2021 04:30 PM, Gene Heskett wrote: > > On Wednesday 06 January 2021 06:08:23 andy pugh wrote: > >> How far out of true is it? > > > > A good mm in some of the places I have checked. But now I need to > > stay at or below .1mm over

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Jon Elson
On 01/06/2021 04:30 PM, Gene Heskett wrote: On Wednesday 06 January 2021 06:08:23 andy pugh wrote: How far out of true is it? A good mm in some of the places I have checked. But now I need to stay at or below .1mm over a foot of travel for this box mod. I could reclamp it, and survey it with

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 11:36:36 Lester Caine wrote: > On 06/01/2021 15:47, Gene Heskett wrote: > > That probably would not leave enough meat for the clamp bolt heads > > to pull against in places. These are off a 16th" or more from > > previous checks. Very poor extrusions IMNSHO. > > I

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 08:45:36 Todd Zuercher wrote: > -Original Message- > From: andy pugh > Sent: Wednesday, January 06, 2021 6:08 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Bed isn't > flat on my 6040. > > >But: Will it h

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 06:08:23 andy pugh wrote: > On Wed, 6 Jan 2021 at 03:51, Gene Heskett wrote: > > But this would be a true 3d need as it needs correction in both X > > and Y travel. lincurve isn't made to do that. So how might that be > > done? > > There was some work done on this

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Lester Caine
On 06/01/2021 15:47, Gene Heskett wrote: That probably would not leave enough meat for the clamp bolt heads to pull against in places. These are off a 16th" or more from previous checks. Very poor extrusions IMNSHO. I have a router table with an A3 working area, using an extruded bed. The

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 05:28:10 Bruce Layne wrote: > On 1/6/21 4:29 AM, Gene Heskett wrote: > > how does one maintain access to the bed slots for hold down clamps? > > That's the problem with the slotted aluminum table top.  Very handy... > until you realize it's not flat and/or level. > >

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Todd Zuercher
-Original Message- From: andy pugh Sent: Wednesday, January 06, 2021 6:08 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Bed isn't flat on my 6040. >But: Will it help? If the bed is not flat, and you clamp a workpiece to it, >does the workpiece conform e

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread andy pugh
On Wed, 6 Jan 2021 at 03:51, Gene Heskett wrote: > But this would be a true 3d need as it needs correction in both X and Y > travel. lincurve isn't made to do that. So how might that be done? There was some work done on this several years ago (look at probekins) but it wasn't very

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Bruce Layne
On 1/6/21 4:29 AM, Gene Heskett wrote: > how does one maintain access to the bed slots for hold down clamps? That's the problem with the slotted aluminum table top.  Very handy... until you realize it's not flat and/or level. For a small slotted aluminum bed that was flat, I'd probably try to

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Wednesday 06 January 2021 02:32:05 marcus.bow...@visible.eclipse.co.uk wrote: > On 2021-01-06 04:25, Bruce Layne wrote: > > Why don't you just install a spoil board and machine it flat like > > most people do with a CNC router? > > When I converted my mill, I followed some published

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-06 Thread Gene Heskett
On Tuesday 05 January 2021 23:25:53 Bruce Layne wrote: > Why don't you just install a spoil board and machine it flat like most > people do with a CNC router? > Been considered, but how does one maintain access to the bed slots for hold down clamps? Thanks Bruce. > On 1/5/21 10:48 PM, Gene

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-05 Thread marcus . bowman
On 2021-01-06 04:25, Bruce Layne wrote: Why don't you just install a spoil board and machine it flat like most people do with a CNC router? When I converted my mill, I followed some published instructions for an identical mill, and added ballscrews. That involved machining a shallow 'trench'

Re: [Emc-users] Bed isn't flat on my 6040.

2021-01-05 Thread Bruce Layne
Why don't you just install a spoil board and machine it flat like most people do with a CNC router? On 1/5/21 10:48 PM, Gene Heskett wrote: > Greetings all; > > I find on a simple jobs tonight, that the bed isn't flat, and that I need > to scan it for lincurve data. > > But this would be a