Re: [Emc-users] Milling setup question

Hello You could turn a cylinder that fits snugly in the large hole. Bolt it to the machine table, somewehere to the front (towards you), so that the part will fit over it. Indicate its sides so that the cutter's axis is dead-centered on it. Lock the table, put the part over the cylinder,

Re: [Emc-users] Milling setup question

On 30 March 2017 at 13:20, Erik Christiansen wrote: > Implicit in my other post is that the bore is machined first, and the > keyway (partially) machined wherever that ends up, with just a knee > elevation to get there. Once aligned, it can be widened or deepened in a >

Re: [Emc-users] Milling setup question

On 30.03.17 12:02, andy pugh wrote: > My particular setup puzzle is analagous to this, except that I will be > using the horizontal spindle. > > Machining this casting: https://goo.gl/photos/6QhNnqjzRuSJJpva7 > > The order of operations will be, starting with the raw casting: > 1) with the large

Re: [Emc-users] Milling setup question

On 30.03.17 12:53, andy pugh wrote: > I have been wondering about machining the keyway slot as part of the > first step and making it deep enough at the front face to be able to > probe it. However, I would prefer the freedom to centre the main > mounting bore in the semi-machined casting at step

Re: [Emc-users] Milling setup question

On 30 March 2017 at 12:38, Stephen Dubovsky wrote: > Why not swap 2&3? Machine base flat and machine keyway for the table. > Then mount to the table and indicate off the table slot to bore the hole > exactly on center? By default they will be parallel. The slots run the

Re: [Emc-users] Milling setup question

When you bore the hole can you machine some flats on either side as a reference? JT On 3/30/2017 6:02 AM, andy pugh wrote: > If you have a part with a large bore through the middle, how do you > set up to machine a hole exactly perpendicular to the axis of that > bore? > > I imagine that this

Re: [Emc-users] Milling setup question

Why not swap 2&3? Machine base flat and machine keyway for the table. Then mount to the table and indicate off the table slot to bore the hole exactly on center? By default they will be parallel. On Thu, Mar 30, 2017 at 7:02 AM, andy pugh wrote: > If you have a part with a

Re: [Emc-users] Milling setup question

On 30 March 2017 at 13:41, Cristian Bontas wrote: > You could turn a cylinder that fits snugly in the large hole. Certainly a possibility, but at 120mm quite a big chunk of material to use just as a jig. -- atp "A motorcycle is a bicycle with a pandemonium

Re: [Emc-users] Milling setup question

I think I would put at least two small holes in the face during 2). I might even add an operation at the end to put a small hole in an advantageous location depending on the application and tooling available. This would give you features to align/check whenever you desired. It has been my

[Emc-users] Milling setup question

If you have a part with a large bore through the middle, how do you set up to machine a hole exactly perpendicular to the axis of that bore? I imagine that this is quite a common problem, so must have a common solution? My particular setup puzzle is analagous to this, except that I will be using

Re: [Emc-users] 3D Printers

2017-03-30 8:12 GMT+03:00 Erik Christiansen: > This one makes claims: > http://hackaday.com/2017/03/25/mrrf-17-e3d-introduces-combin > ation-extruder-and-hotend/ > > Dunno how well the performance matches the sales spiel, though. > Titan first, then Aero... and they're almost back to the origins

[Emc-users] Looking for advice on LinuxCNC Version

Hello all, I built a gantry type router a year or so ago and was more interested in getting it running than anything else. My gantry runs along the Y axis and has 2 motors (joints). I am running the Axis GUI on LinuxCNC 2.6.x. My current setup has the ystep and ydir signals driving two

Re: [Emc-users] Milling setup question

On 30 March 2017 at 18:56, Gene Heskett wrote: > I would mount the shaft in the hole, or make something that fits snugly, > and could serve as something to indicate for verticality. There is no shaft, there is a 250mm register for the harmonic drive unit. And I can't bolt

Re: [Emc-users] Milling setup question

On Thursday 30 March 2017 07:02:14 andy pugh wrote: > If you have a part with a large bore through the middle, how do you > set up to machine a hole exactly perpendicular to the axis of that > bore? > Similar problem with this taperlock hub I've made, it could tip enough that the shaft it rides

Re: [Emc-users] Documentaion Question / Addition

There was a time (in the late 1990's to early 2000's) when LinuxCNC (EMC back then) had three realtime threads. What we now know as the base and servo threads, and a third slower thread for the trajectory planner. Back in the day, computers couldn't necessarily do all the trajectory planner

Re: [Emc-users] Looking for advice on LinuxCNC Version

The gantry component was a work around for 2.7. The JA branch has been merged into Master for some time now. Master is the development branch and when 2.8 is released it will contain most if not all of the things currently in master. JT On 3/30/2017 10:40 AM, Joe Hildreth wrote: > Hello all,

Re: [Emc-users] Looking for advice on LinuxCNC Version

It is possible to download with git, I do not have link but it should be rather simple to find. On Thu, 30 Mar 2017 11:21:42 -0500 (CDT) Joe Hildreth wrote: > John, > > Thank you for the information. Todd mentioned that I could run the 2.8-pre > version, but I

Re: [Emc-users] Looking for advice on LinuxCNC Version

Hi Joe, http://buildbot.linuxcnc.org/ You just need to change the deb line in the synaptic package manager to point to: deb http://buildbot.linuxcnc.org/ precise master-rtpreempt and deb-src http://buildbot.linuxcnc.org/ precise master-rtpreempt and follow the instructions to add the key.

Re: [Emc-users] Looking for advice on LinuxCNC Version

Once 2.8 is released I would switch to it _unless_ you need some feature in the new Master. This way you get bug fixes only and nothing that could be a show stopper... or a surprise. JT On 3/30/2017 11:45 AM, Joe Hildreth wrote: > John, > > Thank you again for the help and information. I

Re: [Emc-users] Looking for advice on LinuxCNC Version

John, Thank you for the information. Todd mentioned that I could run the 2.8-pre version, but I am unsure how to get it to my wheezy box. Are there software sources I need to point to to do this, or something else. I would be happy with a link to some instructions. Also, is there a time

Re: [Emc-users] Looking for advice on LinuxCNC Version

John, Thank you again for the help and information. I will try this out when I get home. One last question, when 2.8 is released, is it a matter then of just changing the software sources to be on that release or would it be best to just keep on the buildbot sources? Thank you again for

Re: [Emc-users] Looking for advice on LinuxCNC Version

Todd, Thank you for the feedback. Can you point me to some information on how to get the 2.8-pre installed on my debian wheezy box? Thanks, Joe Hildreth - On Mar 30, 2017, at 11:05 AM, Todd Zuercher zuerc...@embarqmail.com wrote: > The current Master branch (2.8-pre) is a descendant of

Re: [Emc-users] Looking for advice on LinuxCNC Version

I wouldn't hold my breath waiting for the release of 2.8. (And there is no release schedule.) But Master is relatively safe to run, and lots of people use it to run real machinery. It can be installed relatively easily on a system already running a standard Linuxcnc Debian Wheezy install.

Re: [Emc-users] Looking for advice on LinuxCNC Version

The current Master branch (2.8-pre) is a descendant of JA14, and would be the preferred method for a gantry with independent parallel joints on a single axis. - Original Message - From: "Joe Hildreth" To: "emc-users"

Re: [Emc-users] Looking for advice on LinuxCNC Version

John, Todd, Nicklas, Just wanted to thank you gentlemen one more time for the help. I really appreciate it. Regards, Joe Hildreth -- Check out the vibrant tech community on one of the world's most engaging tech

Re: [Emc-users] Milling setup question

Elaborating on my own post: On Thu, Mar 30, 2017, at 03:21 PM, John Kasunich wrote: > Why can't it be as 120mm diameter x 5mm thick disk? Turn said disk on the lathe, and bore a concentric but much smaller hole in the center. Then you can indicate to either the hole or a dowel inserted in the

Re: [Emc-users] Documentaion Question / Addition

You can comment them out and LinuxCNC runs just fine, that tells me they are leftover bit rot. JT On 3/30/2017 2:07 PM, John Kasunich wrote: > There was a time (in the late 1990's to early 2000's) when LinuxCNC (EMC back > then) had three realtime threads. What we now know as the base and

Re: [Emc-users] Documentaion Question / Addition

On 30 March 2017 at 20:07, John Kasunich wrote: > I'm not in a position to do it, but I wonder how hard it would be to grep > thru the code to see if those parameters are used? If they're not, they > should be deleted from the sample configs. Checked here:

Re: [Emc-users] Milling setup question

Why can't it be as 120mm diameter x 5mm thick disk? On Thu, Mar 30, 2017, at 09:00 AM, andy pugh wrote: > On 30 March 2017 at 13:41, Cristian Bontas wrote: > > You could turn a cylinder that fits snugly in the large hole. > > Certainly a possibility, but at 120mm

Re: [Emc-users] Milling setup question

On 30 March 2017 at 20:38, John Kasunich wrote: > Put two t-nuts in the center t-slot, bolt one cylinder down using one of the > nuts in a arbitrary location. Set the part over the cylinder, insert the > second cylinder and slide them apart until the two cylinders are

Re: [Emc-users] Milling setup question

It might be slightly more accurate to use a tooling ball in the centre of the 120mm disc rather than a dowel pin. They have a shoulder so tilt would not be an issue. > -Original Message- > From: John Kasunich [mailto:jmkasun...@fastmail.fm] > Sent: Thursday, March 30, 2017 3:27 PM > To:

Re: [Emc-users] Documentaion Question / Addition

I would comment them out and test, I tested the first two... and yes the StepConf maintainer should remove ini items that are not used. You should start a issue on this, the issue tracker is the correct place to report things like this. https://github.com/LinuxCNC/linuxcnc/issues JT On

Re: [Emc-users] Milling setup question

Yet another possibility: two pieces of matched diameter stock somewhere between 25-50mm diameter (non-critical) and 25-75mm long. Non-critical hole down the center of each one to fit a clamping stud. Put two t-nuts in the center t-slot, bolt one cylinder down using one of the nuts in a

Re: [Emc-users] Documentaion Question / Addition

John, These entries were generated with stepconf, should stepconf be updated so as not to include them. Also, just to verify, all three variable can be removed from these two sections? [EMCMOT] section COMM_TIMEOUT = 1.0 COMM_WAIT = 0.010 [TRAJ] section CYCLE_TIME = 0.010 Joe Hildreth

Re: [Emc-users] Documentaion Question / Addition

On Thursday 30 March 2017 15:07:41 John Kasunich wrote: > There was a time (in the late 1990's to early 2000's) when LinuxCNC > (EMC back then) had three realtime threads. What we now know as the > base and servo threads, and a third slower thread for the trajectory > planner. Back in the day,

Re: [Emc-users] Milling setup question

On Thursday 30 March 2017 15:21:48 John Kasunich wrote: > Why can't it be as 120mm diameter x 5mm thick disk? > > On Thu, Mar 30, 2017, at 09:00 AM, andy pugh wrote: > > On 30 March 2017 at 13:41, Cristian Bontas wrote: > > > You could turn a cylinder that fits

Re: [Emc-users] Milling setup question

I would: place the part on the base and machine large face place part on large face and machine the base and the t-slot. This means that the base and long dim. of the t-slot are perpendicular to the face place part on base and indicate large face to be perpendicular to spindle. This also