Re: [Emc-users] Project Progress

2021-11-04 Thread John Dammeyer
Hi Marcus, > From: Marcus Bowman [mailto:marcus.bow...@visible.eclipse.co.uk] > On 4 Nov 2021, at 21:46, andy pugh wrote: > > > > Or possibly: > > https://photos.app.goo.gl/72BgoRiKeGmQqDHs9 > > I removed the ACME screws when I converted my mill. I replaced them with > ballscrews. The nuts are

Re: [Emc-users] Project Progress

2021-11-04 Thread Marcus Bowman
On 4 Nov 2021, at 21:46, andy pugh wrote: > > Or possibly: > https://photos.app.goo.gl/72BgoRiKeGmQqDHs9 I removed the ACME screws when I converted my mill. I replaced them with ballscrews. The nuts are platform-style, rather than cylindrical.

Re: [Emc-users] Project Progress

2021-11-04 Thread Gene Heskett
On Thursday 04 November 2021 19:33:39 John Dammeyer wrote: > Thanks Andy, > > > From: andy pugh [mailto:bodge...@gmail.com] > > > > On Thu, 4 Nov 2021 at 21:34, John Dammeyer wrote: > > > The backlash removal will be a major project. > > > > Maybe

Re: [Emc-users] Project Progress

2021-11-04 Thread John Dammeyer
Thanks Andy, > From: andy pugh [mailto:bodge...@gmail.com] > On Thu, 4 Nov 2021 at 21:34, John Dammeyer wrote: > > > > The backlash removal will be a major project. > > Maybe https://www.denfordata.com/bb/viewtopic.php?t=3727 I have plastic on the Z of my CNC Router. It doesn't move too fast.

Re: [Emc-users] Project Progress

2021-11-04 Thread dave engvall
For the fussy or perfectionist water cool. Probably water cool the ballscrew as heat conduction will be far superior to trying  to cool the acetal nut. Yep! I just fell out of the trees and damaged my head. ;-) Dave On 11/4/21 2:46 PM, andy pugh wrote: On Thu, 4 Nov 2021 at 21:34, John

Re: [Emc-users] Project Progress

2021-11-04 Thread bob X
PERHAPS MAKE A SECOND CUBE WITH ID TREAD TO MATCH, DRILL AND INSTALL 4 PINS BETWEEN THE EXISTING AND NEW CUBS. PLACE A COMPRESSION SPRING BETWEEN THEM SET THE 4 PINS FROM THE FARE SIDE OF THE NEW CUBE TO THE EXISTING AND LOCK THEM. THE OPPOSING TRUST CREATED SHOULD REDUCE BACKLASH BY A

Re: [Emc-users] Project Progress

2021-11-04 Thread andy pugh
On Thu, 4 Nov 2021 at 21:34, John Dammeyer wrote: > > The backlash removal will be a major project. Maybe https://www.denfordata.com/bb/viewtopic.php?t=3727 Or possibly: https://photos.app.goo.gl/72BgoRiKeGmQqDHs9 There is a GTEN RSH ballnut in there. They are rather slim but have an external

Re: [Emc-users] Project Progress

2021-11-04 Thread John Dammeyer
The backlash removal will be a major project. This is what the bronze ACME nut looks like. Clearly no way to split it and add any sort of backlash tweak. http://www.autoartisans.com/mill/XAxis_Nut-2.jpg The pin on the nut fits into this hole. http://www.autoartisans.com/mill/XAxis-Ways-3.jpg I

Re: [Emc-users] Project Progress

2021-11-04 Thread dave engvall
The aquaium pump should keep the sump aerobic. I suppose adding a bit of peroxide from time to time would do the same thing. If you let the sump go reducing (anaerobic) then the beastie that grow make volatile fatty acids and other wonderful smelling ( :-(  ) by-products. I live in a high

Re: [Emc-users] Prox sensors and wiring

2021-11-04 Thread dave engvall
Hi Andy, I have a box of those connectors in a 6 wide and will get a box of 1 wide and two wide. My thoughts are when used outside in a marine environment to glop some 3M Scotchcoat on them. Of course that make them rather fixed but they are cheap. :-) Dave On 11/4/21 1:44 AM, andy pugh

Re: [Emc-users] Project Progress

2021-11-04 Thread John Dammeyer
Thanks. I'll look into that coolant. Seems such a waste not to use what came with the mill. John > -Original Message- > From: andy pugh [mailto:bodge...@gmail.com] > Sent: November-04-21 1:50 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Project Progress > >

Re: [Emc-users] Project Progress

2021-11-04 Thread John Dammeyer
Hi Andrew, The max my mill will run is 3000 RPM. And because I made my own pulleys and am using a stock V belt there's a bit of vibration at that speed which I don't think helps much. The other issue is backlash on the X is over 0.020" so climb milling is out of the question. I've had a few

Re: [Emc-users] Project Progress

2021-11-04 Thread andy pugh
On Thu, 4 Nov 2021 at 06:36, John Dammeyer wrote: > My mill does have a coolant pump but I don't know if I use the mill often > enough to fill the reservoir with coolant that then goes mouldy and stinky. Just get modern coolant. I probably don't even use my mill ever month, and the coolant in

Re: [Emc-users] Prox sensors and wiring

2021-11-04 Thread andy pugh
On Thu, 4 Nov 2021 at 06:30, John Dammeyer wrote: > As for connectors, I'd solder and heat shrink to cables if they weren't long > enough to reach the cabinet. You can get glue-lined heat-shrink for a truly watertight joint. I bring the prox leads back to a watertight junction box, and in the

Re: [Emc-users] Project Progress

2021-11-04 Thread andrew beck
John I buy dlc costed aluminium end Mills. From my Chinese supplier. In my Linuxcnc controlled machine I use these feeds and speeds. For a 3 flute 10mm dia cutter. With Dlc. (diamand like coating) High speed aka fusion 360 adaptive clearing Depth of cut 25mm Side width of cut. 2mm 10k rpm

Re: [Emc-users] Prox sensors and wiring

2021-11-04 Thread andrew beck
Or from the servo drive suppliers. In China you can get good quality aviation connectors for like 7usd. That's what I use and I buy cable from them to. I have a guy that buys it all up for me and ships from one place. On Thu, 4 Nov 2021, 21:20 Chris Albertson, wrote: > I bought some of the

Re: [Emc-users] Prox sensors and wiring

2021-11-04 Thread Chris Albertson
I bought some of the proximity detectors for my 3D printer to measure the bed.I tested them on my mill by moving them untillthey tripped, backing off and doing it again to see how repeatable they are.Even the cheap no-=brand unit where as good as my ability to measure them. Set up a test

Re: [Emc-users] Project Progress

2021-11-04 Thread Gene Heskett
On Thursday 04 November 2021 03:44:54 Marcus Bowman wrote: > John, > > I always use single flute router-style cutters (Accupro, from MSC > Industrial at www.mscdirect.co.uk) which are specifically designed > for machining aluminium and are highly polished so the aluminium will > not stick to the

Re: [Emc-users] Project Progress

2021-11-04 Thread Marcus Bowman
John, I always use single flute router-style cutters (Accupro, from MSC Industrial at www.mscdirect.co.uk) which are specifically designed for machining aluminium and are highly polished so the aluminium will not stick to the flutes. These are jolly expensive cutters, and other makes are

Re: [Emc-users] Project Progress

2021-11-04 Thread John Dammeyer
I used the big 1/2" one for the large pocket and the smaller 5mm one for the smaller pocket and profile. The surface finish, given my crappy cast aluminium, was really nice. My mill does have a coolant pump but I don't know if I use the mill often enough to fill the reservoir with coolant

Re: [Emc-users] Prox sensors and wiring

2021-11-04 Thread John Dammeyer
I bought a number of the prox switches to retrofit the lever micro-switches. Can't find them anywhere at the moment nor can I find who I bought them from. So sad... I did make sure what I ordered could be wiredin the way that a broken wire would be the same as tripping the limit. Also the