Search found 16 matches

by DavidJ
Wed 26 Feb , 2020 11:26 am
Forum: Novamill
Topic: novamill spindle speed
Replies: 4
Views: 10592

Re: novamill spindle speed

Might be worth looking also at this post
http://www.denfordata.com/bb/viewtopic. ... int#p20031
by DavidJ
Thu 18 Jan , 2018 12:06 pm
Forum: Novamill
Topic: Sprint spindle controller settings
Replies: 2
Views: 7569

Re: Sprint spindle controller settings

Manuals for the Sprint Drive are available from
https://www.sprint-electric.com/downloads/#manuals

The manual gives some guidance on setting the customer presets.
by DavidJ
Fri 03 Feb , 2017 16:48 pm
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50103

Re: Novamill Column Raising Block

Ben - yes that is the RS part number I purchased. Expensive for what it is, but made that part of the job pretty effortless. Do remember to note which wire/terminal goes in which hole! Don't attempt it with a dodgy hand - I was concerned about possibly scarring mating surfaces when replacing the col...
by DavidJ
Sun 29 Jan , 2017 11:31 am
Forum: Novamill
Topic: Novamill Column Raising Block
Replies: 48
Views: 50103

Re: Novamill Column Raising Block

When I removed column from my Novamill (to cut weight for transit to new location) I disconnected all cables that go into the side of column from the multi-way connector on the side of the cabinet. This was to avoid chopping wires - I bought the proper Harting terminal removal tool (from RS) which m...
by DavidJ
Mon 21 Mar , 2016 16:18 pm
Forum: Novamill
Topic: Bringing my Novamill back to life
Replies: 35
Views: 40052

Re: Bringing my Novamill back to life

Barry, See this thread http://www.denfordata.com/bb/viewtopic.php?f=54&t=5051 - post of 31st Jan and the link provided on how to re-use the optically isolated 0-10V (actually 0-11V) out from the Denstep board. The PWM doesn't go via the 96 way header - you can do what is shown in the link, I soldere...
by DavidJ
Sun 20 Mar , 2016 15:55 pm
Forum: Electronics
Topic: Sprint 400 on Novamill - interesting fault (and fix)
Replies: 0
Views: 6544

Sprint 400 on Novamill - interesting fault (and fix)

After months of putting things off, I eventually sorted out re-using the opto isolated 0-10V output on the Denstep board to take a PWM output from Linux CNC (basically same approach as recently reported here in another thread). However, despite this the spindle would not run at all. One clue was tha...
by DavidJ
Tue 28 Jul , 2015 16:55 pm
Forum: Novamill
Topic: novamill atc retrofit
Replies: 64
Views: 68364

Re: novamill atc retrofit

The problem would be if you wanted a auto toolchange arm and carousal as that requires castings that we no longer have the patterns for. That needn't be a huge problem these days - reproducing a pattern via 3D printing is fairly straightforward. There is always fabrication as an option too. I would...
by DavidJ
Tue 28 Jul , 2015 16:34 pm
Forum: Novamill
Topic: novamill atc retrofit
Replies: 64
Views: 68364

Re: novamill atc retrofit

jonnydeen wrote:... And a spec on those bellevilles.
Information previously supplied in another thread
Disc Spring 28.0 O/D x 14.2 x 1.25 - I bought a bag full on-line from Associated Spring - they are a standard DIN size.

The extra drawings here should be helpful when I get round to doing some more work...
by DavidJ
Tue 13 Jan , 2015 15:11 pm
Forum: Novamill
Topic: Novamill Spindle
Replies: 9
Views: 8057

Re: Novamill Spindle

Thanks - that is very helpful.

Are similar parts lists available for drawings RM6_700 & RM6_700C ? (the ATC carousel).
by DavidJ
Sun 11 Jan , 2015 17:38 pm
Forum: Novamill
Topic: Novamill Spindle
Replies: 9
Views: 8057

Re: Novamill Spindle

Is the parts list available? The assembly drawings are of limited use without parts list?

What about part drawings - or is the ATC (or parts of it) used in a current/recent model ?
by DavidJ
Fri 09 Jan , 2015 17:28 pm
Forum: Novamill
Topic: ATC Carousel
Replies: 1
Views: 3214

Re: ATC Carousel

I've come across assembly drawing RM6/700 - a corresponding parts list would help to make more sense of this.
by DavidJ
Mon 15 Dec , 2014 12:20 pm
Forum: Novamill
Topic: ATC Carousel
Replies: 1
Views: 3214

ATC Carousel

I have drawings (but no parts list/BoM) for ATC spindle. Is any information available on Novamill ATC carousel?

I'm re-commissioning a Novamill (no ATC) and over time am thinking of adding ATC capability of some kind.
by DavidJ
Mon 08 Dec , 2014 14:23 pm
Forum: Novamill
Topic: Novamill Spindle
Replies: 9
Views: 8057

Re: Novamill Spindle

Thanks Martin.
by DavidJ
Mon 08 Dec , 2014 13:43 pm
Forum: Novamill
Topic: Novamill Spindle
Replies: 9
Views: 8057

Re: Novamill Spindle

Can anyone clarify for me if the disc springs shown in drawing RM6/100 have a spacer between the upper and lower stacks, or if there is actually a single stack with rather more than the 14 springs shown?
by DavidJ
Mon 09 Sep , 2013 9:53 am
Forum: Electronics
Topic: Smartstep / linuxCNC / novamill control
Replies: 10
Views: 10089

Re: Smartstep / linuxCNC / novamill control

Angel tech, can you please advise which pin you connected to for PWM speed control ?

I can resolve the incorrect min/max issue by inverting the signal (in software or hardware).
by DavidJ
Mon 19 Aug , 2013 9:41 am
Forum: Electronics
Topic: Novamill - spindle PWM ?
Replies: 0
Views: 2622

Novamill - spindle PWM ?

I recently bought a Novamill. Current plan is to control it using LinuxCNC - I'd like to use the existing electronics as much as possible (and have the option to revert to original). From other threads I've found details of how to wire to the 96 way header on the controller base board for STEP/DIR. ...