Search found 194 matches

by davidimurray
Mon 27 Mar , 2017 12:23 pm
Forum: Triac
Topic: Riser block
Replies: 4
Views: 3995

Re: Riser block

Would anyone happen to have drawings for the riser block?

Cheers

Dave
by davidimurray
Mon 17 Nov , 2014 23:24 pm
Forum: Denford Classifieds
Topic: Denford Starturn 4 For Sale
Replies: 0
Views: 1959

Denford Starturn 4 For Sale

For anybody who may be interested I am selling a retrofitted Starturn 4 lathe -
http://www.ebay.co.uk/itm/291298184652? ... 1555.l2649
by davidimurray
Mon 21 Apr , 2014 18:56 pm
Forum: Denford Classifieds
Topic: Denford Literature Clearout
Replies: 0
Views: 1421

Denford Literature Clearout

I'm having a clear out of all the denford manuals I've collected over the years, for Starturn, Triac and Orac. All 99p starts and if not sold will be going in the bin - http://www.ebay.co.uk/sch/davidimurray/ ... pg=&_from=
by davidimurray
Mon 25 Feb , 2013 22:15 pm
Forum: Denford Classifieds
Topic: For Sale - SD2 & SD3 Stepper Drivers from Denford Triac
Replies: 0
Views: 1392

For Sale - SD2 & SD3 Stepper Drivers from Denford Triac

Having refitted my Triac with some new drives my old ones are up for grabs -

http://www.ebay.co.uk/itm/Denford-triac ... 43b92b3575
by davidimurray
Sun 17 Jul , 2011 17:53 pm
Forum: Triac
Topic: Triac Problems - Stepper Driver Dead
Replies: 5
Views: 1756

Re: Triac Problems - Stepper Driver Dead

Had a closer look at my mill today and the jumpers are setup the same as yours. I tried installing the new drive with LK1 fitted and the motor just hummed. Switcjed it with LK2 (like the Y axis setup) and it now works perfectly.
by davidimurray
Sat 16 Jul , 2011 15:03 pm
Forum: Triac
Topic: Triac Problems - Stepper Driver Dead
Replies: 5
Views: 1756

Re: Triac Problems - Stepper Driver Dead

Hi Tom Sorry for the delay in getting back to you. Hopefully I'm now sorted - got hold of a secondhand unit. Just need to swap the heatsinks and we should be back in business :D One interesting thing I noticed. If you look at the SD2/3/5 Manual at the jumper settings it says LK1 - leave fitted, LK2 ...
by davidimurray
Sun 10 Jul , 2011 19:13 pm
Forum: Triac
Topic: Triac Problems - Stepper Driver Dead
Replies: 5
Views: 1756

Triac Problems - Stepper Driver Dead

Well having gone to all the trouble of retrofitting the old stepper and spindle drivers into a new cabinet and getting everything working with Mach 3 - my Z axis groaned, vibrated and then ground to a halt. The machine has been working brilliant until now. Now I've tried swapping the Z and Y axis st...
by davidimurray
Sun 08 May , 2011 18:33 pm
Forum: Orac
Topic: Orac opto sensor board
Replies: 3
Views: 1336

Re: Orac opto sensor board

If it's the same as the one on the starturn (which I think it is) you need to supply the sensor with a 12v supply and you will get a 5v output from the signal lines.
by davidimurray
Fri 01 Apr , 2011 22:00 pm
Forum: StarTurn
Topic: Starturn 4 Mechanical Questions
Replies: 11
Views: 5114

Re: Starturn 4 Mechanical Questions

The only time I have an issue with mine losing steps is if I haven't used it for a couple of weeks and the slides seemed to get gummed up. Before I run the machine I always cycle it back and forth a few times the whole lenght of both axes with a drop of oil. This sorts it out and it's fine then. I d...
by davidimurray
Fri 01 Apr , 2011 20:13 pm
Forum: StarTurn
Topic: Starturn 4 Mechanical Questions
Replies: 11
Views: 5114

Re: Starturn 4 Mechanical Questions

From my experiences of denfords the spindles always tend to run quite warm - we always used to joke at work that those canny yorkshire lads had included a tea warming facility. Seriously though my starturn generally tends to run quite hot - just hot enough to be uncomfortable to hold. The Triac and ...
by davidimurray
Sun 27 Mar , 2011 20:40 pm
Forum: Triac
Topic: New Triac Retrofit
Replies: 7
Views: 1998

Re: New Triac Retrofit

Well - it has been a while since I posted on this thread so with some good progress today I thought I would update everyone. Got hold of an old machine stand from what I think is an Emco mill from a tech college. Stripped the Triac from the base, stripped the electronics and then cut the top off the...
by davidimurray
Fri 29 Oct , 2010 12:09 pm
Forum: Triac
Topic: TRIAC KEYBOARD
Replies: 2
Views: 1051

Re: TRIAC KEYBOARD

We never got ours fixed - but I did get some good info on the keyboard -

viewtopic.php?f=47&t=1700
by davidimurray
Wed 27 Oct , 2010 13:21 pm
Forum: Denford Classifieds
Topic: Wanted ORAC Spindle Drive Choke
Replies: 11
Views: 4771

Wanted ORAC Spindle Drive Choke

Hello

Does anyone have one of these units going spare? I'm looking at an Orac for a friend that has been part retrofitted. The Parajust spindle drive is there, but the choke is missing. If anyone has one they wish to sell then please get in touch.

Cheers

Dave
by davidimurray
Tue 26 Oct , 2010 8:26 am
Forum: Orac
Topic: Orac Inverter
Replies: 19
Views: 4002

Re: Orac Inverter

Hi Guys

Seaman - did you get your inverter going? I've been asked to help a friend out with his Orac and having a look through the boxes of bits last night I couldn't find the choke. Did you manage to source another one or has anyone got one going spare?

Cheers

Dave
by davidimurray
Wed 13 Oct , 2010 12:00 pm
Forum: Triac
Topic: New Triac Retrofit
Replies: 7
Views: 1998

Re: New Triac Retrofit

Finally made a start on stripping the Triac last night ready to move the electronics into a new enclosure. A quick question for those who have retrofitted. The step and dir pin wiring is easy enough but what have you done with the Fault, boost and energise signal lines? Energise can presumably be ig...
by davidimurray
Tue 28 Sep , 2010 20:00 pm
Forum: Triac
Topic: New Triac Retrofit
Replies: 7
Views: 1998

Re: New Triac Retrofit

Cheers guys

Tom - glad you got the Orac sensor working. Have you reused the 'datum' and spindle speed sensor on the Triac? Looking at the wiring diagrams it looks like you could recreat the simple transistor circuit on the original main board.
by davidimurray
Mon 27 Sep , 2010 13:43 pm
Forum: Triac
Topic: New Triac Retrofit
Replies: 7
Views: 1998

New Triac Retrofit

Well it's a while since I've last been on here! Quite a few of you may remember my adventures refitting my starturn 4 about 4 years ago and it's good to see that so many other people are still retrofitting and keeping these fantastic machines going. So why am I here? Well as of Friday I became the p...
by davidimurray
Mon 05 Oct , 2009 21:13 pm
Forum: Denford Classifieds
Topic: Starturn 4 for Sale
Replies: 0
Views: 846

Starturn 4 for Sale

Hello

Long time since I've been on the forum. Decided it's time for a bit of a clearout so I've decided to sell one of my spare Starturn 4 lathes. This machine is ripe for a retrofit with some modern software.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0356778333

Cheers

Dave
by davidimurray
Sat 06 Sep , 2008 10:00 am
Forum: Triac
Topic: Triac Keyboard problems
Replies: 13
Views: 5293

More info courtesy of Paul.

Cheers

Dave
by davidimurray
Fri 05 Sep , 2008 14:51 pm
Forum: Triac
Topic: Triac Keyboard problems
Replies: 13
Views: 5293

Hello

Try this for size. A big thanks to Paul and the guys at work for working all this out.

Cheers

Dave