Search found 97 matches

by MAX THE MILLER
Tue 16 Oct , 2018 21:43 pm
Forum: Mirac
Topic: MIRAC. ERROR 128.
Replies: 16
Views: 2089

Re: MIRAC. ERROR 128.

I've just discovered the MInt Manager utility. I'll see if I can talk to the Eurocard using that.
by MAX THE MILLER
Tue 16 Oct , 2018 20:28 pm
Forum: Mirac
Topic: MIRAC. ERROR 128.
Replies: 16
Views: 2089

Re: MIRAC. ERROR 128.

No put down intended Pete. I'm sorry if it came across that way. Regarding experience, I have a good theoretical and practical knowledge of electronics. I know how PC's dating from the 1990's are put together. Not so good on software. Alas I had no joy with the Flstep software along with the .go and...
by MAX THE MILLER
Tue 16 Oct , 2018 9:10 am
Forum: Mirac
Topic: MIRAC. ERROR 128.
Replies: 16
Views: 2089

Re: MIRAC. ERROR 128.

Thanks Martin. I'm amazed that Denford still have info on such an old machine. I'll give the settings and flstep a try. If it doesn't work at least I'll know I'm looking at a hardware problem. Pete. At work more than 30 years ago we used to say that a V24 interface was so called because it took 24 h...
by MAX THE MILLER
Mon 15 Oct , 2018 21:03 pm
Forum: Mirac
Topic: MIRAC. ERROR 128.
Replies: 16
Views: 2089

Re: MIRAC. ERROR 128.

Thanks for your reply. I read through a number of error 128 posts before starting this new thread. The reason two com ports are installed by my .go file is that one was used for a serial printer. This is no longer connected, so I suppose I could edit the .go file to only install the com port for the...
by MAX THE MILLER
Mon 15 Oct , 2018 16:18 pm
Forum: Mirac
Topic: MIRAC. ERROR 128.
Replies: 16
Views: 2089

MIRAC. ERROR 128.

I have a Mirac, not the PC version, which has never worked whilst in my possession. At switch on the built in PC's BIOS shows that there are three com ports, which is correct. If I run the Mirac DOS software, as downloaded from this site, it aborts with error 128 after installing or perhaps attempti...
by MAX THE MILLER
Sat 06 Oct , 2018 8:57 am
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

Thanks for fixing the problem.

Max.
by MAX THE MILLER
Mon 01 Jan , 2018 15:34 pm
Forum: VR Milling - All Versions
Topic: VR Milling 5. Software versions.
Replies: 0
Views: 1426

VR Milling 5. Software versions.

I've noticed that the last version of VR Milling 5 to be formally announced in this section is V5.61.

The version available from the download page is V5.66.

Is there a statement available showing the changes in the latest build?

Thanks.
by MAX THE MILLER
Tue 31 Jan , 2017 23:21 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

Sorry to disappoint you Pete, but the problem is still there in version 5.64.

It shouldn't be too difficult to write G Code to cut a 500mm dia semicircle. Just a G1 for the straight diameter cut and a G2 specifying the end point and arc radius for the semi-circular arc.
by MAX THE MILLER
Tue 31 Jan , 2017 23:07 pm
Forum: VR Milling - All Versions
Topic: Problem drilling holes.
Replies: 9
Views: 6396

Re: Problem drilling holes.

I was running V5.63, but have now upgraded to V5.64. I can confirm that the problem is fixed in both builds. I probably hadn't noticed as I've been converting all DWG files to metric dimensions before importing them so as to avoid the problem. Many thanks. It would appear that no new version announc...
by MAX THE MILLER
Tue 31 Jan , 2017 12:41 pm
Forum: VR Milling - All Versions
Topic: Problem drilling holes.
Replies: 9
Views: 6396

Re: Problem drilling holes.

Four years have passed and still no fix.
by MAX THE MILLER
Tue 31 Jan , 2017 12:37 pm
Forum: VR Milling - All Versions
Topic: Arc converted to straight lines.
Replies: 32
Views: 15400

Re: Arc converted to straight lines.

I started this thread more than two years ago. At that time I naively thought that as I'd bought a licence for VR Milling 5 it would be a properly supported product. This clearly isn't the case and this isn't the only problem I've raised which hasn't been fixed. There's been no new software release ...
by MAX THE MILLER
Sat 13 Feb , 2016 13:30 pm
Forum: Electronics
Topic: Brown Pestell VFD.
Replies: 0
Views: 5254

Brown Pestell VFD.

Is there anyone here who has a Brown Pestell VFD and would be able to check the value or colour code of resistor R66 for me. It's located next to IC7.

I'm repairing one of these units where R66 has gone very high in value and the colour code is indistinct.

Thanks, Max.
by MAX THE MILLER
Mon 08 Feb , 2016 22:38 pm
Forum: VR Milling - All Versions
Topic: VR Milling Version 5.63
Replies: 0
Views: 4942

VR Milling Version 5.63

I notice that Version 5.63 has appeared on the download page. I've downloaded it and it runs OK.

What problems are addressed by this version?

Thanks.
by MAX THE MILLER
Sun 29 Nov , 2015 14:06 pm
Forum: Orac
Topic: orac speed control
Replies: 3
Views: 4096

Re: orac speed control

I notice that the document linked to in post #2 only contains the even numbered pages from the original hardcopy document.

Is there any chance of a scan of the odd numbered pages?

Thanks.
by MAX THE MILLER
Fri 20 Nov , 2015 13:12 pm
Forum: Orac
Topic: Orac spindle drive problem
Replies: 21
Views: 6805

Re: Orac spindle drive problem

Colin.

I've sent you a Private Message (PM).
by MAX THE MILLER
Mon 16 Nov , 2015 14:23 pm
Forum: Orac
Topic: Orac spindle drive problem
Replies: 21
Views: 6805

Re: Orac spindle drive problem

What is the S2074 board?
I see it's the board with the + and - 12VDC supplies. Make sure these are present on the PC1951 before you start measuring other things or you'll be chasing your tail.
by MAX THE MILLER
Mon 16 Nov , 2015 11:37 am
Forum: Orac
Topic: Orac spindle drive problem
Replies: 21
Views: 6805

Re: Orac spindle drive problem

LF356's in round metal cans, as opposed to plastic Dual In Line (DIL) packages are available on UK ebay and from Farnell. You'll probably find that the actual device on your board has a suffix such as A, H or BH. Rather than probe the LF356 directly, with a risk of shorting its leads, it would be be...
by MAX THE MILLER
Fri 06 Nov , 2015 10:46 am
Forum: Orac
Topic: Orac spindle drive problem
Replies: 21
Views: 6805

Re: Orac spindle drive problem

There's a lot for me to think about there. Your break in Spain will give me a bit of breathing space. Following a cursory glance at your readings I've a couple of comments. 1. You mention using TB/2 as reference. It's obviously a typo, but I hope you meant TB1/2 (Terminal block 1, terminal 2). 2. Yo...
by MAX THE MILLER
Wed 04 Nov , 2015 11:07 am
Forum: Orac
Topic: Orac spindle drive problem
Replies: 21
Views: 6805

Re: Orac spindle drive problem

Here's how the circuit works:- A 6840 programmable timer on TI0.C module (S2044) generates a waveform, the characteristics of which vary with the spindle speed selected. The waveform turns a BC377 transistor on the same board on and off. The output of the BC377 alternately lights and extinguishes a ...
by MAX THE MILLER
Tue 03 Nov , 2015 9:12 am
Forum: Orac
Topic: Orac spindle drive problem
Replies: 21
Views: 6805

Re: Orac spindle drive problem

That's the diagram alright. I couldn't make head nor tail of it though, until I realised it's missing all the odd pages! I get the gist of it though. The relay on PC1951 does control the start and stop of the motor, so as long as you can start and stop the motor using M commands it's probably OK. Be...