Search found 133 matches

by DavidB
Sat 25 Sep , 2021 20:24 pm
Forum: Router 2600
Topic: Porter cable 86902 spindle
Replies: 1
Views: 11

Re: Porter cable 86902 spindle

It's brushed so it'll be a universal motor and you can get speed controllers for them on the likes of ebay. Regarding the wires the brown should be live, the blue neutral, and you know the earths so you could wire a plug onto it and test with mains voltage which will give you full speed if it works.
by DavidB
Thu 09 Sep , 2021 21:17 pm
Forum: Novamill
Topic: Novamill Stepper motors dead?
Replies: 10
Views: 478

Re: Novamill Stepper motors dead?

You may find that one or more of the main power drive ICs have been damaged. If you search for L298 you'll get a number of likely useful posts on this BBS.
by DavidB
Mon 23 Aug , 2021 22:32 pm
Forum: Novamill
Topic: Spindle stalling after running
Replies: 7
Views: 237

Re: Spindle stalling after running

It may be worthwhile having the RCD checked to ensure it's functioning correctly as I had my house one trip whenever I turned on my TIG welder which hadn't happened before so had the welder tested and it was fine. I called in an electrician I know and he checked the RCD and it was bad so replaced it...
by DavidB
Sat 17 Jul , 2021 1:29 am
Forum: Triton
Topic: Triton pro questions - need help
Replies: 7
Views: 514

Re: Triton pro questions - need help

SRR is normally Spindle Reverse Relay so it looks like you already have one wired in just need to wire it to your new controller.
by DavidB
Sun 13 Jun , 2021 20:38 pm
Forum: Triac
Topic: 110v transformer va
Replies: 3
Views: 647

Re: 110v transformer va

That should do it. I looked up a Bijur TM-1 oiler and that gave a 3W power consumption and an estimate of the running current worked out it needed minimum 11VA transformer.
by DavidB
Fri 11 Jun , 2021 1:15 am
Forum: Triac
Topic: 110v transformer va
Replies: 3
Views: 647

Re: 110v transformer va

What oiler pump does your Triac use make and model, that would be useful to know to find the electrical load. Mine has a Bijur oiler but I can't access it easily at the moment as it's a work in progress.
by DavidB
Mon 24 May , 2021 15:45 pm
Forum: Viceroy
Topic: 280vs drawings BVS110-400 & ML100-402
Replies: 6
Views: 1226

Re: 280vs drawings BVS110-400 & ML100-402

You'll find the facility to add attachments at the bottom of the page where you post a reply.
by DavidB
Sat 08 May , 2021 23:22 pm
Forum: Micromill / Microturn
Topic: Puling 12v/5v off Micromill/Microturn
Replies: 2
Views: 566

Re: Puling 12v/5v off Micromill/Microturn

Depending on the board these may help as I posted them earlier on another thread Nextmove ST http://www.abbmotion.com/support/supportme/Documents/Manuals/MN1929_01-10.pdf and the other Baldor board used Smartstep https://www.baldor.com/Shared/manuals/1251-396.pdf . Both give the current rating for t...
by DavidB
Sat 08 May , 2021 20:57 pm
Forum: NovaTurn
Topic: help please
Replies: 13
Views: 2139

Re: help please

Worth checking first for any deposits around the battery on the Nextmove board as they are prone to leak electrolyte after many years which may effect the comms. If there are deposits they need to be removed with distilled or deionised water and dried. In many of the Denford installations the batter...
by DavidB
Fri 07 May , 2021 20:20 pm
Forum: NovaTurn
Topic: help please
Replies: 13
Views: 2139

Re: help please

As no one else has responded yet I thought I would ask if this is a system you have had running in the past and has now stopped working or if you're trying to get it working for the first time. This thread http://www.denfordata.com/bb/viewtopic.php?f=54&t=3167 mentions 'L' likely being a issue with ...
by DavidB
Fri 26 Mar , 2021 15:42 pm
Forum: Micromill / Microturn
Topic: Eprom Upgrade?
Replies: 4
Views: 1070

Re: Eprom Upgrade?

If you have access to something that'll read the EPROM then it could be a good precaution to do so and save it as a back-up as they don't last forever. IIRC when I've looked at some of the data sheets for the EPROMs I was using 10 years was a typical minimum life quoted, they normally go on far long...
by DavidB
Tue 16 Mar , 2021 20:39 pm
Forum: Novamill
Topic: Novamill communication issue
Replies: 10
Views: 1742

Re: Novamill communication issue

Is there a battery below the LED, it looks like there might be but the image doesn't have enough detail to be sure. Worth checking for any appearance of deposits on the PCB around the battery as they often leak electrolyte after a time and it typically effects the comms signals. Can you find one of ...
by DavidB
Thu 11 Mar , 2021 21:32 pm
Forum: Novamill
Topic: Novamill communication issue
Replies: 10
Views: 1742

Re: Novamill communication issue

One thing that can cause comms issues with some software, I don't know if it effects Denford software, is the latency setting in the FTDI driver, it's likely in the advanced settings dialog on the driver page you posted earlier. I think in order to use the USB efficiently it waits in case more chara...
by DavidB
Wed 10 Mar , 2021 22:59 pm
Forum: Novamill
Topic: Hot Spindle Bearings
Replies: 5
Views: 1094

Re: Hot Spindle Bearings

As no one else has replied yet do you have any information from Denford about how to set-up the bearings when replaced and what level of heating is to be expected. From looking at the Novamill assembly drawings the heating could be the result of doing the lock nut up too tight which holds the pulley...
by DavidB
Wed 17 Feb , 2021 16:31 pm
Forum: MicroRouter
Topic: Microrouter spindle board
Replies: 8
Views: 1606

Re: Microrouter v5 spindle board

This should give you an idea of how the original control card handles things http://www.denfordata.com/bb/viewtopic. ... 003#p11296 .
by DavidB
Wed 17 Feb , 2021 0:28 am
Forum: MicroRouter
Topic: Microrouter spindle board
Replies: 8
Views: 1606

Re: Microrouter v5 spindle board

I don't know what BOB you're using but the way you're suggesting connecting out1 and out2 on the BOB suggests to me that you don't fully understand the interfacing of the BOB to the Denford hardware. Luckily there's a lot of information already here on the Denford BB covering the subject, a search f...
by DavidB
Mon 15 Feb , 2021 23:50 pm
Forum: MicroRouter
Topic: Microrouter spindle board
Replies: 8
Views: 1606

Re: Microrouter v5 spindle board

Typical to many Denford products the SGR and other relays are tied to 24V. They're energised by pulling the other end of the relay coil to ground often with something like a ULN2803 driver chip on the main control board. My Triac is like that, I don't know if it has a timer as it's a conversion work...
by DavidB
Mon 15 Feb , 2021 23:14 pm
Forum: MicroRouter
Topic: Microrouter spindle board
Replies: 8
Views: 1606

Re: Microrouter v5 spindle board

IIRC P1 is the 0-10V 0V reference, P2 the 0-10V speed signal input, P3 the 10V reference so you can connect a suitable pot across P1 and P3 and take the wiper signal to P2 if required. The main thing to know is that 0-10V signals are referenced to the motor supply voltage and should not be connected...
by DavidB
Thu 04 Feb , 2021 1:14 am
Forum: MicroRouter Compact
Topic: Cutting Accuracy
Replies: 12
Views: 2985

Re: Cutting Accuracy

Brian, That's a great result, hopefully you get a decent discount for buying most of the UK stock. I had originally thought of suggesting 3D printing the inserts in Igus filament as you can buy it from their site but I don't know if you have a 3D printer. It's something I've had in mind to try for a...
by DavidB
Tue 02 Feb , 2021 16:50 pm
Forum: MicroRouter Compact
Topic: Cutting Accuracy
Replies: 12
Views: 2985

Re: Cutting Accuracy

Brian,

Have you looked for carriage equivalents elsewhere. I just saw this range at Igus and it looks similar https://www.igus.co.uk/product/930 . The Igus material may be more suitable than nylon which can be annoying to machine.