Hi Noel, Robert

I get very confused sometimes when trying to post reply messages. At First it was as though I was not logged in and could NOT type anything, I think I ended up trying again as a new member then found the title but none of your new messages were displayed until after I had sent mine.

I thought those two capacitors looked like Electrolytics, something to do with the Rectifier perhaps.

Thank you, You were both correct, I had made a serious error wiring it up and I am an idiot for not doing a thorough check. good lesson for you Noel, when you get to the testing stage.I knew something was wrong but missing a wire was a dreadful error. My Bench grinder seems ok. I ran it four times on the Start Capacitor for no more than 5 or 6 Seconds on each occasion. perhaps I got away with it, I have read somewhere but can’t remember where, that more than a couple of Seconds running on a Start Capacitor can destroy a motors windings. I rescued that B&D 7″ 3 phase Bench Grinder a couple of years ago from a skip  the stones thrown in seperately and luckily they had put the nuts and washers back on the spindle. no idea why they threw it away, Although the tool Rests are missing, AS ARE THE END COVERS  does anyone have a grinder like this that they could take a picture of the tool rests for me, to give me a rough idea what to make

.

Trevor

Hi IanP,

Sorry I probably did not mean digitised, what I meant to say was changing the Digital Format to enable a video to be attached to an email. I downloaded a program called VLC this program can be used to Edit Videos in various ways. You can reduce the Resolution by various ratio’s so the video takes far less time to download. But I suppose if I had a Analogue Video this could be Digitised. (now go and find a photo ) so do text copy. !!

Hi Noel,

30 Year old MOTORUN 3 Phase Static converter 

Thanks everybody, I am relieved that I have got it working. Here is a good Tip, I used Crimp On connectors for the Capacitors. I think this is safer than getting the terminals very hot. but what I did was to solder a small piece of Sheet Copper folded over the edge of the female spade, This has two advantages. First it increases the gripping pressure and second it disables the locking tab so the spade can be more easily removed without ripping the terminal from the Capacitor.

B & D Bench Grinder

The wires going into the motor have really old brown rubber insulation with a cloth outer which is all falling off,  but I don’t know if I have caused any damage inside , I did stick my nose in but could not smell anything untoward, If I had a Mega Tester I could do some insulation readings. It never occured to me that the 3000RPM was uinusual, I have tried to find out about ithe grinder on line, but can’t find any information

Noel Loosing Typing

I have done what you did Noel, and lost a load of typing, sometimes I go back and look at a message I am, replying to then return to my typing only to find a big blank white square, VERY annoying. So what I have started doing is every now and again I highlight my typing and right click COPY then it is like having a BACKUP.

Trevor