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  1. H

    3 phase motor problems

    Thanks for all of your advice Bob. I shall now go into the inverter programme and try to match it to my motor. At last I can do some more turning. Fred.
  2. H

    3 phase motor problems

    Thanks for that advice Bob. The motor was second hand when I got it and the motor rating plate had been removed so I can't check anything. I was only told it was a 1KW job by the company that supplied it together with the now defunct inverter. Can I assume from your reply that it is unwise to...
  3. H

    3 phase motor problems

    Hello again to the forum. At last I have received, mounted and wired up the LENZE inverter and it works fine. I also managed to find the two terminals to provide a reverse function by studying the hand book e mailed by a helpful customer services lady. I need one last bit of advice to make...
  4. H

    finding studs/ joists etc.

    In connection with feeding light weight cables behind dab and plaster walls, I recently saw a lighting engineer use his favourite method. Drill the hole in the wall, feed in a length of string with a small nut/washer tied to it for a bit of weight and put a vacuum cleaner hose by the hole in...
  5. H

    BALLS! and how do you hold yours?

    Try this method, I find it is almost foolproof. For say a 3 inch dia ball, mount your timber between centres and turn it down to 3 ins dia then mark off a 3 inch long section. With a parting tool cut each end of this section down to a 1/2 inch (or smaller if you can manage it) spigot at...
  6. H

    Grinder Help

    Adam, now that you have the grinder don't forget the dressing stick - a most important bit of kit. The front of the wheels have to be kept flat and sharp. When the surfaces looks shiny and has black bits ingrained you need to dress them. The sticks are available from Axminster and cost about...
  7. H

    Egg cups

    Knappers, you are obviously hollowing into the end grain of your chosen timber. I find it is much easier in end grain to use a "pull cut" from the centre to the outside. Drill a hole with the spindle gouge (on dead centre and horizontal to the bed) and just push it into the timber to the...
  8. H

    Reversing a 3ph motor.

    I'm back again after zooming in on the Jaguar drawing and finding the digital input and the Fwd and Rev notations. However, not being too clever on electrics and having no knowledge of electronics I don't really understand what a digital input is or where a low voltage supply would come from -...
  9. H

    Reversing a 3ph motor.

    Thank you for all those contributions, what a great forum this is. I will look out for those connections mentioned and now that I have won the bidding, the inverter should be with me in a week or so. The motor is a 1HP job by the way. I did try to phone LENZE in the UK but once it was...
  10. H

    Reversing a 3ph motor.

    A question for Bob but anyone else with the relevant knowledge please chip in. The LENZE inverter that I am bidding on doesn't have a motor reversing facility as far as I can gather from their web site. It is very handy to be able to "run Backwards" when wood turning/sanding so I'm keen to...
  11. H

    3 phase motor problems

    Thanks for the input Bob. I have now found one on E bay being bid on at £75, a new one of that type (Lenze") costs about £350 so I will try and get it and give up on the current one. I can see it might turn out to be a long and costly job to diagnose and repair it.
  12. H

    Moisture content question

    Don't give up on your stash just yet. As "wet" wood (wood recently felled) dries, the moisture it loses is what you might call sap and this comes from all of the cells throughout the wood. if the wood in your stash was dry or getting dry then a lot of that natural moisture would have already...
  13. H

    3 phase motor problems

    I had another look and listen today. I took the drive belt off the motor and just ran that. Same intermittent rumbling noise from the motor which seems to occur only when the speed is fluctuating but definitely not the bearings, it runs very quietly until that happens. The motor runs up...
  14. H

    3 phase motor problems

    Many years ago I converted my Turnstyler wood lathe to a speed control version by purchasing a ready made electronic kit and changing the original 1ph motor for a 3 ph one. Last week I noticed that there were loud rumblings coming from the motor/drive belt area but couldn't pin it down. There...
  15. H

    Connecting a NVR switch

    Morning Dave, thanks for the reply. There is no "stop" switch in this set up just the NVR switch with start and stop buttons and the start capacitor. Can I assume that the spade connectors on the live and neutral wires (which I can trace back to the power cable) go to the "IN" terminals and...
  16. H

    Connecting a NVR switch

    A friend has disconnected a NVR switch on a power saw without noting where the spade connectors were joined. The none starting problem has been diagnosed as a faulty start capacitor and the switch has to be re connected. The only marking on the switch is on the back of the casing and is...
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