New member, Lagun Mill

**Smokie555** · 29-09-2016

Despite it being a good sized machine I normally only cut alloy and even then its mostly light plate etc but its always nice to have the extra capacity for when its needed. I'm not so worried about the extra's as we never include them in good projects in case the wife see's the bills but I agree that these can easily double the outlay. I was considering grafting one of those alloy Z axis from CNC4YOU and using a high speed cutter to avoid my knee moving problem but it’s hard to give up the rock solid ridgity of the current machine plus the use of all my 30 INT tooling. I'm going to drop into my local used machinery dealer and see what he's got anything more suitable for a swop deal. Thanks again for the replies.

**njhussey** · 29-09-2016

Or make your own Z axis from Ali tooling plate to bolt on where the current head goes and use a 2.2kW spindle for cutting Ali, then you've got the original for steel. Would be a bit of a pain having to set up every time but I guess depends on how much you'd use the 2.2kW compared with the original?

**Smokie555** · 29-09-2016

That might be the best route Neil, I must search he forum and see if anyone else has made one to copy. You said about using 230v drivers for the steppers, I assumed they were all 230v input? with lower voltage outputs in the 24-80 v range, is that correct?

**njhussey** · 29-09-2016

Originally Posted by Smokie555

That might be the best route Neil, I must search he forum and see if anyone else has made one to copy. You said about using 230v drivers for the steppers, I assumed they were all 230v input? with lower voltage outputs in the 24-80 v range, is that correct?

It depends on the voltage of the drivers you're using. Most drivers that come in the eBay kits are up to 48V, drivers like Leadshine AM882 (now superseded buy AM806 drives I believe) will handle up to 80V but you have to take back EMF into account so dont run at more than 72V, mist on here will power these with a DIY PSU that gives out 72V....

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**Smokie555** · 05-10-2016

I've taken on board everything above and looked around for something more suitable than my Lagun. I've been offered a Bridgeport Interact Series1 Mk2 that in in good nick but has faulty electric's. I might be able to do a deal to trade my Lagun against it and wondered had anyone converted one of these to Mach 3 and modern electric's?

**njhussey** · 06-10-2016

Originally Posted by Smokie555

I've taken on board everything above and looked around for something more suitable than my Lagun. I've been offered a Bridgeport Interact Series1 Mk2 that in in good nick but has faulty electric's. I might be able to do a deal to trade my Lagun against it and wondered had anyone converted one of these to Mach 3 and modern electric's?

That's a perfect machine to drop modern electronics in.......

**Smokie555** · 13-11-2016

Well guys the Lagun is away and the Interact is in the garage. It was confusing at the start because as soon as you powered up, the spindle ran? I couldn’t stop it or control its speed as it didn’t respond to the tool call/stop etc commands. Finally I changed 2 of the supply phases around as the spindle was always turning backwards on start up and that really helped as I could now control the spindle on and off and the speed, I even managed to do some milling manually which was great.
The problem now is she keeps tripping the RCB in the garage which I swopped from a 100mA to a 300mA job but it didn’t help. Unfortunately it's not 100% consistent, but the pattern seems most often when I move the X axis but sometimes it as soon as I press the orange power enable button.
I find it odd that there’s no neutral connection on this machine and I wonder if it’s using the earth as its neutral and is this triggering the RCB? I’m running off my 5.5Kw rotary convertor and never had tripping problems with the old mill which I think had a neutral. Any idea’s