Today I acquired...........

[Milkybars]

You maybe able to get the local motor rewinders to pull out the star points and give it a clean. Cost me £45 last time I got one done..far cheaper and easier than sourcing a new one
This then meand you can use a VFD

 

[brightspark]

ok if you can pick up a 415 volt transwave converter at the rite price

 

[DAPPH]

Today I acquired a late birthday present ( 21 Dec ) in the post.

ISBN : 978-1-68045-355-3 A beginners & competetnant persons 280 or so page hand book to develop their skills with Fusion 360 for Makers ( 3D printing & CNC fabrication.)

I was mesmerised , being a good boy I did as advised & read every page including the all very important preface pages . Come page 35 I stopped for some lunch , a quick bowl of homemade veg & smoked bacon soup, then straight back to where I left off .
I read page 36 and felt myself starting to get annoyed for some reason , it took me a full four seconds to realise what was wrong ….I couldn't turn the page .



Daft sod that I am , I'd had a short circuit in the brain box ..................…. it's a paper book I'm reading not my Kindle , the pages need turning by hand not stabbing at the edge with a finger . ( it's not the first time I've done it when reading paper either) .

 

[dobbslc]

I often try to lock our electrical panels with the van key remote.....

 

[Nick67GT]

i was going to buy another "big larry", but I've just ordered one of these, instead.

+1

 

[eLuSiVeMiTe]

I often try to lock our electrical panels with the van key remote.....

I try and unlock my van and hear the extractor turn on inside the house.
On a beeper too

 

[bigegg]

I often try to lock our electrical panels with the van key remote.....

i've been known to try to unlock the house door with the van blipper.

my van doesn't have a blipper...

 

[Troy]

Today I acquired a 15hp rotary phase converter, for £100 someone had purchased it with a fault and played with it and got stuck and left it , I've had a quick play and stripped alot of the doggy wiring away that had been lodged around the relay etc stripped it back to the contactor and 3 transformers and manualy adding the start cap suprisngly it runs silky sweet needs some run caps as the voltages are a bit out but I'm happy weights a stupid amount ,

 

[fizzy]

A Mill.

Many thanks to Fizzy for selling it and getting it transported to my door. The logistics were always a bigger barrier to me getting one of these than paying for it ever was.

Bolted down on four places to a hefty pallet and strapped down too. The head was wrapped in industrial cling film as well. Delivery driver was very kind. It was his last load of the day and it took a few goes to get it into the garage, there's a bit of lip to the concrete slab at the entrance. It was also tight with clearance the under roller shutter but we found a bit of "give" when we shoved hard enough. This was despite tilting the head.

The Marlow is supposed to weigh 400-450 kilos but so does that green TOS drill next to it. The picture is deceptive making the mill look much larger but I still think the Marlow weighs more.


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I don't think I can run the motor off a VFD. The photo isn't very good but it states 400v. It doesn't seem to be dual voltage so I think I will have to swap that out. I think I would like to get a dual voltage 3phase motor and play around with a VFD rather that get a single phase motor. I wont have to upset the rest of the control wiring that way.

Can anyone confirm whether the motor is no use to me?
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Skint till February 2020 now.

So pleased it got their intact. Always a worry but it wasn't very likely to tip on a nice big wide pallet like that.
I nicked the bolts out of some of my stairs so better get some replacements!
I think maybe heavier as well - perhaps 550 to 600kg. A lot more solid than a typical home mill.

 

[cheb]

for future reference, fire labels are 10 for a quid on the bay.

And get a friend to buy them for you so there's no evidence trail.

 

[Memmeddu]

Finally found someone who sells 180mm cutting discs locally
Bought 2 3.2mm IMA wheels

 

[Memmeddu]

Today I acquired a 15hp rotary phase converter, for £100 someone had purchased it with a fault and played with it and got stuck and left it , I've had a quick play and stripped alot of the doggy wiring away that had been lodged around the relay etc stripped it back to the contactor and 3 transformers and manualy adding the start cap suprisngly it runs silky sweet needs some run caps as the voltages are a bit out but I'm happy weights a stupid amount ,

Is that also a step up-converter?
I have to build one and since I'm planning to get a 9kW power generator next year I can use also a bigger motor than the 3Hp I was planning to use
I'm not sure I should buy it but I've also found a 20kW PFC and phase stabilizer (automatically operated) for cheap and should be both able to balance the output and be cheaper/faster than going to play with capacitor bank etc

 

[dobbslc]

I got this at the secret Santa we had with our friends a few days ago,

 

[zeppelin builder]

a blasting cabinet for Sfa a home made a friend made a few years ago all oxy acetylene welded ,must have took ages , it has a dust extractor built on the side , spare tear offs to protect the glass ,nozzles and a couple of buckets of grit ,bigger compressor next i suppose ? 16cfm might struggle

 

[Seadog]

I think I would like to get a dual voltage 3phase motor and play around with a VFD rather that get a single phase motor. I wont have to upset the rest of the control wiring that way.

You will have to modify the control wiring. VFDs do not like having their output disconnected when live. You will let the magic smoke out. However, it's well worth having the VFD.

 

[Memmeddu]

You will have to modify the control wiring. VFDs do not like having their output disconnected when live. You will let the magic smoke out. However, it's well worth having the VFD.

VFD isn't a good way to give power to different loads (example you are already using the drill mill and you start on a bench grinder)it will take off the power .
As same as these a VFD can't give power to a welder of any sort
A rotary phase converter can

 

[Richiew]

You will have to modify the control wiring. VFDs do not like having their output disconnected when live. You will let the magic smoke out. However, it's well worth having the VFD.

Great advice.Thank you. You might have saved me some money and grief there. I did a bit of reading up on vfds last night. As a short term economy measure I will fit a vfd directly to the motor as its is. I believe it will run with some reduced fuctionality. I'd add a link but im typing this from a phone. I think I can get the same torque but at a reduced running speed. That will allow me to get the mill running and allow me to have a play.Will get the motor looked at at a later date. Theres a good thread on here about pulling out the star points on a motor but I'll leave that to someone who knows what they're doing.

 

[eLuSiVeMiTe]

Great advice.Thank you. You might have saved me some money and grief there. I did a bit of reading up on vfds last night. As a short term economy measure I will fit a vfd directly to the motor as its is. I believe it will run with some reduced fuctionality. I'd add a link but im typing this from a phone. I think I can get the same torque but at a reduced running speed. That will allow me to get the mill running and allow me to have a play.Will get the motor looked at at a later date. Theres a goog thread on here about pulling out the star points on a motor but I'll leave that to someone who knows what they're doing.

For simplicity a rotary converter will run everything as is via the main supply to the machine.

 

[Troy]

Yes it's a step up single 240 feeds a bank of three transformers in parallel out into the motor and 3bbig unknown size caps for starting running like that phatom phase is at 385 ISH put a. 100 if cap from L1 to L3 and it stabizes around 417 just had it running my Tec arc inverter set on stick welded sweet

 

[Memmeddu]

Yes it's a step up single 240 feeds a bank of three transformers in parallel out into the motor and 3bbig unknown size caps for starting running like that phatom phase is at 385 ISH put a. 100 if cap from L1 to L3 and it stabizes around 417 just had it running my Tec arc inverter set on stick welded sweet

Can you draw a wiring diagram of your converter as I can improve my design and save me money and time?