Here is a list of all the postings Alan Waddington 2 has made in our forums. Click on a thread name to jump to the thread.
|Thread: harrison m300, spindle run out...bearings?|
Reckon if it was the bearings, your ears would be the first to know, have encountered a few M300’s with problem headstocks and every one sounded like a bag of spanners.
|Thread: Source of Aluminium Lined Plastic Water Pipe?|
I’m inclined to agree, seeing that the OP has bought a coil after i offered to send him some for free ........Oh well, i tried !
Just read your post above mine, john guest barrier pipe doesnt use aluminium as the barrier, its all plastic.
Have got a coil of unused Pex pipe 16mm, left over from when i laid my underfloor heating.......how much do you need ? PM me your address and i will send you it.
|Thread: Gloss to Flatt|
Depends on what type of paint it is. I used to use xylene based industrial paint for a particular job and for a silk or matt finish the supplier just added a percentage of a flattening agent to the gloss at mixing stage.
For small jobs using rattle cans from the motor factors i have succesfully used colour with a matt laquer over the top to get a flatter finish.
You could maybe try a small test piece first to check for finish or reaction.
Edited By Alan Waddington 2 on 08/12/2018 06:30:34
|Thread: Inverter problem|
Yup mesh is what you need
According to the plate its a star /delta dual voltage motor, so should definitely have at least 6 wires emerging.
If there are 3 wires going to the neutral point, you’re in luck, otherwise you will need to dismantle the motor and dig out the star point.
There are 3 seperate windings in the motor, so if you do have six wires emerging already, its fairly easy to work out which pairs go together using continuity on a multimeter or a battery and bulb.
Once you have the ends of the three seperate windings identified, join them as pairs i.e keep each winding seperate and connect the three phases from your inverter to the three pairs.
|Thread: J&S 540 surface grinder question|
Well a bit more progress......Sort of
Pulled the drive belt off and both motor and spindle spin freely. (Phew!)
Tried running the motor with no belt on and it works fine. So happy that motor is ok.
Think the issue is my RPC can’t supply enough initial current to spin the motor up with the belt on, the load must just be too high.
Strange really as the RPC idler motor is 3hp, and nothing bad is happening inside the RPC cabinet, no blown fuses, nothing getting hot etc.......Grinder motor just growls and the note of the idler motor changes to a stressed tone.
So guess i need to build a bigger RPC, 5 hp maybe, Don’t really fancy the inverter route for this machine, as there are potentially 3 motors running when the vac is on.
Never simple is it
Thanks Mark, think i’m going to pull the grinder out from the wall at the weekend and investigate further. Was hoping a clean up and service was all it needed, but that seems not to be the case..........bugger
Thanks for the reply’s.......when i first got the machine i powered up the head and it spun up no problem, however the head was virtually dry as the oil level sightglass was broken and the oil was thick and filthy
So now iv’e cleaned the machine up a bit, changed the hydraulic oil, replaced the sightglass and put fresh oil/kerosine in the head, removed the table and cleaned out the oil feed holes etc.
Also manouvered it tight against a wall ( A pig to move) and levelled it up with shims.
I tested it yesterday and the spindle motor seemed to be having trouble starting, Lots of humming and sparks coming from the contactor, so i stripped out the contactor, cleaned up the contacts and away it went.
Played about grinding things for approx an hour to get a feel for the controls etc. The head was just warm, not hot. Turned it off and then tried to restart, but no chance. Wired the motor direct and it still wont spin up, it just hums.
The spindle feels tighter than i would have imagined, so am guessing either spindle is tight or motor bearings are shot. Was trying to avoid having to move the machine again, but motor and belt access is from the rear, so looks like i will have to.
Something else im not sure about too. The oil catching resevoir tube in the head had another tin split tube clipped over it, which seems to defeat the object as it would stop oil from getting caught in the trough and looks a bit home made......Any ideas ? See pics
Anyone out there have a J&S 540, am wondering how freely the wheel spins when not under power.
|Thread: Colchester Master 2500|
Alan, have you removed the lathe end panel and checked that all is well with the change gears etc.
The whole gearbox and in turn both lead screw and carriage drive are fed from there.
Have had both shafts out of my student 1800 in the past, but for the life of me i can’t remember how they actually picked up the drive from the gearbox
On my old Harrison you had the option of stopping the shafts driving by turning a knurled sleeve where the shafts entered the gearbox, but fairly sure they are not present on the Student.
Unfortunately i cant get to my lathe at the minute to inspect.
May not help but here is a cutaway of the gearbox
|Thread: Belt driven drilling machine|
Strange , this is the message i get........
alspeed, you do not have permission to access this page. This could be due to one of several reasons:
I’m a member of TT, but still can’t view the images in the ‘for sale’ section.......Think you have to contribute to the forum financially to be worthy
|Thread: RF 31 BENCH MILL DRILL|
Yeah as Simon suggests, i reckon MT3 would have been an alternative to R8 from the factory, not a retro fit item.
R8 is really a better system for milling than MT, and as it was widely used in industrial machines, Bridgeport etc, there is a wealth of secondhand tooling about.
What parts do you need Ray ?
|Thread: What did you do Today 2018|
Cleaned out the surface grinder oil tank........ Reckon it might have been just a tad overdue!
|Thread: Mystery Spindly thing|
Interesting Andrew, there was a cylindrical grinder and a blanchard grinder all close together, with bits and accessories from each thrown everywhere and anywhere.
Unfortunately they had all received a hideous coat of puke green gloss at some time in the past, so not easy to work out what bits belonged to which machine
There was much debate amongst the three purchasers about a casting with a flat base to bolt to a bed, and a bored clamp hole suspiciously similar in size to my mystery spindle.
It was decided it probably belonged with the cylindrical grinder. I found the spindle in a cupboard once i got my grinder home, so it now looks like it should have probably gone with the other machine.
Came free with a surface grinder.........A spindle of some description, spins very freely, but can't see how it would be used or driven ?
Any ideas folks ?
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