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Member postings for Roger Williams 2

Here is a list of all the postings Roger Williams 2 has made in our forums. Click on a thread name to jump to the thread.

Thread: 115 V DC Motor lathe powerfeed?.
04/09/2013 10:20:38

Hello Mike, looked at the PM page you noted and according to Larry Vanice, mine is a shunt wound unit so will need DC power, if it had been series wound, would have run off AC as well. You are right, some people on the PM site, bloody hell !!!!. I might call in and see the old gentleman I bought the motor off and see he has something to power it. Anyway, motor details,

Type NSH 12RH , No 438ZDO.70, Volts 115, Amps 0 .33, Hz DC, HP 1/50th, RPM 1725,

Duty CONT, FF1, Ins A, Torq 11.7 lbs ins, RPM 43, Ratio 40:1.

Thanks, Roger

03/09/2013 18:35:02

Hello Dias, the way youve described and Mike as well, seems to be the way to go. Thank you.

Hello Eric, I live in the UK which 240v AC. The DC motor I have is a lovely little unit, made by Bodine of Chicago, unused I think, which would be perfect if I could get a 115DC powersource !. It also has 4 wires coming out of it, which complicates things a bit more. As an aside, the chap I bought it from ( I must have a chat to him in case he knows of a powersource), is 96 years old,and during WW2 , was on the liner Brittanic going to Canada, escorted by the battleship Rodney and 5 destroyers, when the Hood was sunk. Rodney and 4 destroyers buggered off to help sink the Bismark, and left just 1 destroyer as an escort, but they made it to Canada unscathed !. The most interesting ( and lucky) bloke Ive ever had the pleasure of meeting.

Thanks for your interest, Roger.

02/09/2013 18:45:52

Mike, thanks for the info,

Roger.

02/09/2013 13:27:45

Hello Mike, I cant fit a fine feed cluster because there isnt any room for one unfortunately.I wouldnt mind going the stepper motor route, but again, dont know much about them regarding the electronics bit. So perhaps the wiper motor is my best option. Regards, Roger.

02/09/2013 11:18:20

Hello, have an ML7 that needs an independant carriage feed fitting to the leadscrew handwheel end, the problem being, which would be the best motor to use ?. Many years ago, I made a screw cutting gearbox for it from one of the designs in ME, which enables it to cut threads from 7 to 26 tpi, works a treat, but I lost the fine feed facility for the self act, hence the above question.I have 2 motors available, a 12v wiper unit and what looks like a new 115v DC motor ,1/50 hp with a 43 rpm reduction output, but have not a clue how to power it !.It looks the nicer unit, but if I cant power it ,will use the 12v one. Can anyone help please.

Thread: Accolade to suppliers
16/08/2013 20:14:22

Hello Neill,its just off the A 5190 Cannock Rd , in Cobbett Rd.Nearer Burntwood than Cannock I think.WS7 3GL. I only know the way from Litchfield , from the A5 turning right onto thr A5195, A5190 Miners Way, a few islands and its on the right there somewhere.hope you find it, Regards, Roger.

16/08/2013 17:53:11

Hello all, Tracy tools are a good place to deal with, very friendly and helpfull and must have more taps and dies than anywhere on earth !. Another excellent place if you are up near Cannock, is Tracey Machinery.Secondhand lathes, mills etc, small to massive. They also have a lot of machine vices, QCTPosts and chucks etc of every shape and size.The best bit is if you meet John there, who was a Cincinatti service engineer before he retired, and although in his 70's, still works on the equipment in there and very knowledgable to boot. Brilliant bloke ( these John's are, arent they ! l. Cheers.

Thread: Excellent TOS Lathe video.
10/08/2013 18:35:59

John, gotcha !. Its all a bit clearer now. Did you ever try out this method on your lathe before you scrapped it ?.

10/08/2013 18:04:30

Hello, stumbled onto this U tube video by mistake. Its called Internal Milling Under Power on my TOS lathe, YES ! by Michael Reggie. Its about milling grooves in a tube held in a fixed chuck, with an angled milling cutter held in an electric drill powered spindle held on the topslide, with the headstock in neutral but carriage on powerfeed !. He says the TOS lathe is unusual in this respect, but perhaps this operation could be done on any lathe where the spindle can be set in neutral ?.

Anyway, see what you think. Cheers.face 9

 

And the link is  http://www.youtube.com/watch?v=iSVclhnpBcc

Edited By John Stevenson on 10/08/2013 18:12:31

Thread: Crobalt Tool Alloy
24/07/2013 09:59:18

You can use a reel of hard facing wire on a Mig welder as well. Spent many a happy hour hardfacing Cat Bulldozer scarifier ploughs with one. You could do make your knives and forks last longer as well face 4

Thread: HSS Threading Inserts Kits.
23/07/2013 20:12:45

John, Ian, thats why I fancy HSS Inserts, like the Arthur Warner ones, but am a bit concerned about postage and perhaps import duty from the US. Im about to make a Swing Up toolholder to John Stevensons design and thought it would be nice with some decent insert tooling instead of the hand ground i.e, not very good, threading bits I have now.But asI said originally about peoples bad experiences with carbide in the homeshop , they certainly have their disadvantages. Cheers.

23/07/2013 10:03:41

Hello all, thanks for the replies. Douglas, yes, Ive looked at Greenwoods 2 or 3 times and cant find them. They do carbide ones that look good, so I will have some of those instead. Thanks.

Edited By Roger Williams 2 on 23/07/2013 10:10:28

22/07/2013 10:15:13

Hello Douglas, thanks for the tip about Greenwoods but unfortunately they dont do HSS ones. I did think about getting carbide inserts, but have read of so many people having trouble with them in the home shop environment with the tips breaking during threading, it put me off. I did try some brazed carbide threading tools, but they were hopeless. I will have to carry on grinding the old way I suppose with HSS lumps !.face 8

20/07/2013 17:54:51

Hello Andy, thanks for the info.Im a bit wary about import charges, so I will keep trying to find a UK supplier. Cheers.

20/07/2013 14:14:13

Hello, does anyone know if Arthur Warner HSS threading inserts are imported into the UK ?.. This is an American company that sells HSS turning and threading insert kits. Perhaps a company in the UK markets their own brand ?.

Many thanks.

Thread: Engineering videos
30/05/2013 21:36:19

Hello all, what fantastic videos from FactoryDragon87 !. Brings back memories for me, because a few years ago I had to do a similar job , ie, split a Valmet forwarder in half, incidently a Valmet 860 which was a bigger beast altogether with similar bearing damage. Two 8 inch bearings had broken. However, the machining work was carried expertly out by someone else, on a massive DSG lathe. I just had the job of fitting it all back together !. I believe the forwarder was sold a few years later to someone in the Soviet Union, with a cracked crane base to boot. Oh happy days !!. Cheers.

Thread: DSG Motor, again.
11/05/2013 19:34:03

Hello again, thanks for offer Clive, John, yes I would need the DSG to machine the pulley. I have a Hardinge HLV-H as well, but wouldnt be able to do it on that. Anyway, an update on the saga. Ive removed the old bit of motor shaft and it certainly looks like he chopped off the pulley and shaft as one.Ive put some photos in my album and you can see how he seems to have bored the lot together because of the machine marks on the key !. You can also see the dings on the pulley as well. What I dont understand though, is there is a 10mm by 1.5 mm pitch thread in the end of the new motor shaft, so why didnt he drill a hole in the old shaft bit, and pull the " adaptor " up to the end of the new shaft, with some bearing fit Loctite, with a nice Allen bolt. To my mind, if he had used his brains, it would have been OK. For extra security, perhaps another grub screw opposite the other one. So what do you all think, make a new sleeve with a tighter fit , a keyway for the pulley, and go from there ?.Hope you can see from the photos what Im on about. By the way John, even if I could modify the pulley for a Taperlock, I would only have one go at it, so if I made a mistake, I would be in deep s*it. Regards to all, Roger.

11/05/2013 16:57:31

Hello, thanks everyone for the replies. Ive managed to get the pulley off, 8 inch diameter by the way, and it was very tight, leading me to suspect that because of the damage ie, big hammer marks on BOTH sides of the pulley, he couldnt remove the pulley from the old motor shaft, so he just chopped it off, with 3 inches of shaft still inside it, somehow bored it out. If it was the original motor, it would have been on there 52 years !. I will try and post some pictures when I get the " adaptor " off. Another thing that shocked me, excuse the pun, about the job, was that out of the many stranded earth wire connection on the new motor housing, only 1 strand was between me and death. By the way John, you say you do thousands of these conversions, how exactly do you do them ?. I think I will end up doing it as Stub suggests unless you can show me an easier way.Again , thanks to all for your help,

Roger.

11/05/2013 10:35:14

Hello John, thanks for replying. Im located in Teignmouth, Devon. Im not a machinist myself, so am a bit unsure the best way to do the job, presumably some sort of bush with a key slot on the outside and another on the inside, a bit beyond me I think !. Ive got machines to have a go, but thats as far as it goes. Now if you fancy an ice cream, and a look at some half decent motorcycles !!!!!!!! Roger.

11/05/2013 09:42:21

Hello all, a few months back, I asked about the electrics on my DSG13/30 lathe, well I have another question, this time about the motor.When I bought the lathe , a new 5 hp TEC motor had just been fitted at the factory that previously owned it and to cut a long story short, had fitted it very badly.Not only sloppily bolted to a bit of plate on 3 spacers, the 4th perched on the lathe bed below the headstock, ???. The drive pulleys were 3/4 inch out of line, but worse, the pulley was loose on the motor shaft.

The new motor shaft size is 28 mm, the old, 1 3/8inch, just over 1/4 inch smaller. Im just in the process of trying to get the mutilated pulley off. It looks like the chap (##ob) sawed 3 inches off the old motor shaft, bored it out 28mm, but oversize !!, bashed it back into the pulley and ploncked the whole lot onto the new shaft, drilling through the " new" reducer, and securing it all with a grub screw. Ive got a nasty feeling that the shaft has been damaged by the pulley being secured axially, but loose.Because he mangled the pulley boss fitting it to the bit of old shaft, its on that bit rather tight !!.Right, to the question, to have saved all this heartache and disgusting language, are there reducers or adaptors available for the changing old motors for new ?. I emailed TEC, but had no reply. Many thanks.

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