By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for ronan walsh

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

Thread: Jones and Shipman 540
22/09/2018 23:59:17
Posted by Muzzer on 22/09/2018 23:11:57:
Posted by Pete Rimmer on 22/09/2018 21:37:43:

If you fit a VFD you could change the pump motor for a single phase one. I did that.

It's quite a simple matter to run a existing 3-phase pump from single phase by connecting the third phase through a motor start cap. Plenty of info out there if you search for it (how many uF per kW etc). Saves having to change the motor. It will work even if you can't find the start point but even better if you can, assuming it is 415V to start with.

Murray

Murray

Yes, i did that with the suds pump on the lathe, works fine.

20/09/2018 19:38:02

Thanks for the replies. I am not sure how old the machine is, apparently it was in a workshop and not used for a long time. Sitting in a corner covered in dust. I hope its a later model so i can use a VFD as they are so convienient to set up and use.

Thread: Spindle bearing Colchester Chipmaster
20/09/2018 00:34:08
Posted by Nick Taylor 2 on 19/09/2018 23:02:19:

Ah if you’re referring to the newer square ‘Mk2’ machines then I agree, they obviously made a choice during the design and focused on price heavily. A friend of mine runs a predominantly CNC business but needed a large swing centre lathe and looked at a few Colchester’s, finding machines less than 5 years old which were complete wrecks!

The Roundheads seem to command much better prices though!

Indeed Nick. At work years ago, a decision was made to buy a cnc lathe. A colchester was selected, despite the objections of the turner who had to use it, the manager of the machine shop, and even me. We were proved correct shortly after it was installed. The thing would not hold much of a tolerance.

The company who sold it were called back out. After much head scratching, fancy measuring kit being used, too-ing and frowing, it turned out the bed was badly bent. It was a brand new machine fresh out of the crate.

Thread: Jones and Shipman 540
19/09/2018 21:25:32

I might be buying a J&S 540 surface grinder in the not too distant future. as per usual with most old ex-professional machinery, its three phase. Does anyone here run a 540 ? And if so how do you power it ?

The usual VFD, or VFD's ?

Thread: Spindle bearing Colchester Chipmaster
19/09/2018 21:20:26
Posted by Nick Taylor 2 on 19/09/2018 13:15:53:

Ronan – not sure scandal is the right word. The bearings are expensive because of quality. Also don’t forget we are talking about a 60+ year old design here, the fact that there are spares at all is impressive.

Sorry i have a very low opinion of colchesters, having used them for many years professionally, and foolishly taking one home, free from where i was working. Should not have done that, noisy rattly thing with a rapid wear bed.

Someone told me the old round head machines were better, i do not know, but i avoid colchester now at all costs

18/09/2018 22:08:35

The price of spares for colchesters is a scandal, one of many reasons not to buy one.

Thread: What has happened to fly spray?
17/09/2018 00:12:26

Nothing does what it is supposed to anymore, paint stripper does not strip paint anymore, fly spray as far as i can tell is deodorant for fly's underarms. Seeing as terrorists use all sorts of ordinary household products to make explosives, i would not be surprised if in the near future you need a licence to buy a pint of milk.

Thread: bridgeport spares stockists
06/09/2018 14:58:35
Posted by larry phelan 1 on 06/09/2018 13:44:12:

Dont know if this would be of any interest to Members wanting stuff from America,but we have a service here,operated by our Post Office,whereby we can have stuff delivered from America to our local Post Office for a very moderate charge. I have not used that one yet,but I have used the service from UK,where the delivery cost was way over the odds,in one case £12 ! I had me goods delivered for 3.50 Euro ! You can do the Maths yourself.

If it would help to have your parts delivered here and have them collected perhaps by a friend visiting,I would be happy to assist. I,m sure something could be worked out.

Is that addresspal Larry ?

06/09/2018 13:06:46

Thank you all for the replies.

05/09/2018 21:12:55

Who is there in the UK, or possibly Europe, that stocks Bridgeport spare parts ? I have tried dealing with Sorted in Bristol, absolute nightmare and would not bother with them again, and another company, Goodwin i think, who wanted £30 P+P for three grubscrews, ditto.

I know you pay over the odds when you are a one man band or hobbyist trying to buy off professional outfits, but thats taking the wee.

I only need a handful of small fiddly parts to have my Bridgeport/Tom Senior finished, in time for a few winter projects.

There must be somewhere in Europe that can supply parts efficiently and not be a rip off ?

Thread: Work done with limited equipment
03/09/2018 22:08:21

Well one of my interests, shooting, has led me to look at some of the high end shotguns out there. Most of the older British, Belgian, Italian and Spanish guns, were made with little more than hand files, hammers and chisels, and very limited machinery such as maybe a pillar drill.

All changed now of course, machinery takes away a lot of the drudgery , but old fashioned hand tools still have their place.

Thread: Tailstock tapping chuck
31/08/2018 20:22:47
Posted by roy entwistle on 31/08/2018 14:38:50:

Ronan Coventry die head for a tap ??

Roy surprise

God yes, don't know what i was thinking.

31/08/2018 13:04:53

Coventry die head ?

Thread: ABB ACS50 VFD
29/08/2018 20:11:46

I have it sorted now, a chap on another forum told me to connect the two sides of the switch using a diode. I had done this before with a piece of wire and all it achieved was reversing the motor, no matter which way the switch was turned it still turned the same way.

I scavenged an LED out of an old radio, put it across the terminals of the switch and hey-presto, it worked. Turn the switch one way-clockwise, turn it the other way-counterclock.

Thanks to all who assisted and took the time to answer my questions.

29/08/2018 17:08:46

Thanks for all the help and kind offers, I will work my way through them tonight and see if i can get the thing to work as i would like. I am sorry i bought ABB, they are not user frendly to say the least, the manual is a joke, and the company unhelpful.

28/08/2018 22:49:35

Thanks john, its as much use as a chocolate teapot i am afraid. It shows a circuit diagram for the control wiring that does not seem to work.

28/08/2018 22:36:44

Does anyone have a vfd the same as the make and model of the title ? I am having endless difficulty wiring it up to a switch so i can run the motor it controls in both forward and reverse.

The motor is on a bridgeport head, so i need to run it both directions.

Thread: Bridgeport 2j speed adjustment
25/08/2018 19:11:21

i think i found the trouble, there are two clamping bolts that go into the movable sheave on the motor shaft to take the tension off the spring. I thought they were supposed to be there, so i have removed them and things have improved. But it turns out the speed indicator plate on the front of the head is the incorrect one for my head. So i will have to find and buy one.

25/08/2018 18:22:31

Thanks fellas, yes i know that much. What i need to know is how do you adjust the screw in the centre of the head, on the top that controls how much the front sheve opens and closes ? I have a situation where when i wind the handle the spindle speeds up, and then slows down again even though i continue turning the handle in the same direction.

There must be a method or procedure on how to adjust this system.

25/08/2018 16:39:24

I fitted a Bridgeport 2j vari-speed head to my Tom Senior mill during the summer. The head is a heavy old lump, about 180lbs so no way i could lift it by myself and my shed to too low to use a hoist or lifting gear.

So i split it into two separate pieces, the upper and lower. Having now got the whole thing back together, aligned, trammed etc, and i am starting to run the machine, there is an issue with the speed selection of the spindle.

It is controlled by a handwheel which you wind in either direction to raise or lower the speed. I do not know how to adjust this particular feature, there is no mention in the manual.

Would anyone happen to know how to do this correctly ?

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Eccentric July 5 2018
Rapid RC
Eccentric Engineering
cowells
Dreweatts
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest