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Member postings for Chris Evans 6

Here is a list of all the postings Chris Evans 6 has made in our forums. Click on a thread name to jump to the thread.

Thread: Work holding on a rotary table
12/12/2015 09:50:37

As a previous thread a slave plate with lots of tapped holes clamped to the rotary works well. I have two 10" tables and find even at that size clamping some jobs is a challenge without the slave plate. Any bigger rotary and I would struggle to lift it !

Thread: Kearney & Trecker.
12/12/2015 09:45:06

Have you had a quote to move it ? I used one many years ago and they are very heavily built. Seems like overkill for a home workshop but a very nice machine, it will be a bit like riding a cart horse compared to say a Bridgeport turret mill.

Thread: Formulae required
11/12/2015 21:06:22

Les, that set up is how I used to produce the dies for oil and fuel filter housings. The dies I made had a round form but the principal was the same just rotated on the rotary table. Providing the wall section was OK no one measured the end result ! CNC now does it better and with great accuracy. Chris.

11/12/2015 20:07:55

If you have CNC why not program a cherrying operation in Y Z and peck along the X axis ? I have used a boring head as you show and had good results also used a Cherry head on the Bridgeport.

Thread: Jones&Shipman 540
11/12/2015 09:40:54

If you can see it under power listen carefully to the wheel head, it should be very quiet. Head rebuild is circa £2000. Let it run for 30/40 mins to see if it gets hot. Lift the rear belt cover and check the belt, it should be a felt backed one on an older machine. The later (yellow) poly belts are not kind to the older oil filled heads. If any spare wheel arbours are with it have them as they are costly and having a selection means you can leave wheels mounted up. If it has not run for a while expect the hydraulics for table travel to be sluggish until warm. Budget for an oil change. Ask if the transportation frame is still with it to make moving easier. Unless really abused they are bomb proof.

Thread: Naerok 350 mill/drill
10/12/2015 19:42:59

The first and only time I have seen one was when a friend bought one. Sadly he passed away before retiring and never used it. (Naerok is "Korean" spelt backwards) This was over 15 years ago and the machine was a round pillar affair like a glorified drill press.

Thread: Rotary table for mini mill
10/12/2015 19:36:51

You can extend the smaller tables capacity by bolting on a disc or plate when required. I have a piece of flame cut and ground mild steel about 15"x8" that I bolt on to my 10" table as required this enables me to swing large radius. Lots of M10 tapped holes in the plate for fastening makes a useful addition and easy to store.

Thread: bridgeport mill table feed wiring diagram with erskin pd/1114/01/b control unit
09/12/2015 19:46:41

Clive, thanks for the response. I will try that out, I only require the 110 volt output for the traverse and I will disconect the 50 volt lighting as well now I run 240 volt machine light.Chris.

09/12/2015 17:00:55

Clive, I have had a look in the cabinet and you are correct. It is at present wired on 0-440.

As the motor is now wired directly to the VFD is it really as simple as feeding 220/240 volt supply to the transformer ? If so is it sensitive to live and neutral, I would connect the earth to one of the existing earth points. As you can see I am not happy working on more than spurring off a socket to add another. Chris.

Thread: Milling machine for 10-1/4 in. gauge
09/12/2015 15:15:50

If you have the space/budget a Bridgeport or one of its clones. I would not like to be without my Bridgeport.

Thread: bridgeport mill table feed wiring diagram with erskin pd/1114/01/b control unit
09/12/2015 10:24:04

Clive, thanks for the info I will look into that. I did have the traverse working when I hooked the mill up to a Transwave static converter but the mill would only run for around 7 or 8 mins. and then stop. A friend wired the VFD for me and it has been perfect since. If I can use the existing set up it will save me £280 for the 240 volt traverse.

Thread: Steady rest - metal or roller bearings ?
09/12/2015 10:09:02

If you want to use roller bearings try Simply Bearings the web page is very good. You could use 2RS rubber shielded bearings to stop swarf ingress. Me I am happy with bronze pads I only use a steady a couple of times a year.

Thread: bridgeport mill table feed wiring diagram with erskin pd/1114/01/b control unit
08/12/2015 14:39:15

I have had problems when at work that turned out to be a sticky rapid traverse button. Worth a look ? I am getting tempted to remove the traverse set up from my Bridgeport and replace it with a 240v version because I do not know how to wire it up now the machine is running on a VFD so I only have motor control.

Thread: Extending thread on stainless steel bolts
07/12/2015 13:04:56

Just persuade him to buy hex head set screws, they are threaded to the head.

Thread: Welding Help for Building a Printing Press
06/12/2015 20:40:31

David, I think you will find 19mm bearings cheaper than 3/4". I find imperial size stuff is getting pricey now it is not used often.

06/12/2015 09:48:50

As above, skim in the lathe including the main roller if required. A job like this is not size critical. Make bronze bushes to suit the new spindle size or sleeve the spindle to suit roller bearings if that was your plan. I would not make it again.

Thread: Workshop anti condensation heater.
05/12/2015 14:37:57

A cheap and easy option is a fan. I tried a dehumidifier and was emptying 2 or 3 litres a day, it was then I gave up and find that a fan running is all that is needed to move the air around.

Thread: Oil reservoirs
04/12/2015 09:39:16

Well I had a very prompt quote for an A4 size piece of 6mm felt. £15 I can live with that, but £13.84 postage; no thanks.

Thread: Has anyone ever tried this?
03/12/2015 21:56:15

Philip, you where a long way from me in Brum. Happy days and a very good training at the GEC. I did six years as an apprentice toolmaker and still can't see how modern apprenticeships can be done in three years.

Thread: Oil reservoirs
03/12/2015 20:01:43

Thanks for the link Grizzly, I have sent an enquiry. I never found them when I searched before.

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