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Member postings for Jim Nic

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

Thread: The Workshop Progress Thread 2020
05/04/2020 16:31:31

Having completed the Muncaster Double Acting Oscillator I had no next project lined up. Looking at my collection of engines I saw that I did not have a horizontal mill engine other than trunk guide crosshead type. Soooo I thought that Stew Hart's Dad's and Lad's Mill engine would be a fairly straightforward job for me and I could add some of my own "enhancements" to it along the way.

I gathered together some materials from the come-in-handy bin:

materials.jpg

and set to. First stop is the cylinder:

cylinder 2.jpg

cylinder 3.jpg

and already there a couple of enhancements, the cylinder base having visible mounting feet and the piston rod gland, and a upcock which is trickier to see. I have made the cylinder with the inlet ports on the wrong side. Putting the cylinder head on the other end would correct it but I'm not too sure about the concentricity of the piston rod to bore if I did that so it is staying as is.

Jim

Thread: Piston Clearance ( Economy Engine )
25/03/2020 22:28:16

Bump

Thread: The Workshop Progress Thread 2020
24/03/2020 19:27:39

That is indeed coming on nicely George. I have seen this engine in the past and not been too keen on it but yours will be a great looking model for sure.

Jim

Thread: The Home Workshop Dictionary - FREE E-BOOK
24/03/2020 19:21:43

I, too, failed to "read the question" and thought that Amazon were pulling a fast one and trying to get me to subscribe to Kindle Unlimited so I passed on the Dictionary.

However, while I was on I noticed that Amazon had the Norden engine book written by Neil and since I am slowly getting together the wherewithal to build one, I bought that book instead.

Now that I see that I had jumped the gun on the dictionary I'll get that tomorrow. Thanks Neil.

Jim

Thread: The Workshop Progress Thread 2020
01/03/2020 12:11:15

Jason thanks for fixing the link. I always have a battle getting them to work but I thought I had cracked it this time as it worked OK for me.

Jim

29/02/2020 21:43:40

There now follow some still pictures and a vid of my finished Muncaster double acting oscillator:

finished 1.jpg

finished 3.jpg

finished 7.jpg

 
My thanks to Geoff Walker 1 for generously gifting me some drawings and a cylinder casting for this engine. I hope I have done it justice.
JIm
 

 

Edited By Jim Nic on 29/02/2020 21:45:05

Edited By JasonB on 01/03/2020 06:54:57

29/02/2020 21:13:35
At last I have finished Muncaster's double acting oscillator and when I figure out how to get my u-tube video linked I will post it and some pictures.

 

Jim

Edited By Jim Nic on 29/02/2020 21:17:57

Edited By Jim Nic on 29/02/2020 21:19:08

Edited By Jim Nic on 29/02/2020 21:19:21

Edited By Jim Nic on 29/02/2020 21:19:34

Edited By Jim Nic on 29/02/2020 21:21:37

Thread: Silvers soldering
22/02/2020 23:10:04

Paul

I don't know how Jason removes Tippex, but I find that what I use easily comes off along with any burnt/dried flux residue in the pickle bath and after with a scrub with a toothbrush. (Don't let on to the better half whose toothbrush you use for this.)

Jim

22/02/2020 14:44:59

I use a coat of Snopake typing correction fluid where the solder is not to flow. (Note that this fluid will not correct machining errors!)

Jim

Thread: WM18 - Broken it again :(
18/02/2020 11:35:34

To answer the OP's question I can advise that 3 years ago I foolishly cooked my lathe motor in a similar way by cutting a large diameter bar of unknown, but tough, steel at too low a speed for too long. The resulting lack of cooling made the motor far too hot to touch even 15 minutes after it gave up the struggle. The cost of a replacement from the machine supplier was close to £150.00.

Jim

Thread: Ron's Jowitt Popett Valve Engine
17/02/2020 10:35:21

Hi Ron

As Jason says I built a Jowitt from his plans.

finished jowitt 7.jpg

You may see the resemblance. Being a bit careful with a penny, I made the flywheels rather than buy in a pair of castings. The wee brass pulley came from my come-in-handy drawer.

Jim

 

Edited By Jim Nic on 17/02/2020 10:35:48

Thread: What Did You Do Today 2020
13/02/2020 14:59:51

Nice little grey handles Derek, what are they made of?

Jim

Thread: The Workshop Progress Thread 2020
29/01/2020 20:37:57

George, Stevie and Geoff

Thanks for the kind words, after that I'm tempted to leave it as is.

My compressor is a Bambi, not the silent type as the ones I saw at the time I needed one did not have a very big free air delivery rate. It is quite compact though and has a decent size receiver so once it's up to pressure it will run this engine at a slow speed for ages before it kicks in again.

Jim

28/01/2020 21:29:00

Some more progress on the Muncaster double acting oscillator engine.

All of a sudden I now seem to have the major parts completed so I did a trial assembly

initial assembly 1.jpg

 

initial assembly 4.jpg

initial assembly 3.jpg

After that it looked as if it would run so I hooked up some air and lo and behold it did.

I’m pleased with the way it ran considering the cylinder bottom cover is held with just 2 fasteners, there is no piston ring or piston rod gland seal and the port face has not been bedded to the cylinder.

Plenty still to do. It needs a dummy output pully, some cylinder cladding, a wooden base, some decent pipework and of course a splash of paint.

Jim

Edited By Jim Nic on 28/01/2020 21:30:27

Edited By Jim Nic on 28/01/2020 21:32:12

Thread: Ian S C Back again
21/01/2020 12:07:03

Welcome back Ian.

Jim

Thread: The Workshop Progress Thread 2020
16/01/2020 21:26:52

By 'eck George, that must have been a fair old bucket of swarf, good looking frames though. Nice finish on the crankshaft too. Keep it up.

Jim

09/01/2020 15:33:29

Hi Geoff

Although I'm close to completing the major components I'd be very interested to read your build article to see where I went wrong (other than not feeeling when my 10BA tap had reached the bottom of the hole). A heads up when publication is imminent would be appreciated.

Jim

Thread: Warco WM14 mill with DRO
08/01/2020 19:22:01

My advice would be to talk to Warco and ask them if their offering can do the things that you want it to do.

Jim

Thread: The Workshop Progress Thread 2020
07/01/2020 15:10:42

Progress over the holiday period on the Muncaster Double Acting Oscillator.

Finished off the cylinder mounting arrangement but deviated from Muncaster's plan by incorporating a spring and a bronze ball to hold the cylinder port face to the air inlet block.

cylinder 11.jpg

cylinder 13.jpg

Then made the cylinder covers and all was going well until I was given a chance to test my New Year's resolution not to yell bad words whenever anything went wrong. I broke a 10BA tap in the con rod stuffing gland. I managed to retain my cherubic demeanour and calmly considered how to avoid making a whole new cover.

cylinder 15.jpg

I had planned to use 3 studs so the solution was to leave the broken tap in situ and drill and tap another 3 holes in the cover and just turn the gland through 60 degrees. This time my taps survived.

cylinder 16.jpg

The now almost completed cylinder just needs banding to retain the planned wooden insulation but that can wait until the finishing phase.

cylinder 20.jpg

Jim

Thread: What Did You Do Today 2019
27/12/2019 19:59:50

Derek

Your hearth looks just like the one I got from CuP Alloys a few years ago which I find ideal for the small jobs I do and has served me well.

I don't use the fluffy blanket, I found that parts moved on it too easily while I was applying heat and solder. I got an extra piece of hearth brick and cut a few strips on which to place my unsoldered assemblies for heating.

Jim

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