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Member postings for Ron Laden

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

Thread: Electric Traction Engine
15/09/2019 19:42:23

Thanks Dave/Jason I think I will use the brass bearings, sounds as if they will be ok.

Will also look into getting a small stock of 660 in I mainly use Metals4U and I can buy short lengths so a selection of 2 or 3 sizes will be helpful.

15/09/2019 16:36:32
Posted by JasonB on 15/09/2019 16:20:30:

There is also the option to do the Minnie as a convertible if you have a few minutes to spare Ronwink

Thanks Jason, I didnt realise that the Minnie had been done as a roller but why not, though I think the engines with the standard wheels are a bit more handsome.

Would you have any thoughts on me using the brass half bearings, as I mentioned they are a nice fit but I can easily reproduce them in bronze, would appreciate your opinion.

Ron

Edited By Ron Laden on 15/09/2019 16:37:42

15/09/2019 16:15:13
Posted by Meunier on 14/09/2019 21:17:57:

Lucky find Ron - interesting tyre treatments too - the red engine has what looks like the usual two circular rubber ribs, the Aveling has what looks like rubber strakes and the last one has apparently the central tread section of an I/C tractor tyre !
DaveD

Dave, I also heard one of the engine owners explaining to someone that the Burrell in the last picture can be converted into a steam roller by removing and changing the wheels, quite impressive I thought.

15/09/2019 08:30:05

I had a test run this morning in producing a pair of half bearings for the crankpin, reading the Minnie instructions I think it it suggests soft soldering the two halves together, machine and then melt apart.

I thought of giving it a try another way so I cut a piece of brass down the centre using a 1.0 mm slitting saw which leaves to clean faces and then put them together and set them up in the 4 jaw with a good 20 mm in the jaws to hold it together. Faced the end and then drilled and reamed for a good fit to the pin, I drilled for the reaming size in a number of steps as I was worried to heavy and the two halves may spread. Turned the rest of bearing and then cut them off and faced the cut end in the 3 jaw.

Seems to have worked quite well, picture below shows the two halves of bar they came from. Would brass work in this application, it is a lubricated bearing and its just that the pair are a really nice fit to the pin. If not I will get hold of some bronze.

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14/09/2019 15:41:48

Thanks Jason, I have a selection of BA taps and some dies so will probably go with BA where I can. I think GLR Kennions do a reasonable range of the small head type.

Look what I found in Barnstaple town square this morning, there was five full size and two 4 inch so I dashed home grabbed the camera and managed to take dozens of close detail shots which should be helpful.

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Edited By Ron Laden on 14/09/2019 15:56:20

14/09/2019 10:58:13

Would I be right in thinking that for most of the fastenings i.e. setscrews/nuts etc in a traction engine build they need to be the one size smaller head type..?

Thread: Class 22 Diesel (next project)
14/09/2019 08:08:11

You cant beat some early morning (5am) smiley machining to get the day off to a good start.

Anyway, 2 x 46 holes later, waste pieces removed and the angled ends cut and filed to shape it was back on the mill to clean back the drilled edges. Its a case of sliding the work along so as not to get too far away from the vice but it works well enough.

I would have used a 10mm 2 flute carbide alu cutter but its past its best so need to get another one. So it was a case of having to use a 8mm 3 flute coated HSS cutter from ARC,s premium range. I am really impressed with this cutter I have used it on both steel and alu with great results, think I will get a 10mm version also.

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Thread: My new lathe a Warco 918
13/09/2019 08:27:34

Not a very good picture but the tool made light work of cutting the 45mm x 1mm steel disc, started at 350 rpm which I increased to 400 and then 650 half way through. Its left a good finish, well very smooth to the finger though I need to adjust the tool height a tad. So looking good for a number of jobs on the TE which is the main reason I bought it.

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Thread: Class 22 Diesel (next project)
13/09/2019 08:02:41

Chain drilling the chassis rail side walls for clearance at the bogie positions, 2" x 1" x 3/16" alu angle back to back to get a matched pair. I did remember (just) to set the depth stop to prevent drilling the vice..smiley

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Thread: My new lathe a Warco 918
12/09/2019 21:01:08

Thats what I thought Jason, the quick test I did today on some 40mm ali was at 650 and it was fine, for the 45mm thin steel discs I am doing in the morning I was thinking of starting at 350 and see how it goes from there.

12/09/2019 17:05:10

Havnt had much time today but with the new tool mounted in the rear tool post I gave it a quick try with alu and brass and it was very good with no issues at all. I guess that is to be expected with softer material but I need some 45mm dia x 1.00mm thick steel discs so will see how it copes with those in the morning.

Edited By Ron Laden on 12/09/2019 17:05:53

Thread: THIN cutting oil - Suds alternative?
12/09/2019 13:10:23

Depending on the job I often cut dry but when I need some lube I use WD40 on alu (must find some paraffin) and for steel I use a 50/50 mix of motor oil and WD40, all I know is it works really well.

Thread: Further Adventures with the Sieg KX3 & KX1
12/09/2019 09:42:20
Posted by JasonB on 12/09/2019 07:53:24:

4-flute which I mostly use as the majority of the metal gets removed first with a standard cutter so you don't need 2 flutes to clear a lot of aluminium swarf and the big bonus is you can feed twice as fast as a 2-flute and still have the same chip load.

I did also but a 2-flute in 6mm but have not used it yet.

A bit of paraffin and some air when cutting aluminium seems to stop anything sticking to the coated end as uncoated seem a bit harder to come by.

Jason, your 4 flute link goes to Model Engine Maker pages..?

Looking at those 2 flute prices they are very good some of the ones I found when I had a look were £30 upwards.

Thread: O rings.
11/09/2019 17:30:10

Bearing Boys sell 1mtr lengths of Nitrile O ring cord in a range of diameters, as mentioned some superglue and you can make your own...dead easy.

Thread: My new lathe a Warco 918
11/09/2019 12:55:01

The parting block, blade and inserts arrived from ARC and looks to be very good quality, before I give it a try and also been new to insert parting tools a couple of questions if I may.

Am I right in thinking that to fit the insert into the blade you just firmly push it in and then the loading from parting locks it in.

Also, running speeds..? I watched a video recently of a similar tool which was tested on a variety of materials and it worked really well but I was surprised how low the speeds were, example 150rpm on 3/4" steel thats slower than I would use with HSS. Surely thats not the norm with inserts is it I thought inserts always work at higher speeds than HSS tooling, unless I,m wrong.

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Thread: Warco WM16 Powerfeed
10/09/2019 20:53:16
Posted by JasonB on 10/09/2019 19:58:59:

Steve, do you know whet the gear ratio is on the gearhead to give the 150rpm at 24V?

Jason, If its the motor I think it is (approx 5000 rpm) then 33/1 but dont quote me on that, there are a number of models in this range 12 volt and 24 volt and the spec given is often not that accurate.

Thread: To Pin or Not To Pin
10/09/2019 18:25:06

I agree with Fizzy I was recently fitting the wheels to the axles on the class 22 using Loctite 638 and I didnt seat one correctly, when I realised which was no more than 30 seconds later I couldnt budge it, it was solid.

So despite what Loctite quote re working time in practice it is somewhat different.

Thread: Engraving
10/09/2019 18:14:54

Thanks for the tips guys but Geoff Adams (above post) has very kindly said he will CNC it for me, which is very kind of him and very much appreciated.

Ron

Thread: Electric Traction Engine
10/09/2019 15:48:35
Posted by JasonB on 10/09/2019 15:38:33:

I think your biggest problem will be assembly and keeping Loctite out of the bearing

I also considered that, but didnt come up with an answer for that one..frown I had better not rock the boat and go with the norm.

Edited By Ron Laden on 10/09/2019 15:49:49

10/09/2019 15:30:39

Jeff, I did think of that but based it on the fact that the amount of running the engine would get, the bearing would probably see me out. Its not a problem though I can make it as per the drawings it was just an idea.

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