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Member postings for Pete White

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

Thread: Single phase verses 3 phase motor
09/02/2019 18:23:29

Double post, instead of edit, as below.smileyangry

Edited By Pete White on 09/02/2019 18:27:47

Thread: Wheels for a 5 inch gauge battery loco
25/01/2019 11:48:39

Well those two answers are exactly what I was looking for, lots of very good points and the link, many thanks to you both smiley

The Atlantic offering was taken from the series in M.E.March 2010, that was the one that didn't look right to me.

I am at the stage of joining a local club, will talk with them.

Thank you for your time both.

Pete

 

Edit Just saw other two answers which appeared whilst I was composing, lol thank you also gents

Edited By Pete White on 25/01/2019 11:51:04

25/01/2019 10:03:21

Well it appears that 153 viewers don't know the answer, lol, so I did some more research .smiley

I found the GL5 standards to add to my confusion ! ..............the.0.038 tip radius made me smile. I was beginning to think that I was over thinking this until I saw that, serius stuff, ..........or maybe I am over thinking it lol

And then I looked back at the Atlantic details. that 1/16 flange isnt much, but a big radius behind it wth no dimensions or taper...........does it all matter

Pete

Thread: Thread locking
24/01/2019 21:06:54

Third vote for keeping it simple, lock nut. smiley

Thread: Wheels for a 5 inch gauge battery loco
24/01/2019 17:42:10

As above, I have four 16 mm thick billets machined up with axle hole bored true to face.

I started to think about final dimensions and pulled up this drawing. AALS standards, whatever they are. My question was about the back taper 0 - 8 degress being a bit open ended. Then I pulled up a wheel drawing from a mag,for an Atlantic and found it to be quite different, only 9/16 thick including a 1/16? thick flange. Very different !

I have done some google and found nothing to help, I am out of control here, lol.

What should I be doing here ?

With Thanks

Pete

Edited By Pete White on 24/01/2019 17:47:39

Thread: What Did You Do Today 2019
18/01/2019 21:08:41

P. S. 45 minutes a blank, EN8, turned it once when about a third way through.

Bet a fancy band saw would have whipped that by a mile, but both my saws came F.O.C...................and I have owned them for thirty years.

18/01/2019 20:23:42

Well apart from rebuilding my Ajax donkey saw, I sawed off three wheel blanks, with my Manchester saw, from a 4 inch billet. It has not had such a workout for quite a while.

Why only three blanks? .................going to try out the Ajax tomorrow. One must go, a man does not need two donkey saws. lol

Thread: New Bandsaw Gloat
17/01/2019 08:45:30

Nice bit of kit there, sod the expense. Had a quick look for price and got bored, but just remember lads that £750 will barely get you a week in a residential care home. So might as well spend the money and enjoy.

That said I fettled up my old Manchester only yesterday. lol

They do tend to walk about a little as mentioned. My old Rapidor didn't do that, might have been because it was about five times as heavy lol

Edited By Pete White on 17/01/2019 08:49:40

Edited By Pete White on 17/01/2019 08:53:11

Thread: Gatwick Drone 'Attack'
09/01/2019 09:28:46

I don't we are getting all the information here.................as usual .

Thread: Nylon for axle boxes ?
06/01/2019 15:48:44

Thank you Keith for that detailed explanation, I understand the table now.

What I am seeing is that with say the short 0.75 springs there is not much difference between free and solid length. In the case of type 47 on 0.23.

So what I think I was originally trying to find out, in hind sight, was how much suspension travel is a reason amount to design for.

I am working from drawing form 5g drawings in M.E. which show horn brackets at 2 inches and as I said with bearings at 26-28mm only leaves 19 ish mm for the springs to live in. This is not exactly my area of expertise but understand that "proper" loco builder do use ball bearing?

With Thanks

Pete

06/01/2019 15:47:35

Thank you Keith for that detailed explanation, I understand the table now.

What I am seeing is that with say the short 0.75 springs there is not much difference between free and solid length. In the case of type 47 on 0.23.

So what I think I was originally trying to find out, in hind sight, was how much suspension travel is a reason amount to design for.

I am working from drawing form 5g drawings in M.E. which show horn brackets at 2 inches and as I said with bearings at 26-28mm only leaves 19 ish mm for the springs to live in. This is not exactly my area of expertise but understand that "proper" loco builder do use ball bearing?

With Thanks

Pete

06/01/2019 13:28:54

YES, I did think about question 3 quite alot , but my reasearch did not give me an answer that I understood.!

As follows

If using compression springs for suspension on locos, bogies, etc we recommend you decide what weight you need that item to be able to carry (or its resting weight in the case of locos) then double it for the lb at full compression. If you then put a spring (or multiple if need be) on each axlebox to meet that maximum compression then when on the track the axleboxes will sit halfway up in their slots/ on the spring meaning they have movement both up and down to follow the track.

springs

so if my loco weighs say 100 - 120 lb doubled gives 240 lb = eight springs at 30 lb ?

So ref. no. 47 springs needing 0.75 inches in th hornblock?

The above description was not very clear to me, have I now got my understanding correct?

I still do not understand max solid length or lb / Lb

With Thanks

Pete

Edited By Pete White on 06/01/2019 13:39:20

05/01/2019 13:14:23

Thanks ega, for keeping the ball rolling !

Query number three ?...................how much room would be reasonable for the springs if I want them at the top of the horn blocks.

Thread: Rocket design
05/01/2019 10:41:25

Got this wrong, from the title thought you were planning on building one. lol

Anyway couldn't help with that or the real question.

Did like the video of the replica though.

Pete

Thread: Nylon for axle boxes ?
05/01/2019 10:30:09

Thanks to all for the input. Yes its a quickie battery project. So not keen on nylon/plastic then! I was after a cheap easy solution, but might as well do the job properly on reflection.

I have found in my stock a large bar on cast iron, so cast axle boxes in steel horns would be good I assume? Might as well put in pb bushes as well !

Pete

Thread: Newbie saying hello
04/01/2019 20:41:36

Welcome to the forum, I to am new here and appreciate that there are guys with a lot of knowledge here, who freely share.

Thank you to them.

Like all forums there are lots of browsers.

Pete

Thread: Nylon for axle boxes ?
04/01/2019 19:36:37

I have a project in the way of a 0-4-0 5 inch gauge loco to be made for our grandsons............and me. Design is well underway and am keen to move towards doing some cutting.

I have done some research but not found the answers, so a bit of input would be appreciated.

1 How about nylon for the axle boxes?

2 I am old fashioned and favour, "proper" bearing set into the nylon?

3 Springs......... Bearings of 26 - 28mm od do not leave much room in "normal" 50mm horn blocks for the springs. Is 19mm enough ?

Sorry for the dumb questions, but this is not my "area of expertise" lol

With Thanks

Pete


Thread: Gatwick Drone 'Attack'
04/01/2019 13:50:42

A couple of good theories, but where do the couple that the police detained for 36 hours fit in? did they exist ?lol

Thread: Angle checker
29/12/2018 20:18:18
Posted by Mick B1 on 29/12/2018 14:55:22:
Posted by Pete White on 29/12/2018 10:24:03:

"Have nothing in your house that you do not know to be useful, or believe to be beautiful" (William Morris)

Very good Mick, will remember that .

29/12/2018 10:24:03

Sorry can't help here.

Edit. this bit of the post disappeared when a tracking thing popped up. huuummmm ??

This is one bit of kit that I don't loose............to often. I do know that the angle thing has lasted out longer than who knows how many digital calipers and used as much as most of them. If it died, or hid itself, I would soon be out getting another.

Edit over. lol

Do people have a load of broken digital calipers lying around, that hinder finding the one that does work?

Edited By Pete White on 29/12/2018 10:28:30

Edited By Pete White on 29/12/2018 10:31:29

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