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Member postings for Brian Abbott

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

Thread: Brian's 1" Minnie Traction Engine
19/06/2020 16:36:11

Thanks all for your help and advice.

18/06/2020 23:25:54

Thanks Paul.

I have re-read the book tonight, and he does clearly say that this arrangement suffers from "link slip" and to leave a little free space in the link slot beyond the die block ( his words ).

As suggested by Dan I have tried clamping the reach rod with a couple of mm clearance in the link slot and it does seem ok (ish) so I think I need to finish all the reverse lever assembly and set everything up properly.

I am fairly sure everything is made correctly, I know when I made the eccentric rods I did take care, but costs nothing to check these things.

Thanks for the advice.

18/06/2020 14:08:44

Thanks Dan.

You've just hit the nail on the head, don’t know why i didn’t see it myself.

As explained in the book, leave a little room for the slide block to move.

Just need need to check the valve travel.

Update!

Much better but still happening, problem is i don’t think i have enough through to open the valve correctly.

Never kind, keep looking

 

 

Edited By Brian Abbott on 18/06/2020 14:20:41

18/06/2020 12:42:18

Hello All

I am having a problem with a bouncing link assembly when in reverse.

Thought a video might explain it better than i can, just hope it works.

Any help would really be appreciated.

Thanks

Link Arm

Edited By Brian Abbott on 18/06/2020 13:04:42

Thread: General question about threading die's.
16/06/2020 22:35:21

Threading die's always had a taper on one side, the side marked with the size and logo, the over side did not have a taper, so you could thread up to a shoulder.

Today whilst trying to thread 5ba using a die supplied by a reputable dealer i could not get anywhere near the shoulder.

Is this something common to the Chinese supplied die's, does anyone know if the likes of dormer, presto are the same?

Thanks all.

Thread: Brian's 1" Minnie Traction Engine
31/05/2020 23:01:55

Hello.

What do you think i should use for the brake blocks, some seem to turn from a solid block, the book suggests ply wood, can you remember what you did Jason?

Hi Peter, not got that far but a friend of mine has one which he fires without problems.

Thanks.

Thread: Machine Covers
31/05/2020 22:57:08

Maybe something like this if the link works.

https://www.facebook.com/marketplace/item/536560513956348/

failing that search facebook market place for machine covers.

Thread: Brian's 1" Minnie Traction Engine
25/05/2020 20:59:56

Thanks Both,

I just dropped Reeves an email.

24/05/2020 23:17:25

Hello all.

I am after some material to make the brake band,

Drawing calls for 5/16" wide x 0.015" thick, some sort of spring steel.

Does anyone know a supplier for this material?

Thread: Graham Meek’s Tailstock Dial - MEW279
22/05/2020 23:19:07

Hello Martin.

Can i ask what you used to 'black' the dial ?

Thread: Stepper motor driver help
21/05/2020 19:42:50

The motor will be wired as parallel so i will set it as 4.2 amps.

Thanks for the reply’s and thanks Nigel for the clear explanation.

21/05/2020 19:16:33

Hello Nigel,

This is the motor.

**LINK**

21/05/2020 19:09:21

Thanks Martin,

but unless i am missing something it does not tell you which current setting to use, only the options.

21/05/2020 18:46:40

Hello all

Could someone offer me some guidance on setting up a stepper motor driver.

On the one i have bought it uses switches to control the current, there is also an option for half or full.

Can anyone explain how i would need to set this up?

I am driving a Nema 23 motor using a CW5045 driver.

Thanks for any help.

Thread: Stepper Motor Flexible Coupling.
08/05/2020 21:21:34

Thanks John.

Good read and will be very useful.

08/05/2020 20:34:56

Hello Ketan.

I was hoping to use it to connect a stepper motor to my rotary table.

08/05/2020 20:23:15

Thanks all.

John, looks like what I need, thanks for the link.

08/05/2020 19:54:24

Does anyone know where I can get on of these in the uk?

6.35 to 12mm

Thanks.

flexible coupling2-400x310.jpg

Thread: Myford Super 7 Tail stock problem
06/05/2020 22:30:46

Hi Trevor.

Make sure it's not the anti-rotation key at the front of the tailstock stopping the quill from going in and engaging on the screw.

Thread: Brian's 1" Minnie Traction Engine
30/04/2020 21:12:58

Thanks, Harry, hows lockdown treating you, seams an age since the last club meeting.

Hit a slight snag on the engine. When I machined the side of the boiler I made a mistake and took it a little undersize.

Looks like the 1/16" reversing link should run between the side of the boiler and the horn plate, anyway, mine won't.

Anyway, all the best.

Hello Henry,

I would make them straight from SAE660, saves messing about too much.

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