CNC/Machinist Wizards, where are you?

[grizz]

I was contacted last week by a member on Rods n Sods with a single electric cutout and pipe to sell.

So after looking at it and testing the close off valve, I bought it.

Now the trick will be to find or build another one.






I am looking for someone as close as possible to Rochester, Kent who has access to or knows someone who can copy the ally body of the valve for me.

PM please if you know someone you trust.

[chairchild]

looks like the main body is held on by two bolts, to an intermediate bit of ally? If I'm right, you should be able to remove the butterfly, then split the two sections.

At which point, scan into an email, with something for scale (or even just a reasonably accurate measurement of the big hole/etc) and throw it my way. I'll turn it into a DXF file, which you can then get cut at a laser cutting company/etc.

If I make the main hole undersize, it'll mean the machine shop you take it to, can make the spindle hole perfectly central to the hole (as they'll be machining it!)


Where are you planning on getting a new valve/etc from?

[grizz]

My mate Martin reckons a fuel injection valve may do the job.

I have not even taken it apart or started measuring yet as I was knackered last night.

Will get onto it over the weekend.

[mdh]

Jun 6, 2014 10:16:14 GMT chairchild said:

looks like the main body is held on by two bolts, to an intermediate bit of ally? If I'm right, you should be able to remove the butterfly, then split the two sections.

At which point, scan into an email, with something for scale (or even just a reasonably accurate measurement of the big hole/etc) and throw it my way. I'll turn it into a DXF file, which you can then get cut at a laser cutting company/etc.

If I make the main hole undersize, it'll mean the machine shop you take it to, can make the spindle hole perfectly central to the hole (as they'll be machining it!)


Where are you planning on getting a new valve/etc from?

Could you turn a set of plans into a dxf file too? :-)

[chairchild]

define "plans"

And Grizz, I meant the little motor itself. Vacuum actuator (off an old VNT turbo) may also be worth looking into - no electronics under the car, just a vac pipe

[grizz]

You clever guys are way over my head.

[chairchild]

well, putting it simply a DXF is just a file used by CNC machines/etc - it's a 2D "picture" of what you want, with built-in measurements

And, how do you want the spindle to be actuated? A plain valve is the easy bit - it's turning it on demand that can cause the issues

[grizz]

Jun 6, 2014 12:58:45 GMT chairchild said:

well, putting it simply a DXF is just a file used by CNC machines/etc - it's a 2D "picture" of what you want, with built-in measurements

And, how do you want the spindle to be actuated? A plain valve is the easy bit - it's turning it on demand that can cause the issues

Ideally for being a show off, I would love both to be on a single switch, being able to open them partly, or all the way, Electronically.

That would be the ideal, rather than a cable operated, open/close system.

I still need to dismantle the whole thing to get a better idea of what the motor is from etc.

I am 100% new to this sort of thing, so making it as you guys tell me to go along.

[grizz]

I went straight to the garage from work, in a suit and tie to measure and photograph the measurements.

This is what I got.


Ally: 13mm thick
Hole 57mm sideways.
Max hole 60mm downward.
Butterfly axle 60mm downward.
Hole 57mm minimum, with lip to cover max size at 60mm

Ally 139mm inc motor plate. Ally plate 133mm alone.
Ally plate 115mm wide

Y piece entry and exits on a O/D 64mm

64mm = 2 33⁄64in Which I guess is a 2 1/2 inch outside diameter.

Loads of photos, as I measured everything.

PLATE THICKNESS 13mm



Exit hole, widest width. 60mm



Exit hole smallest size 57mm



Butterfly spindle 60mm



Clearly bottomed out in some application.



Motor mounting plate 6mm



Spindle end view.



Top to bottom height 140mm





Sideway width 115mm






So that is all I have at the moment.

Beyond this, I guess it becomes a touchy feely measuring thing.

[smurf]

Bring it to where i work mate, No doubt they can sort something

Specialized welding and engineering services
Unit 2 enterprise close
Medway city estate


Go onto the estate, take the second right and we are on the right

They do all sorts of cnc amd waterjet cutting as well as all the other fancy shizzle

Might be worth a try

[rascaltl]

Done a quick sketchup there guessing the dimensions from the pictures. Is this the kinda thing your looking for???

[grizz]

Jun 6, 2014 18:48:45 GMT rascaltl said:

Done a quick sketchup there guessing the dimensions from the pictures. Is this the kinda thing your looking for???

There are some very clever people out there......

You included.

Also identified thus:

That looks like a QTP cutout. Perhaps that will help find more specs, etc:

[/QUOTE]

[fred]

Love to assist, but been made redundant two weeks ago, would have loved to spent the night doing this 'foreigner' but looks like your in good hands

[mdh]

Jun 6, 2014 11:48:12 GMT chairchild said:

define "plans"



And Grizz, I meant the little motor itself. Vacuum actuator (off an old VNT turbo) may also be worth looking into - no electronics under the car, just a vac pipe

A bunch of A3 sheets of paper with drawings on.

[chairchild]

Jun 6, 2014 21:30:38 GMT mdh said:

Jun 6, 2014 11:48:12 GMT chairchild said:

define "plans"



And Grizz, I meant the little motor itself. Vacuum actuator (off an old VNT turbo) may also be worth looking into - no electronics under the car, just a vac pipe

A bunch of A3 sheets of paper with drawings on.

Send them my way


And the machining of the valve body looks to be in capable hands - but if you want a matched pair, it might be worth making two of your own from scratch (unless you can get another of the same motor/etc). As mentioned before, might be worth looking into using a vacuum actuator to move them:



Much like this setup. Switch the vacuum to open/close the valves with a simple EGR vacuum solenoid - stick 12v across it, and it'll let vacuum flow into the actuators to open them up

[mdh]

Jun 7, 2014 17:57:37 GMT chairchild said:

Jun 6, 2014 21:30:38 GMT mdh said:

A bunch of A3 sheets of paper with drawings on.

Send them my way

Cool, thanks! They're in storage, so I'll grab them when I'm at the south coast. :-)