CNC Billet Injector Bosses and Manifold
Turbo Mini Forums

well in that case ive sent you a PM

ok just read from the start :p price dep im interested :)

Edited by t@z on 6th Nov, 2012.

id take a set of bosses and rails depending on price look grate paul planing for future use

Thanks for the feedback guys.

The G-code is all done (by Sturgeo) so it's time to make some swarf :)



We'll try and make a couple over the weekend and that will prove the CNC and give us an indication of the time required to make them and an idea of the likely cost.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

The picture is not showing as the Plusnet server seems to have died.

Tom, but some money in the meter.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

You need some lube on that

Do you mean lube or coolant?

We are only running a slow feed rate at the moment and not doing any plunges more than a mm deep and everything is still cold to the touch.

It does get the occassioinal blast of air though but thats mainly to clear the swarf, we've also put a bit of WD on just to see if it makes any difference and it doesn't :)

Edited by sturgeo on 10th Nov, 2012.

It needs something to cool down the cutting tip. We are getting a poor surface finish, particularly towards the end of the cut which suggests heat issues.

I don't want to have to deal with liquid coolant, so we are going to rig up an air blast running off the compressor.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

just the odd squirt from a garden sprayer will make all the difference.

On to the port ::::::::)

http://www.youtube.com/watch?v=aFNrKzlEJjI&feature=plcp

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Good stuff!

I need one of these in my life!

Good skills.

Next job is to make a fixture to hold the bosses on the angled ops:

http://www.youtube.com/watch?feature=playe...d&v=jStjPe5P3Rk

Left it alone to finish whilst we have dinner:)

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Awesome.

"So wat we gonna do tonight Brain?"
"Same thing we do evernight Pinky!"
"Try to take over the world!"

vids are cool,

Yes i moved to the darkside

Instagram @jdm_brett

Vids don't show some of the problems we are having :(

At the moment everything is about 99% scale. Not sure why but probably a combination of scaling and backlash issues. Sturgeo is fixing it in software at the moment so should not be a problem.

The other issue is the shear amount of time it takes. We don't seem to be able to take big cuts without the machine making a lot of noise and vibration, so we are limited to removing about 1-2cc per minute. So that's typically a 2 by 5mm cut moving at 100mm/min for 1cc per minute.

When you have a block at 270cc and cutting it down to just 63cc, then that's a lot of maching time (and cost).

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Now working at 1.0002 scale :)

That'll do nicely.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

do you think a refinement in the cutting tool design ,or a bit of lubricant coolant with a guard to stop it splashing all over the place might help with cutting speed ?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Yes, coolant system is now on my shopping list :(

Another vid showing progress today

http://www.youtube.com/watch?v=PpGWpFNWNoQ&feature=plcp

The port, pocket for the branch and radiusing the outside now all in one piece of G-Code.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

rdg tools do a vertex suds kit with pump nozzle ect for a myford for about £100 might be worth a look i am sure it could be fitted

Thanks Neil, just the job:

http://www.ebay.co.uk/itm/RDGTOOLS-VERTEX-...=item43af9a1879

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Last video, promise :)

http://www.youtube.com/watch?v=sHGNPVWbW08...t=ULsHGNPVWbW08

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Now we know the materials getting removed in the right places we can look at making it more efficient. A lot of time is spent moving the z axis up to a safe point between each cut, we can easily tell it to go back over itself effectively halving the machining time :)

Have you considered casting something and then just finishing the critical areas? Little furnaces are cheap.. and you can use scrap aluminium then at reduced cost.