In for the long haul Ultimate NA build thread.

[Jaden]

Originally Posted by celek

Everything finalized, but finding an open CNC machine is tough. Although I had a local business to me offer free use of a 4 axis CNC if I wanted to use it to play around....
Now the problem is teaching myself how to program one, so maybe next decade???

Currently building 3 other engines for people has hindered my free time to do such tasks

You can auto generate G code with adobe inventor....

Jaden

[celek]

Originally Posted by Irace86.2.0

This has probably been said, but have you thought about abandoning development of the ITBs and buying a ITB kit from one of the manufacturers that have done the development?

No I do not like the designs available. They are incorporating the factory MAF to make it more plug in play which also restricts the flow.
They also use a circular off the shelf throttle body which is smaller than the opening of the port on the head so you build velocity then lose it before it enters the head.
It's almost like drag racing and hitting peak boost then your wastegate dumping it then hitting peak boost over and over surging.

[Irace86.2.0]

Originally Posted by celek

No I do not like the designs available. They are incorporating the factory MAF to make it more plug in play which also restricts the flow.
They also use a circular off the shelf throttle body which is smaller than the opening of the port on the head so you build velocity then lose it before it enters the head.
It's almost like drag racing and hitting peak boost then your wastegate dumping it then hitting peak boost over and over surging.

That’s kinda what I was thinking when I saw the designs, and I figured a more open system would breathe better.

[cyde01]

Interesting. Dunno if you know the answers to these yet or not but, what are you going to use in place of the factory maf? Will your setup require an aftermarket full standalone ecu?

[celek]

Originally Posted by cyde01

Interesting. Dunno if you know the answers to these yet or not but, what are you going to use in place of the factory maf? Will your setup require an aftermarket full standalone ecu?

speed density tuning with Ecutek

[Kodename47]

Originally Posted by celek

speed density tuning with Ecutek

Not Alpha-N? It is possible with EcuTek Would possiblt run better and just have SD for idle etc.

[fika84]

Originally Posted by Jaden

You can auto generate G code with adobe inventor....

Jaden

All machine controllers require different G-Code formats... it's not as simple as just printing out G-Code from an application. It needs to be formatted to the specific controller.

[Jaden]

Originally Posted by fika84

All machine controllers require different G-Code formats... it's not as simple as just printing out G-Code from an application. It needs to be formatted to the specific controller.

Look into it. Adobe inventor allows you to choose the output format. I use it for the CNC lathe that I designed and built. It's a total cad/cam package and fairly easy to adapt to if you've done any cad before.

Jaden

[fika84]

Originally Posted by Jaden

Look into it. Adobe inventor allows you to choose the output format. I use it for the CNC lathe that I designed and built. It's a total cad/cam package and fairly easy to adapt to if you've done any cad before.

Jaden

I've used primarily EdgeCam and used it on many types of CNC machines, as well as setup controllers and machines from scratch. You can't just say spit out the G-Code and have it work on 100% of controllers.. that's it. G-Code isn't a one size fits all for CNC machines. Yes it's the language needed to run a CNC controller, but each CNC controller needs a different format and specific commands to run properly. A simple example are machines that have tool changers and machines that don't. Or machines that have the X or Y axis inverted. Or 3 vs 4+ axis machines. Or G-Code for a CNC Lathe vs Mill vs Wire EDM, etc. etc.

Take it from me, machinist get REAL mad if they run your code and it rapids the tool into the part or part holder... replacing bearings isn't cheap..

[Jaden]

Originally Posted by fika84

I've used primarily EdgeCam and used it on many types of CNC machines, as well as setup controllers and machines from scratch. You can't just say spit out the G-Code and have it work on 100% of controllers.. that's it. G-Code isn't a one size fits all for CNC machines. Yes it's the language needed to run a CNC controller, but each CNC controller needs a different format and specific commands to run properly. A simple example are machines that have tool changers and machines that don't. Or machines that have the X or Y axis inverted. Or 3 vs 4+ axis machines. Or G-Code for a CNC Lathe vs Mill vs Wire EDM, etc. etc.

Take it from me, machinist get REAL mad if they run your code and it rapids the tool into the part or part holder... replacing bearings isn't cheap..

The CAM part of inventor, gives a drop down menu for the controller you are using in order to output the proper G-code.

I'm sure not all of them could possibly be covered, but a vast majority of them are.

If you ask your machinist what controller they are using, you can check if Inventor has the capability to output in that format.

Jaden

[Ultramaroon]

Ok, guys. Please allow me to mediate.

1. Let's agree that Adobe Inventor has a comprehensive manufacturer-specific g-code library.

2. It's up to the machinist to verify any code before running it. Even if you and I were the best of buddies, I would still test the shit out of any code you handed me and would expect you to do the same. That's just being a grownup doing grownup stuff.

3. Unless it's a super simple part, the machinist will probably disagree with some aspect of the code because he likes doing a certain thing his way on his machine.

I would offer the machinist an export as a courtesy only after discussing my drawings with him.

Fully defined engineering drawings are still the standard.





...now back to our regularly scheduled ultimate build thread.

[fika84]

Originally Posted by Jaden

The CAM part of inventor, gives a drop down menu for the controller you are using in order to output the proper G-code.

I'm sure not all of them could possibly be covered, but a vast majority of them are.

If you ask your machinist what controller they are using, you can check if Inventor has the capability to output in that format.

Jaden

That's cool

I find it awesome that you made your own lathe!

[Jaden]

Originally Posted by fika84

That's cool

I find it awesome that you made your own lathe!

Thanks.
technically it is a mill as well. I created it with 3 axes so I can mount a piece where the tool for the lathe would normally mount and put a mill bit in the lathe chuck and can use it as a mill or I can lock down the lathe in one of 24 positions and use it as an indexable 3 axis mill with something mounted in the lathe.

Jaden

I also have a 12X36 gun-smithing lathe for the real precision work. I make custom pool cues.

[Williampreza]

@celek- If this is not proprietary info, how did you go about sourcing custom pistons, as in how do you know if you've got things like compression ratio, valve locations/lift clearance, etc. right? Sorry if this is a vague question, I'm just learning this stuff.
Thanks!
Will