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 My Beduino 
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
Posts: 1577
Location: Exeter, Devon
Post Re: My Beduino
Hey, I can drill holes. I mean, who can't drill a hole, right.

Though getting 36 of them evenly spaced and all of even depth could be the tricky bit..

I think I'll give it a go. :D

No laughing when you see the results though.

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....


November 16th, 2017, 9:58 pm
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Joined: November 8th, 2009, 5:42 pm
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Location: NL
Post Re: My Beduino
Roger V wrote:
Hey, I can drill holes. I mean, who can't drill a hole, right.

Though getting 36 of them evenly spaced and all of even depth could be the tricky bit..

I think I'll give it a go. :D

No laughing when you see the results though.


Drill first through a piece of wood an use it as a end-stop.. A 2by 2cm wood piece...

And please don't do 36 holes.. 35 are enough.. Leave the hole out between 90 and 180 degrees before tdc.. Otherwise it doesn't work well in some occasions..


If you drill 36 holes you need a cam trigger also but then you can do full sequencial injection..

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Russell wrote:
Hi Geo,
you've been one of the sites biggest attractions in recent years.
Russ


November 17th, 2017, 7:34 am
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: My Beduino
Thanks guys

I need to give that some thought Geo as it a missing tooth, not a missing hole! As I understand it speedy doesn't register the hole, it is looking at the metal between the holes. However, having said that, in Tuner Studio, which is the configuration software, you can set a leading or trailing edge for the tooth. Although probably not intended for this purpose, it may be the fix for using holes rather than teeth.

Any thoughts on this are appreciated.

Also, as I have purchased the trigger wheel, it is probably best to at least try it. Its going to be very fiddly to set up though.

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....


November 18th, 2017, 5:26 pm
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Joined: November 8th, 2009, 5:42 pm
Posts: 2846
Location: NL
Post Re: My Beduino
Roger V wrote:
Thanks guys

I need to give that some thought Geo.
. It isn't the hole neither the tooth.. It is the transition in between.. Low to high is rising edge high to low is falling edge and this has nothing to do with holes and tooth but the current which is build up.. Or stops. Npn sensor or pnp sensor or changes with a Vr sensor.. Just to confuse you.... :) ;) ;)

It is up to your layout and used sensor what you need, rising edge or falling edge to make it work well. Read the Megasquirt manual there are plenty of websites to this subject..

Take a look at my first attempt triggerwheel behind the fan. Immediately realizing there's no space in a 2cv for this and then went for the flywheel triggerwheel.

https://m.youtube.com/watch?v=7BFBOltFBaQ


Looking at the video realizing this is almost 9 years ago. Time flies when your having fun...

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Russell wrote:
Hi Geo,
you've been one of the sites biggest attractions in recent years.
Russ


November 22nd, 2017, 7:16 pm
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: My Beduino
Thanks Geo
I'm not confused by it, its just configuring the software that's going to be the tricky bit. However, as you say, its the transition that is the important bit. After that, its just tick boxes :D

I'm toying with the idea of replacing the luminition two tooth trigger wheel with a more toothed one at the moment.

However, I'm still doing stuff with my bike at the moment. The cooling fan motor brushes have melted. A common fault for this model when its left stood for a number of years.

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....


November 23rd, 2017, 10:41 am
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: My Beduino
Not progress as such ..... however.

The bike is working now :D

A little bit of progress on the Shedouin. My efforts using FreeCad. The wheel is only 42mm in diameter and 24-1, and the idea is to replace the Lumenition trigger, but use the Lumenition sensor connected to Speedy.

Now I need to get it printed.! I've been looking at 3D printers and they range in price from about 3k to a 100 pounds. So you really have to wonder what your going to get for a hundred pounds! Brother in Law says he knows people with cheap ones who spend more time getting them working than printing with them. :lol:


Attachments:
File comment: Trigger Wheel Rear
TW Rear.gif
TW Rear.gif [ 151.63 KiB | Viewed 20949 times ]
File comment: Trigger Wheel Front
TW Front.gif
TW Front.gif [ 135.95 KiB | Viewed 20949 times ]

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....
December 27th, 2017, 11:04 am
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Firing on two.
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: My Beduino
I acquired a 3D printer a few days ago. Just have to learn to use it now. :D


Attachments:
IMG_20180105_074901.jpg
IMG_20180105_074901.jpg [ 365.82 KiB | Viewed 20903 times ]

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....
January 5th, 2018, 9:57 am
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Joined: December 21st, 2014, 7:33 pm
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Location: Rhayader Mid Wales
Post Re: My Beduino
Fascinating stuff, look forward to see how it goes :).


January 5th, 2018, 11:32 am
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Joined: March 21st, 2013, 12:04 am
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Location: Exeter, Devon
Post Re: My Beduino
Some progress on my steep Learning curve :D

I have a prototype 36-1 wheel. As it's running on the cam, the resolution is really 18-1. I may get away with a higher resolution but thought I would try this. Although, it fits the points cam, I don't know if it will fit the optical sensor yet. :D


Attachments:
File comment: It may look rough, but its the light reflecting off the tupperware
IMG_20180115_183652.jpg
IMG_20180115_183652.jpg [ 167.52 KiB | Viewed 20844 times ]

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If you can't fix it with a hammer, it's probably electrical (or, an electric fuel pump!) ....
January 15th, 2018, 8:52 pm
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Firing on two.
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Joined: August 8th, 2012, 11:00 am
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Location: Korpilahti, Finland
Post Re: My Beduino
I have 36-1 trigger wheel on cam on my Sm, controlling ignition with MS2. Couldn't believe the accuracy with that, the advance is right there where it should be, checked with strobe and fixed advance. Don't be worried about need of higher resolution...


January 16th, 2018, 12:04 pm
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