iv been practacing with a horizontal/vertical band saw cutting pvc and made a decient jig to make a merge collector for my first turbo mani. iv done lots of searches and only came up with a few pics, if any one has any pics or even pics of them making a 4-1 merge collector that would be helpfull

 

Post pics of yours and I'll tell you how to make it better.

 

this is what i setup for making a 2-1. i know its different but might give you something. i first drew out dimensions on paper, traced a cardboard cutout. lined it all up and clamped.



result


-Luke


Modified by lkailburn at 12:00 AM 10/30/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lkailburn &raquo;</TD></TR><TR><TD CLASS="quote">this is what i setup for making a 2-1. i know its different but might give you something. i first drew out dimensions on paper, traced a cardboard cutout. lined it all up and clamped.

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I'm not trying to criticize your post, but I feel it's misleading. What you've got there, number 1, isn't a jig. Number two, your fitment is only good because your doing two single cuts. As long as your bandsaw cuts straight two single cuts is gonna fit right.

The issue with a 4-1 is you have to make your first cut, then turn it 90 degrees exactly and make another. That way when the 4-1 comes together, each piece occupies only 90degrees exactly. Making a 4-1 is a far different ball game dude...no offense.


O.P. Like dude said above...post your jig and I'll help you on how to make it work.

 

point taken. thats why i indicated it was 2-1 as its much different than 4-1. just thought i'd post anyways.

-Luke

 

So make two 2-1's, and then make another jig to cut those again.

 

You could, but it just honestly overcomplicates the process. It's easier just to cut four pieces with one jig then put them all together. It's also pretty difficult for a bandsaw to cut one of those 2-1's down the side like you propose.

 

sorry i dont have a camara but the jig is pretty simple, it is based of the fence so i have the adjustability, and really it just is a wedge shaped jig that i can also clamp the material threw the pipe and hold the pipe fairly tight but im having a hard time finding the correct angles for the four pieces to come together and make a whole,btw the jig also lets me turn the pipe exactly 90 degrees i was just looking to see how other people are doing it and maybe it would help me

 

bump still looking for pics

 

Everyone here that posts will probably have a different method of making fixtures and cutting the pipe. Which they've all learned by practice. So my suggestion to you is to look at the piece you are cutting, figure out the best way to hold it at the same angle everytime and go from there.

I would use one of these too if you dont already have one



http://www.harborfreight.com/c...34214

So after you get your angle finder, and you figure out your jig, make your first cut. Rotate it to whatever degree you need (use your angle finder to help) make your second cut. Then do that 3 more times and you have a 4-1 collector

 

Thanks for the link to that angle checker! I was just in the garage playing with my bandsaw and was telling myself I needed to find something like you just posted!

 

thanks that deff. helps, i was just looking for some ideas on what was working for other people

 

ttt

 

Anyone else mind posting there jig set-ups?

 

Yep....I mind

 

How did I know you would respond RC :-)

 

Cause I'm muddaf*ckin koo like dat

 

never mind kids i have mine set up just fine now thanks everyone for the input it was very helpful ill post some pics if i get a cam.

 

I hope it doesn't involve vice grips and a sharpie.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RC000E &raquo;</TD></TR><TR><TD CLASS="quote">I hope it doesn't involve vice grips and a sharpie.</TD></TR></TABLE>

Unless said vice grips have been cut up and welded into the clamping mechanism

 

I still use a chopsaw, however, I built my own with a machined flat clamp and surface base. yay for accuracy!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k24em2 &raquo;</TD></TR><TR><TD CLASS="quote">

Unless said vice grips have been cut up and welded into the clamping mechanism </TD></TR></TABLE>

Alright, but I'm not movin on the sharpie...

 

yup maintaining trueness by relying on an 1/8" black line isn't exactly a good idea.