Irish's CBH CR200

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IRISH
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SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Irish's CBH CR200

Post by IRISH »

I started (again) on the new chop this past week. I got the seat post x-member and seat post fish-mouthed and cut, and also mitered the rear wishbones. I'm using the blueprint from the CBH for the CR-200 (Custom Rigid) with wide rear wheel. I'm using a 1.5" backbone instead of the 1.25". I also want to use a single down tube instead of the double tubes running up from the front motor mount. I'll bring the lower rails together just above the front mount and run another 1.5" tube up to the head tube.
seat post cross member and seat post mitered and cut to length ready to tack
seat post cross member and seat post mitered and cut to length ready to tack
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I scored a vintage Randy Enterprises springer fork that is quite long, 34.5" from the lower tree to the rear rocker pivot, so I want to stretch the backbone and down tubes more than what the plan calls for; how much more I don't know yet. I need to get the rear wheel and tire bolted up and then I can mock up the front and get the look I want. I ordered a 18x5.5 rear wheel for the project and I will mount a 180 or 200 tire. I will probably run a chain final drive to keep it narrow.

The springer came with a 18 inch Hallcraft's front wheel and mini drum which I'm selling on ebay. I'll use a 21 inch narrow glide disc brake wheel up front so the bike will stop. I need to shape up the rockers, or build new ones as the original Randy's are a goofy shape (70's). I also need to find a 1"-24tpi die to fix the stem threads as some idiot beat them up for some reason - probably trying to keep the top nut from coming loose I guess.
14 over Randy Enterprises front end
14 over Randy Enterprises front end
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I used the Tube Miter program.
rear wishbones getting fitted to 1 1/2" backbone
rear wishbones getting fitted to 1 1/2" backbone
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final fit up is nice and tight
final fit up is nice and tight
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Jeff L
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SELF INTRODUCTION: Hey...I live in South Jersey (the Super Fund State) work as an Operating Engineer local825.Besides bikes I love to fish the surf.I have my current & seemingly endless project a BSA 750 Rocket3, a 72 Honda CB750,79 Kawasaki KZ1000, 48 Simplex, & a 62 Norton Atlas engine
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Re: Irish's CBH CR200

Post by Jeff L »

The joints look nice.What program did you use.Forget which one I had, but my computer crashed before I got a chance to use it.
Changing the shape of the Earth...1 bucket at a time...IUOE local 825 top of the food chain
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IRISH
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Posts: 87
Joined: Thu Nov 17, 2011 11:31 pm
SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Re: Irish's CBH CR200

Post by IRISH »

Tube Miter by Giles Puckett: http://www.ozhpv.org.au/resources/shed/tubemiter.html

It's the same one I used on the first one. You have to convert to mm. Works really nice.
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Maxthegardener
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SELF INTRODUCTION: Name is Max living in scotland ,and building my first bike, Which is derived from a buellM2 Cyclone..Started with an engine and a Drop seat frame wich was made to my spec by a more experienced builder. would like to learn more about the skills and techniques required to build a frame so I value being a member here...Cheers Max
Location: Angus, Scotland

Re: Irish's CBH CR200

Post by Maxthegardener »

Nice Start! :popcorn:
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IRISH
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Posts: 87
Joined: Thu Nov 17, 2011 11:31 pm
SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Re: Irish's CBH CR200

Post by IRISH »

Thanks Jeff and Max.

Day 2: I tacked the top tube to the seat post. Then I welded two lengths of 1" angle to the cross bar on the jig to hold the seat post cross member in place. I then wanted a support for the top tube so I set up a length of 1x2 rectangular tube at 25 degrees from horizontal and used a 1.5" hole saw. I then sawed through the center of the hole. I will weld tabs to each side of the pieces and drill and tap them to make a clamp to hold the top tube in place.
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As I mentioned earlier I am build the jig as I build the frame so I can reproduce this frame over and over in the future. I am going to make the head tube fixture adjustable so that the rake and height of the head (steering) tube can be changed for different degrees of rake and position. That's next.
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budoka
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been a member of this board since back when it was a part of Chopperweb. been handling the tech side and sharing the admin duties for several years now.
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Re: Irish's CBH CR200

Post by budoka »

ok, ok, you are having waaaaaaaay too much fun. can i come over and play?

i've gotta get done with this moving crap so i can get on with putting the knuck back together.

good luck to ya as you progress!

-dan
-experience is a wonderful thing. It enables you to recognize a mistake when you make it again.
http://knuckleheadsummer.blogspot.com/
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IRISH
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Posts: 87
Joined: Thu Nov 17, 2011 11:31 pm
SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Re: Irish's CBH CR200

Post by IRISH »

You are welcome anytime Dan! Thanks! It is fun to get back to fitting a frame together. I sold the old front wheel that came with the springer so I'm shopping for a 21 now.
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railroad bob
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Re: Irish's CBH CR200

Post by railroad bob »

Nice start Craig, and I think making the jig as you go allows you to make decisions and changes
that are hard to foresee without a huge amount of pre-planning. Should save you quite a bit of time.
Good idea...
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IRISH
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Posts: 87
Joined: Thu Nov 17, 2011 11:31 pm
SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Re: Irish's CBH CR200

Post by IRISH »

Thanks Bob. It's fun as hell too!
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IRISH
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Posts: 87
Joined: Thu Nov 17, 2011 11:31 pm
SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Re: Irish's CBH CR200

Post by IRISH »

OK another update: Over the past couple of days I got the upright that will hold the back bone (top tube) welded in place between the jig rails and I welded two tabs on either side of the notch at the top of the upright so I could attach a U-bolt (which is actually a 2-1/4" muffler clamp I had laying around) to hold the top tube firmly in place in the notch. I realize that this upright is not adjustable for height at this point, but later on if I want to change it for a different frame I can make it adjustable. I'm trying to do this as simply and inexpensively as possible, so I am trying to use materials from my scrap heap.
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So after I completed that I clamped the tube in and lined everything up. I beveled the bottom of the seat tube and tacked it to the cross member. I then pulled the assembly out and welded it out on the bench. Next I'll attach the rear wishbones to the top tube and then it will be time to bend the lower rails. I may need to get some more tubing as I only have 10 feet left and I'm not sure if I can squeeze both bottom rails out of that or not. I am going to use a single lower down tube from the neck, so maybe...
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User avatar
IRISH
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Posts: 87
Joined: Thu Nov 17, 2011 11:31 pm
SELF INTRODUCTION: Hi All,
My name is Craig Irish. I live in Northern California. I've been a member for a long time but I am re registering because the board is new. I have a project build thread on this board call Irish's Old School Chopper Project. I'm glad the board is still going and I very much appreciate Dan keeping it going. Thanks Dan!
Craig

Re: Irish's CBH CR200

Post by IRISH »

I also cut and drilled some aluminum plates for the adjustable neck holder. I need to decide whether to use 3/4" round bar or threaded rod for the neck holder. I am thinking of maybe using round bar and boring a 1/4" hole in the end to be used as a pilot hole for a hole saw for cutting the top and bottom tube notches for the neck.
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curt
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Re: Irish's CBH CR200

Post by curt »

im always jealous of you guys able to keep your shop that clean while working on a project
ever notice when you hit somethin or someone with a hammer you feel instantly better
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Re: Irish's CBH CR200

Post by Russ »

curt wrote:im always jealous of you guys able to keep your shop that clean while working on a project

Same here.

Irish's work shop is cleaner than my kitchen.
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budoka
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SELF INTRODUCTION: I'm a Kentucky boy who's found himself transplanted into Japan. been into turning wrenches as long as i can remember. i love muscle cars, hotrod bikes, and the martial arts.

been a member of this board since back when it was a part of Chopperweb. been handling the tech side and sharing the admin duties for several years now.
Location: Fuefuki Shi, Japan
Contact:

Re: Irish's CBH CR200

Post by budoka »

now THAT'S what i'm talking about! get off the friggin' couch, tell the reality shows to kiss your ass, and actually live some *reality* yourself. that's exciting. and there's too little of it today. that's why people from way back when are worshipped today...they were too busy *doing* to care what anyone else thought.

keep her coming along, man. we're hanging on the edge of our seats over here, waiting. :banana-dance:

-dan
-experience is a wonderful thing. It enables you to recognize a mistake when you make it again.
http://knuckleheadsummer.blogspot.com/
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Just wanted to thank Dan and anyone else involved in getting this board up and running.
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Re: Irish's CBH CR200

Post by Indian Mark »

budoka wrote:now THAT'S what i'm talking about! get off the friggin' couch, tell the reality shows to kiss your ass, and actually live some *reality* yourself. that's exciting. and there's too little of it today. that's why people from way back when are worshipped today...they were too busy *doing* to care what anyone else thought.

-dan

Well said! Gotta go, Idol's coming on.
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