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Thread: TR3 Camber Tube Position

  1. #1
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    TR3 Camber Tube Position

    EDIT: This post started with just one question then blossomed. I forgot to change the title.

    Hi Everyone-

    First I want to thank everyone for their great advice and patience with me as I ask difficult to answer in a forum questions. Second, I have more questions:

    1. If I order a Tilite TR3 with a 14.5" RSH can I flip the camber tube over to get something closer to 13.5" RSH?

    2. I am likely to get a CF ADI 2 Point Pro 10" Active seat back. I will likely use a moderate forward angle (acute to the seat).
    a) What seat back height posts on the chair do I need to get for the mounting hardware?
    b) Should I get the 4" deep rigidizer bar (Tilite)?
    c) If I order a ZR/ZRa are the back posts also 1.25" in diameter? If so, does that make the mounting hardware a special order?

    3. What are the pros/cons behind getting a 90 degree with +1 versus an 85 degree +0? Wouldn't they position the feet in approximately the same location? I transfer by standing on my leg, twisting, and falling backwards and I tend to like my leg (LBK amputee) tucked under me if that makes any difference.

    I already met with the PT and seating specialist and I am meeting with the Tilite rep sometime (hopefully this week) to discuss possible configurations and what chair would work the best for my needs. Thanks again!

    Best,
    E

  2. #2
    Senior Member brian's Avatar
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    1. No.

    Well, yes, but no, not really

    Since the frame measurements are fixed if you adjust your RSH your caster angle will be wrong.

    EDIT: 14.5" is the minimum RSH with 24" wheels. This likely means the axle is already is flipped to be inside the frame instead of below the bottom tube.


    2. ?


    3. I will always get no more than 85degree front end for two reasons:
    a) When I push doors and other objects I'd rather know there were a tiny bit sticking out to push with. Plus, at 90 degrees I'd have to get new kick plates installed at knee height.
    b) I have folding luggage carriers and 90 degree would make whatever I'm carrying fall forward.
    Last edited by brian; 09-17-2012 at 10:45 AM.

  3. #3
    Wow. this is like exam paper in college.

    I'll answer that no 2 part. I dont have experience with CF ADI backrest, but am using aluminum one.

    2 (a).It doesnt really matter how tall your back post is. I've used a 10" ADI backrest, with a total height of 13". the post still have about 3"-4" of excess.
    2 (b). Yes, you should. it's free anyway. but i would suggest one thing. if you're thinking about using a rigid backrest, order a taller backrest (18" maybe?or 20"?). you'll get the rigidizer bar at a higher position, which makes it double as a push handle and as a lever to lift the chair.you can always cut the top end of the post.the downside is that you cant use the standard backrest, but since u're using ADI's, i dun think thats an issue.
    2 (c). You dont need custom hardware for ZR/ZRa.

    Cheers!
    walking is OVER-RATED!!!

    Broken in August 14th, 2003. T9-L1 complete.

  4. #4
    Quote Originally Posted by Essie View Post
    c) If I order a ZR/ZRa are the back posts also 1.25" in diameter? If so, does that make the mounting hardware a special order?
    I requested 1.25" diameter back post tubing on my fixed back ZR2; the standard back post tubing is 1". The reason I opted for this is that ADI offers a 1.25" clamp that does not completely encircle the tubing, the outside part of tubing remains open/exposed. This removed a potential obstruction to mounting my custom sideguards.
    Attached Images Attached Images  
    Last edited by stephen212; 09-17-2012 at 12:05 PM.

  5. #5
    ..and your 1.25" tubing looks sooo much better; it should be standard.
    C5-6 Complete - 8/13/1982

  6. #6
    Seconded; that has been an issue withmy backrest and sideguards. Did you have to pay much extra for a rounded rigidizer bar that would accommodate an ADI backrest?

    Gosh I love that chair. So well put-together. Beautiful.

  7. #7
    Quote Originally Posted by chaiale View Post
    Seconded; that has been an issue withmy backrest and sideguards. Did you have to pay much extra for a rounded rigidizer bar that would accommodate an ADI backrest?

    Gosh I love that chair. So well put-together. Beautiful.
    My ZR2 was the first TiLite to feature the arced, oval-tubed rigidizer --I pitched the idea to them while at an Abilities Expo. I did not pay anything extra for it as they were intrigued enough by the design to try it out on my order. (It required the purchase of special tooling to pull it off.) You can find the CAD drawing of my chair here and more photos here.

    To make the chair even more minimalist looking, I requested that the under seat rigidizer bar be a flat, unbent piece of oval tubing, which only works when using a solid seat pan. I think an arced under seat rigidizer would look very nice, though. Other manufacturers offer it.

  8. #8
    Senior Member tooley's Avatar
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    sorry to de-rail the OP's thread, but I have a question for all the ADI users out there.

    I had purchased the same solid back depicted on stephen212's chair in hopes to use it on my Lasher some time ago. Initially I had e-mailed ADI with no response regarding the large diameter attachment brackets for the 1-points. Assuming they had gone belly up I gave up on the idea. Now having seen one of their employee's posting here recently I searched their website but can't find the parts I need (the attach brackets stephen is using).

    Does anyone know if that style attach bracket is still available? I hesitate to call the company because 9 times out of 10 the person that answers the phone (at most mobility companies) knows nothing about the products they sell and couldn't care less. I would love to find these pieces through another source because I don't like being ignored but do want to put this $500 backrest to use.

  9. #9
    Quote Originally Posted by tooley View Post
    sorry to de-rail the OP's thread, but I have a question for all the ADI users out there.

    I had purchased the same solid back depicted on stephen212's chair in hopes to use it on my Lasher some time ago. Initially I had e-mailed ADI with no response regarding the large diameter attachment brackets for the 1-points. Assuming they had gone belly up I gave up on the idea. Now having seen one of their employee's posting here recently I searched their website but can't find the parts I need (the attach brackets stephen is using).

    Does anyone know if that style attach bracket is still available? I hesitate to call the company because 9 times out of 10 the person that answers the phone (at most mobility companies) knows nothing about the products they sell and couldn't care less. I would love to find these pieces through another source because I don't like being ignored but do want to put this $500 backrest to use.
    The ADI "employee" you're referring to is the owner and company president, Todd Hargroder. The clamps on my ADI back are not listed on their website. I knew of their existence through a mutual friend and user, so I inquired about their availability as I was spec'ing my chair. I suspect ADI does a lot of prototyping and customization, so not every component becomes a standard or much-requested item.

    I have always found Todd to be very helpful and accommodating but I agree that it does sometimes require persistence and follow-up to get a response to questions/inquiries, which can be frustrating. No company is perfect but ADI is not indifferent to its customers. I suggest emailing Todd: todd@adirides.com. If he doesn't respond at first, try again .

  10. #10
    Senior Member DaleB's Avatar
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    Iirc, in the early days, and in the pics on his site, Lasher simply down sized the tubes to accommodate the standard ADI clamps.

    In 2009 I contacted Todd and he CAD'd up and fabricated a custom set of brackets for th 1.375" tubing on the BT-Mg back rest canes. His professional CAD time wasn't cheap, and I have no idea if he still takes projects like this, but he is an expert, and was well equipped to do the work, at the time.

    If not, I have a set of 1.375" ADI fixed elite brackets I'll sell you...but you don't wanna know what I paid for them...then add the 'only person on earth with what you need' premium and the price would just be absurd.



    J/k, I enjoy having them in my tool box, just in case.



    I bet he'd make some, but if he knows it's you calling, maybe not. LOL!




    Quote Originally Posted by tooley View Post
    sorry to de-rail the OP's thread, but I have a question for all the ADI users out there.

    I had purchased the same solid back depicted on stephen212's chair in hopes to use it on my Lasher some time ago. Initially I had e-mailed ADI with no response regarding the large diameter attachment brackets for the 1-points. Assuming they had gone belly up I gave up on the idea. Now having seen one of their employee's posting here recently I searched their website but can't find the parts I need (the attach brackets stephen is using).

    Does anyone know if that style attach bracket is still available? I hesitate to call the company because 9 times out of 10 the person that answers the phone (at most mobility companies) knows nothing about the products they sell and couldn't care less. I would love to find these pieces through another source because I don't like being ignored but do want to put this $500 backrest to use.
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