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    This is another ZX-1 modified for an EZ-Lock from this post #200 by NorthQuad.

    Click image for larger version

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    Last edited by elarson; 22 Mar 2015, 11:41 AM.
    Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

    Comment


      Originally posted by robotnik View Post
      So when your ZX plunge frontside after strong braking, there's nothing to stop it ?
      Error here ! The small noise I was hearing is the anti-tips hitting my backrest, not the front caster hitting the ground.
      C6-7 since mid 2002, no hand control nor triceps.
      my website & my job (in France): Accessibility advisor www.acceslibre.eu
      Also working on a French research about Peer counseling and Empowerment.

      Comment


        elarson: anyone else having trouble seeing link for the attachment 56718?

        Comment


          I uploaded it and it seems to work now. See above.

          Originally posted by triumph View Post
          elarson: anyone else having trouble seeing link for the attachment 56718?
          Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

          Comment


            I have been curious about the shock also. On the first ZX-1 it had a X-Fusion O2 RL Air Shock, but on the newer ZX-1 it is a Manitou Radium Shock (see photo).

            We are looking for anything we can to soften/dampen the ride, and I've wondered if there is anything we can do with the shock. Nothing is in the owners manual about filing the shock or how to maintain it.

            Originally posted by robotnik View Post
            - your shock is different. On mine, it is a wonderful air/air shock (no spring, nor oil) but ... no air inside ! totally empty ? Is there any setting to know here ? And why can it be locked ?
            Click image for larger version

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            Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

            Comment


              That's good that you could find the source. I'm assuming you mean the anti-tilt hitting your backrest posts and not your actual backrest. Because we have had so many other parts interfering with the ZX-1 anti-tilt I know how hard it is to locate where the problems are. It really helped me to take video's from different angles to see where the contact points were.

              Originally posted by robotnik View Post
              Error here ! The small noise I was hearing is the anti-tips hitting my backrest, not the front caster hitting the ground.
              Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

              Comment


                Originally posted by elarson View Post
                I know that foam will be a little less of a smooth ride than pneumatics, but it seems like a good compromise for maintenance. I've read that heavy-duty foam tires are really hard to install without extra tools. Would it be the same for a non-heavy-duty foam tire like the Kenda?
                I don't think thats true anymore. The ride is just as comfortable if not more so. I use an arbor press to get the foam filled tire on but this tool should work: http://www.allegromedical.com/wheelc...l-p558655.html


                Is it possible to use a similar size 10" tire, like a 4.10/3.50-4? If yes, would it change the height of the clamshell on the ZX-1? Is it possible to lower the height of the clamshell on the ZX-1 if needed? Even with the 3.00-4 tires our clamshell is about a millimeter higher than the chair and requires lifting it. I would not want to go any higher if we can not adjust the clamshell height.
                4.10 is the width of the tread. 3.50 is the height of the side wall. 4 is the diameter of the hole. So 3.50 + 4 + 3.50 = 11" tire height. The ZX1 comes with 3.00-4 which is 3" wide tread, 3" sidewall and 4 inch hole so its a 10" tall tire or 10 x 3. The distance to the bottom of the axle tube of a chair with 25" wheels and a few degrees of camber is about 11.25". So the bigger tires should fit. They will raise the clamshell about a half inch though. If your ZX1 is setup for 25" wheels the clamshell could be adjusted down a half inch.
                pat@beachmobility.com

                Comment


                  Originally posted by elarson View Post
                  Here I go with more questions....

                  I've been reading about many of you not using the anti-tilt mechanism, and am trying to make a decision about removing it. I'm just not sure if it is even being used with how I have everything configured, and it seems to make it very difficult for me to tilt back and lift the casters off the ground with my husband in the chair.

                  From what I am seeing the maximum I can tilt it back to get the front casters off of the ground is about 2" (5cm), but it takes a lot of effort on my part. Many curb cuts near us are about 1" (2.5 cm), and even then it is hard to get over them, and I feel like I am putting a lot of strain on the fold-down push handles, and am not sure if that is wise.
                  This should be fairly easy and is key for proper functioning of the ZX-1.

                  The depth behind the wheelchair backrest posts and the anti-tilt wheels is about .6" (1.5cm). I don't think we can make it any closer because of conflicts with the wheelchair armrest brackets, which extend quite far back. The COG on the chair is set to 3", but I have the the ZX-1 armrest bracket as far back as it goes in the 5th hole to not interfere with the wheelchair armrest brackets. This is further than the documented amount based on the 3" COG, but we had no choice because he needs the wheelchair armrests when not using the ZX-1.
                  There should be no space between the anti-tilt wheels and the backrest uprights.
                  Your ZX-1 armrest brackets are not adjusted correctly and should be moved forward.

                  We have a lot going on under and behind the chair and it's all quite a puzzle with only millimetres to spare on everything. I don't know if by looking at a photo if anyone can tell me anything more I can do to make it easier to get over curb cuts, but I thought it was worth a try. If not, maybe it just makes more sense to remove the anti-tilt mechanism, because I think it is just making it harder. Also, it appears that the wheelchair armrest brackets hit the ZX-1 armrests and keep it from going too far back, so again, I wonder if it makes sense to even use it.
                  This is your problem. The ZX-1 won't function properly with those manual chair armrest brackets. You need a T-style armrest on the manual chair.
                  see examples 3 and 4 in section 7 here: http://www.tilite.com/documents/TiLi....pdf?mod=12115
                  pat@beachmobility.com

                  Comment


                    Originally posted by robotnik View Post
                    After a close look to your rig Pat, I have questions for you...
                    - you have removed the front caster? So when your ZX plunge frontside after strong braking, there's nothing to stop it ?
                    That front caster was originally put there to limit the armrests from dipping down on sudden stops. That problem was much better addressed when I designed the antil-tilt mechanisms. The front caster is obsolete and does nothing. Why Spinergy continues to include it is beyond me.

                    - what is this big bolt on the front made for ? Hooking your ZX somewhere maybe ?
                    That bracket is for an EZ-Lock docking system that I made for a customer who drives from their chair.

                    -your shock is different. On mine, it is a wonderful air/air shock (no spring, nor oil) but ... no air inside ! totally empty ? Is there any setting to know here ? And why can it be locked ?
                    The shock on the ZX-1 does nothing and if not adjusted to support the users weight can cause problems like spinning of the drive wheels. The reason the manual wheelchair wheels are raised slightly is so that the users weight is transferred directly to the ZX-1s drive wheels. If the shock doesn't support the users weight then that weight is transferred to the manual wheelchair wheels causing loss of traction. Even if the shock was setup correctly for the user, because the ZX-1 driven with the manual wheelchair wheels no more the 1/8" off the ground, there is no room for it to travel. It should be replaced by a solid linkage.
                    If your shock has no air in it I would put at least 90psi in it and then lock it out. Did they include a manual for the shock?


                    - you seem to have the elastomer of the back caster still in place. Mine is "aluminium elastomer" (Alustomer ? )
                    I've read here that with the elastomer, the caster was sometime grabbing on the motors? But I think it gives a smoother ride too? Am I right ? and isn't it possible to jump over small curbs on reverse, if it is too difficult frontward ? (for exemple if you can't pop a wheelie, or if your footplate drags...) I'd like to try, but I'm afraid to put too much stress on the FrogLeg fork with this Alustomer...
                    On the original design we found if the polymer was compressed while in reverse or the caster was just turned to face forward and enough pressure was placed on the backe caster, it could contact the back of the actuator.
                    So instead of lengthening the frame a little or changing to a sold fork, this was their solution. So yes it is now a completely useless overpriced Frogleg with an Alustomer!

                    Sorry, Pat, if I'm too curious let me know? I just want to know how things are working, and why...
                    No worries, I'm more than happy to answer any questions.
                    pat@beachmobility.com

                    Comment


                      Ours has printed on it that it is a Manitou Radium Comp (see post #185). Our documentation is from the original ZX-1 we had (Operators Manual Z100080 Rev 4) and it says nothing about the shock. Do others have this same shock and perhaps the documentation they can post or e-mail to me?

                      It looks to have a schrader (auto) valve on it. Does that mean that a standard pump can be used or is a shock pump needed?

                      Thanks for writing and answering so many questions for us Pat.

                      Originally posted by pattherat View Post
                      The shock on the ZX-1 does nothing and if not adjusted to support the users weight can cause problems like spinning of the drive wheels. The reason the manual wheelchair wheels are raised slightly is so that the users weight is transferred directly to the ZX-1s drive wheels. If the shock doesn't support the users weight then that weight is transferred to the manual wheelchair wheels causing loss of traction. Even if the shock was setup correctly for the user, because the ZX-1 driven with the manual wheelchair wheels no more the 1/8" off the ground, there is no room for it to travel. It should be replaced by a solid linkage.
                      If your shock has no air in it I would put at least 90psi in it and then lock it out. Did they include a manual for the shock?
                      Last edited by elarson; 24 Mar 2015, 10:34 AM.
                      Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

                      Comment


                        I think that you are saying that the center of gravity for the ZX-1 is making it difficult to tilt the front of the chair regardless of the anti-tilt mechanism getting in the way -- is that correct? The center of gravity on the ZX-1 = 5", ZRA wheelchair = 3".

                        My husband has had the "T-style" desk arms with rigid side guards on another chair and we both hated them. They were heavy, hard to get off for transfers, and rattled around a lot. He now has an ADI seatbase with fold down sideguards and swing-away armrests that work very well for him.

                        I had thought that we had just enough room for the wheelchair armrest brackets and the ZX-1, so now I am in a real quandary for knowing what to do. This might sound crazy, but has anyone ever mounted the joystick on TiLite swing-away armrests?

                        They look to be the same diameter at 1". Another idea would be to use the ZX-1 armrest and add an arm stop and hole (part 4 in the drawing below) so it can be used in the ZRA bracket. I don't know, maybe it would just make the whole chair spin around on the camber tube, but it would certainly help with being able to keep his armrests when he is not using the ZX-1, which is most of the time.

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                        Originally posted by pattherat View Post
                        There should be no space between the anti-tilt wheels and the backrest uprights.
                        Your ZX-1 armrest brackets are not adjusted correctly and should be moved forward.

                        This is your problem. The ZX-1 won't function properly with those manual chair armrest brackets. You need a T-style armrest on the manual chair.
                        see examples 3 and 4 in section 7 here: http://www.tilite.com/documents/TiLi....pdf?mod=12115
                        Last edited by elarson; 23 Mar 2015, 6:45 PM.
                        Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

                        Comment


                          Originally posted by elarson View Post
                          It looks to have a schrader (auto) valve on it. Does that mean that a standard pump can be used or is a shock pump needed?
                          a standard pump will work if it supports high pressures... I have one that works up to 300psi.

                          Comment


                            Originally posted by pattherat View Post
                            The front caster is obsolete and does nothing. Why Spinergy continues to include it is beyond me.
                            The shock on the ZX-1 does nothing. It should be replaced by a solid linkage.
                            So yes it is now a completely useless overpriced Frogleg with an Alustomer!
                            AH AH AH ! interesting considerations here Pat !
                            So if I want I can swap this back caster with my Grandfather's Everest &Jenning ? Hopefully it is still in my garden...
                            Ok, if we want to cut the costs we can try to sell these parts on eBay.
                            It's a bit strange to imagine they are only here for the packaging. And without these parts, the price could have been more reasonable... Thanks to the Spinergy guys !
                            C6-7 since mid 2002, no hand control nor triceps.
                            my website & my job (in France): Accessibility advisor www.acceslibre.eu
                            Also working on a French research about Peer counseling and Empowerment.

                            Comment


                              Yup, If you can make that fork fit, sell the pair of Froglegs and the shock too. The ZX1 I use the most has just one unitine fork in the rear and no shock.
                              pat@beachmobility.com

                              Comment


                                Interesting discussion. Hope you don't mind more questions....

                                I just read this after I went to put air in the shock and failed miserably. It did seem to have air in it, but after my effort to add air and check the pressure, I lost most of the air and could not replace it (pressure gauge on compressor is wonky). I'm a bit confused.... if the shock does nothing, why should it be replaced by a solid linkage or have 90 psi in it as mentioned in earlier posts? Does this mean that the shock could literally just be taken off and not be replaced with anything?

                                Also interesting about the FrogLegs forks. We had really wanted them for front forks on the wheelchair, but could not get the configuration right with TiLite when configuring the chair. I might be game for trying to swap them out for the TiLite standard forks. Does anyone know if the FrogLegs forks used for the 3" and 4" Epic casters on the ZX-1 can be swapped with TiLite standard forks used for a 5" caster?

                                I feel bad asking all of these questions, but in the past I have not been able to get many answers from Spinergy or our dealer. Perhaps that has changed and I should try again, but like robotnik, I like to understand how things work.

                                Originally posted by pattherat View Post
                                Yup, If you can make that fork fit, sell the pair of Froglegs and the shock too. The ZX1 I use the most has just one unitine fork in the rear and no shock.
                                Partner of an incredible stroke survivor. Limitations: hemiparesis and neglect (functional paralysis and complete lack of awareness on one side). Equipment: TiLite ZRA 2 and 2GX, Spinergy ZX-1, RioMobility Firefly. Knowledge: relative newbie for high-level equipment (2012), but willing to try to help others who are new with similar limitations (definitely not a guru, but inquisitive).

                                Comment

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