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  • Schematics for zx1

    Hi,

    Anyone know now if there are any electronics schematics for the ZX1?

    my ZX1 still duets out occasionally and have someone who works in electronics that knows this kinda things looking at making me a switch instead of having to unplug a lead in my ZX1 under the hard case which is impossible for me to do myself.

    So so if anyone has any electronics info on ZX1 much appreciated, I've had my ZX1 for over a year now and love it, got off-road tyres which have so much more grip I only have a few things like beeping noises from it that I need to fix a lot of which I think are loose wires but no dealer now in UK at present and I like to fix things.

    Thanks

    Comment


    • FYI: Re my post about friend's ZX1 clamp not releasing to let chair out of it: dealer said he was apparently holding the "attach" control all the way on a regular basis, instead of stopping when the tires of the wheelchair were barely swiping the ground. He said there's a lever or switch to release it, but the user couldn't reach it.
      Didn't have a chance to go into detail with him. I know there a lever to let the ZX1 "free-wheel" so it can be manually pushed, but that doesn't release the clamp over the axle bar. My older manual is very limited but hope to research this more as I don't want to be caught in this situation out on a trail.

      Comment


      • Good timing to bring this to the top again. An update:
        I purchased the used programmer for $199 from CSE Mobility in Red Oak Texas, 972 757 7636. I dealt with Cole and although it was as-is, he immediately shipped a second one and emailed a call-tag. The new unit works perfectly. I reattached the first one and it confirmed it was the original problem by not working again. Because my life was busy and I was concerned I might have a problem with on-board electronics (nightmare!!), I didn't finish the lift I was making. Actually, I used it once and it worked/will be serviceable, however the 1.25" thin-wall square tube (recycled for my Weber grill) I used for the main pillar started to bend!
        So the ZX1 is ready for a real road test (previously it was programmed with huge response lags and such conservative dynamics, I wouldn't use it)

        Random thoughts: AFAIK, you're really stuck if the unit dies while you're grasped by it! There's no easy way to un-latch it if the linear motor fails other than disassembling it which is near impossible for a tim-stuck in east bunfuck!

        It certainly would be good to have a way to interrupt power to re-boot in case of a problem in use, but that requires a low resistance and accessible switch. How to?
        I'll be looking hands-on at this possibility.
        69yo male T12 complete since 1995
        NW NJ

        Comment


        • Did some "driving"
          The chair is nice in the garage, patio, deck, barn-house. It's nice, the feeling of being propelled and not having to work at it.
          The thing is problematic going in/out of the house, especially out! We have a Anderson sliding door; there's about a 1" drop from the flooring to the sill the screen tracks are on, then 1/2" onto the bricks of the patio. The friggin thing gets stuck! I try raising the chair/NG; I lo0wer the chair so the wheelchair tires get some traction: it goes out with me pushing the arms down and pulling the joystick together.
          I go on the road and into the yard. Not too much work getting stuck! My wife assists-even with her pushing, I'm spinning the slicks. I unlatch and she drives the ZX back while I wheel.

          The machine doesn't stay centered at all; any difficult uneven surface driving and the machine tire is agains one of the chairs!

          Not impressed!
          69yo male T12 complete since 1995
          NW NJ

          Comment


          • Originally posted by pfcs49 View Post
            Did some "driving"
            The chair is nice in the garage, patio, deck, barn-house. It's nice, the feeling of being propelled and not having to work at it.
            The thing is problematic going in/out of the house, especially out! We have a Anderson sliding door; there's about a 1" drop from the flooring to the sill the screen tracks are on, then 1/2" onto the bricks of the patio. The friggin thing gets stuck! I try raising the chair/NG; I lo0wer the chair so the wheelchair tires get some traction: it goes out with me pushing the arms down and pulling the joystick together.
            I go on the road and into the yard. Not too much work getting stuck! My wife assists-even with her pushing, I'm spinning the slicks. I unlatch and she drives the ZX back while I wheel.

            The machine doesn't stay centered at all; any difficult uneven surface driving and the machine tire is agains one of the chairs!

            Not impressed!
            Shortly after I purchased my zx1 I ordered knobby tires from an online tire place and I've kept them on for the past 4 years. Mainly got them to traverse snow and ice but they proved useful for going over grass and dirt road too, so I have kept them on.
            Also, when I back into unit, and before I hook up I glance at the distance between the wheelchair tire and the zx1 tire, trying to make sure I'm about 1 1/2" or so from zx1 tire edge. It's my way of trying to have the clamp "centered" on my camber bar.

            A quirk I'm guilty of is that I must lock my wheelchair brakes when in my van with zx1 hooked up and ready to transfer - I grab onto the stabilized wheelchair tire to complete the transfer to driver or passenger seat. However, if I forget to unlock the wheelchair brake and try to run the zx1 I'm in big trouble. I'm squirrelly all over the place and then must detatch and re-attach, often while still in my van as the clamp has slid over and with the wheelchair tire smack up against the zx1 tire.
            Trying to pay more attention to this type of "senior moment".

            Re patio door: Yes! I have similar issue when trying to traverse our patio door/screen threshold. If someone else is present I have them stand by as I feel like I will flip forward. Yes, I have tried that trick of pushing down on armrests while pushing joystick, especially when getting over a small curb outdoors.

            Comment


            • Originally posted by pfcs49 View Post
              Did some "driving"
              The chair is nice in the garage, patio, deck, barn-house. It's nice, the feeling of being propelled and not having to work at it.
              The thing is problematic going in/out of the house, especially out! We have a Anderson sliding door; there's about a 1" drop from the flooring to the sill the screen tracks are on, then 1/2" onto the bricks of the patio. The friggin thing gets stuck! I try raising the chair/NG; I lo0wer the chair so the wheelchair tires get some traction: it goes out with me pushing the arms down and pulling the joystick together.
              I go on the road and into the yard. Not too much work getting stuck! My wife assists-even with her pushing, I'm spinning the slicks. I unlatch and she drives the ZX back while I wheel.

              The machine doesn't stay centered at all; any difficult uneven surface driving and the machine tire is agains one of the chairs!

              Not impressed!
              Here are some tips to get the ZX1 to do what you want it to do:
              1. Remove the anti-tilt mechanisms. You don't need them and they hinder the ZX1s ability to go over obstacles.
              2. Remove or just unplug the proximity sensor. The sensor reduces power by 40% when the rear manual wheels are lifted a certain height. Just use caution when turning too quickly while the manual wheels are more than 1/8" off the ground.
              3. Adjust the armrest in so that they touch the uprights of your backrest. This will keep the ZX1 centered.
              4. Adjust the armrest back so you can raise your front casters atleast 3" off the ground when you lean back. The armrests will keep you from tipping all the way backwards.
              5. When on grass keep your weight back. This will keep the weight off the front casters and allow them to raise up over bumps. The limitimg factor off road for the ZX1 is the small front casters of your manual chair. It doesn't matter how much power or traction the drive wheels have if your 3 or 4" casters dig in to the ground, you aren't going anywhere. If you plan on going off the pavement alot and want to go fast, get a Freewheel attachment. It works amazingly well with the ZX1.
              6. When approaching a curb like your slider, Raise the back wheels a bit, this keeps your manual wheels from hittng the curb before the drive wheels and causing traction problems. Lean back and bump your front casters over while slowly pushing the joystick forward then power the drive wheels over. If you go in and out the slider alot just add a 3/4" threshold ramp from a local hardware store on each side.


              The ZX1 was never intended to be an off-road solution, there are many powerchairs whith 8 or 10" pnuematic front caster wheels out there that would easily out perform it if that is your main purpose. It's primary purpose is for people that prefer a manual chair at home but are unable to push up ramps or steep terrain when going out.


              If you follow all these tips I'm pretty sure you'll be a little more impressed.
              pat@beachmobility.com

              Comment


              • Thanks for the coaching, Pat!
                Sorry for the relatively negative review-I'm sure I can get this working better for me, especially with your great suggestions. This testing was done with my old Kurshall 3000GT? chair that I got used 20 years ago-it's too small and only used as a spare. My "house" chair is a POS Ti deal that I bought 15 years ago with the stupid adjustable camber cantilevered stub axles that won't work with the ZX. My other chair is a Ti I love with a normal axle but a PITA to get out of the car unless I get in first. I'm in the process of getting a new chair which will replace the existing POS house chair and be used with the ZX1. I'll be able to roll over and mate with the ZX anytime I want to go exploring, and when the olUntil then, this stuff is sort of back burner stuff, so nothing is compelling except I'd like to see it work out so I can justify finishing the hoist and get off-road tires, certainly do a battery conversion because 5mi isn't far enough!

                1/I'll remove the anti-tips and weigh it-looks like a fair amount of solid stainless stock!
                2/Consider it done
                3/This sounds like a great move! I should have not shot my mouth off so quickly about the shortcomings and waited until the engineer part had time to analyze and think stuff through. One thing that was bothersome was that the arm-tubes would rub the chair tires sometimes. This was probably because the ZX was moving so much laterally. Without taking time to have a good look, my first thought was a couple split shaft collars with horns welded on mounted on the axle, to guide the ZX home to center when mating. I will try only adjusting the arms and see if that is adequate.
                4/Not clear about this one. I don't see how this will change my ability to wheelie the chair; changing the armrests so there is an up-angle, maybe, but there's no provision I see for that. Please explain.
                5/In our rugged yard, my 5" casters were unweighed and not digging in; the indoor tires were spinning. I'd expect dirt tires to work MUCH better. The FreeWheel sounds like a cool plan!
                6/This drop when exiting the slide, I alway wheelie down. If I slowly go over it (like when I'm trying to carry something), there's a huge attitude change going over it and I need to lean back even though the total drop is likely an inch and a half. I've thought of ramping it, but the major drop (~1") is from the glass door to the threshold which includes the tracks for the screen and they are at the outer edge of this 4" deal. Now I'm seeing how I could lag a flat piece to carry the threshold height out to just before the screen tracks, then put a loose tapered wedge/ramp piece outside, leaving just a small gap to traverse. And this will make manual chair accessible better also! (Just another thing to put on my list of things I never seem to get to)

                And if you had any advice regarding lithium battery swaps on the cheap, I'd truly appreciate it!
                Last edited by pfcs49; 05-22-2017, 08:52 PM.
                69yo male T12 complete since 1995
                NW NJ

                Comment


                • I've done some adjustments on my ZX too,
                  - I've removed the anti-tips, it helps on small curbs, but you'll have to get used with the "dive" of the armrest. Especially with the joystick's side when you use the motor's brake, it can be surprising...
                  - I've removed the high adjustment nut stop of the clamshell, near the proximity sensor. Now I can raise my chair to the maximum without going in crawl mode,
                  - same problem of ZX sliding laterally on the camber bar. I've used 2 Serflex collars firmly bolted on the bar to fix that. Very simple and unexpensive.
                  - same difficulties on small curbs (more than 1"). I climb them in reverse. To make it easier, I've swapped the Froglegs forks and wheels. On the back of my ZX you can find the 4" caster with the elastomer shock absorber, while the 3" caster with aluminium washer is at the front.
                  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


                  • The short wheelbase on your Kuschall will make it harder for the front wheels to bump up over obstacles. Center of gravity also plays a part. The clamping mechanism on the ZX1 is designed for a 1 1/4" camber tube. It should clamp firmly but still allow the camber tube to rotate inside the clamping. It's possible that your Kuschall has a smaller, possibly 1 1/8" cambertube causing it to shift laterally too easily. Spinergy may have a thicker carbon fiber bushing to help with that. I've never felt the need for shaft collars although they may help but if you aren't centered and the clamp clamps down on one you may damage something like the actuator. If your armrests are adjusted correctly, they will guide you in centered. I line mine up directly over my manual wheels.

                    On number 4, the ZX1s armrest act as an anti-tip to keep your manual chair from tipping too far back when in a "wheelie". So if they are set too close(front to back) to your backrest, your front wheels won't be able to "lift up" over obstacles. Set them so they are about 2 3/4" behind the backrest when your chair is connected and rear wheels are just slightly above the ground.

                    Knobby tires are a bit bumpy and noisy indoors. I use these http://www.monsterscooterparts.com/3...ead-kenda.html They are quiet and feel like a pnuematic and have good tread. They're are twice as much as a gray foam filled which will work as good but I prefer black. Dealing with air filled drive wheels are a PITA. If they are too low your clamp won't line up correctly with your cambertube and you won't get as much clearance when raising the rear manual wheels when going ove an obstacle. Not to mention the possibilty of getting stuck with a flat.

                    I've never felt the need to switch to lithiums. I use only VMAX batteries. https://www.vmaxtanks.com/ . I have however added two 6ah batteries in addition to the two 15ah batteries giving me a total of 21ahs. I use it everyday, all day and never have a range problem. Charge them every night or once a week if you are not using it daily and they will last a year.

                    Another thing to consider is the front airshock. Either make sure it has the proper psi for your weight or better yet set it to "lock out" like I do. It really doesn't absorb any shock.

                    Also that front caster on the ZX1 was designed to minimize the armrest "dive" that Robotnik mentioned. It really isn't that effective and can be removed completely, as I have done, including the fork.
                    Swap it with the back fork like Robotnik says.

                    Another important thing that Robotnik has done is removing those "stop bolts" that limit the range that the "swing arm" can raise your chair. They are a bad idea for a few reasons and will cause the actuator to fail prematurely.
                    pat@beachmobility.com

                    Comment


                    • Thanks for sharing this pattherat. There still seems to be a lot of grey area around the anti-tilt mechanism, and I'm going to remove it too. Also thanks to robotnik for his input. We have had my husband's ZX-1 in storage for a while due to moving. I have the upgrade for the lithium batteries, but need to get a programmer to do it. I have a feeling I will have lots of questions, and hope you all don't mind supporting me. I've been putting it off, but really need to do it soon.
                      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 had two times the same issue with my ZX-1 and need your input.
                        Each time I think I had "overloaded" the device, asking maybe for more power it was able to give : First time in a short but big incline, 2nd on the beach with my FreeWheel in front, but with too deep sand.
                        As a result, the ZX-1 stopped and on the joystick one light started to blink red.
                        Each time I was in the middle of nowhere, and had to wait for help. But the issue is the device has to be resetted to re-start, and as far as I know, you need to ... plug it in to do that. And that's not so easy if you don't have a plug in your neighborhood !
                        My question is : Is there another solution to quit this "fail mode" ? I tried to unplug the joystick, the batteries, with no result.
                        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


                        • Originally posted by pattherat View Post
                          The short wheelbase on your Kuschall will make it harder for the front wheels to bump up over obstacles. Center of gravity also plays a part. The clamping mechanism on the ZX1 is designed for a 1 1/4" camber tube. It should clamp firmly but still allow the camber tube to rotate inside the clamping. It's possible that your Kuschall has a smaller, possibly 1 1/8" cambertube causing it to shift laterally too easily. Spinergy may have a thicker carbon fiber bushing to help with that. I've never felt the need for shaft collars although they may help but if you aren't centered and the clamp clamps down on one you may damage something like the actuator. If your armrests are adjusted correctly, they will guide you in centered. I line mine up directly over my manual wheels.

                          On number 4, the ZX1s armrest act as an anti-tip to keep your manual chair from tipping too far back when in a "wheelie". So if they are set too close(front to back) to your backrest, your front wheels won't be able to "lift up" over obstacles. Set them so they are about 2 3/4" behind the backrest when your chair is connected and rear wheels are just slightly above the ground.

                          Knobby tires are a bit bumpy and noisy indoors. I use these http://www.monsterscooterparts.com/3...ead-kenda.html They are quiet and feel like a pnuematic and have good tread. They're are twice as much as a gray foam filled which will work as good but I prefer black. Dealing with air filled drive wheels are a PITA. If they are too low your clamp won't line up correctly with your cambertube and you won't get as much clearance when raising the rear manual wheels when going ove an obstacle. Not to mention the possibilty of getting stuck with a flat.

                          I've never felt the need to switch to lithiums. I use only VMAX batteries. https://www.vmaxtanks.com/ . I have however added two 6ah batteries in addition to the two 15ah batteries giving me a total of 21ahs. I use it everyday, all day and never have a range problem. Charge them every night or once a week if you are not using it daily and they will last a year.

                          Another thing to consider is the front airshock. Either make sure it has the proper psi for your weight or better yet set it to "lock out" like I do. It really doesn't absorb any shock.

                          Also that front caster on the ZX1 was designed to minimize the armrest "dive" that Robotnik mentioned. It really isn't that effective and can be removed completely, as I have done, including the fork.
                          Swap it with the back fork like Robotnik says.

                          Another important thing that Robotnik has done is removing those "stop bolts" that limit the range that the "swing arm" can raise your chair. They are a bad idea for a few reasons and will cause the actuator to fail prematurely.
                          I let this go, waiting for an axle and mounting kit for my TR/c so my house chair will mate the ZX1. (currently it has a stupid adjustable camber box-frames POS on it!)
                          Just letting you know, I'm still here on the sidelines. The parts are ordered and should be here soon at which point I'll do the above stuff and go out on the country roads surrounding my home.
                          69yo male T12 complete since 1995
                          NW NJ

                          Comment


                          • My ZX-1 sat unused for a long time (about a year). I replaced the batteries (using the VMAX batteries recommended by pattherat). All charged up spiffy, and it will roll around great the problem is when I switch it to move the mechanism that clamps the camber tube the black controller box just clicks and nothing else happens. I have reset all the wires. It worked fine before it sat for a while (but was in a place where people could have messed with it). Any ideas on what the issue is?

                            Comment


                            • if you're qualified, (you'll have a VOM), check the voltage to the linear motor that operates the clamp while activating that function.
                              No voltage: follow both legs of the circuit to ground and box to see if there's an open circuit. (I can't go out now but will see if a relay is visible on control-box later)
                              Significant voltage: something seized or linear motor shot.
                              69yo male T12 complete since 1995
                              NW NJ

                              Comment


                              • Originally posted by pfcs49 View Post
                                if you're qualified, (you'll have a VOM), check the voltage to the linear motor that operates the clamp while activating that function.
                                No voltage: follow both legs of the circuit to ground and box to see if there's an open circuit. (I can't go out now but will see if a relay is visible on control-box later)
                                Significant voltage: something seized or linear motor shot.
                                More of a software guy but work at an autonomous driving startup so can get one of the robotics guys to help me. Was hoping for some magic reset button...

                                Comment

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