A few mods/projects for my TaoTao Atm-50 A1 By glavey (Read 25,056 times)

[cyborg]

You have access to a solid modeler don't you,,,those are some beautiful mounting cases you made ,,,totally pro ,,,real nice work,,,man i wish i had one of those,,,,i was telling another member on another thread i'd fall down from exhaustion making stuff,,,,i think your on track to getiing this well sorted out,,,and don't get me wrong i'm not telling you how to do your build ,,but try not to get too overly complicated,,,i had a tendency to go that way as well till a very experienced designer / builder told me the off-road adage "if it's not there it's not fu(#ing up",,,i don't think you'll have a problem either with the operating temps,,,they don't get that hot really,,,i was riding yesterday afternoon 100+ road temps easy,,,no problems, ,,,it just occurred to me that the gauge mount you have in your hand is worth more than the bike your building on,,,WOW,,,,

[glavey]

Yes, I have a 3D printer; a Printrbot Jr. V1 to be specific. Feel free to ask any questions you have about it, I love talking about it.

I am trying my hardest to eliminate any possible points of failure I can, but at the same time I want the wiring and most of the plumbing to be modular so I don't have to desolder a large portion of the wiring harness to add or remove a wire or completely disconnect the entire pump/rad assy. to change a fitting.

Today I'll finish mounting the gauges and speedometer and go for a test spin. After that I'll try and take some profile shots of all of the plumbing parts, pump, rad, and scoot and try to mock up locations in Gimp.

My idea for the mounting location of the rad isn't really ideal; it won't get much air flow without some air scoops I have yet to design. I'll take a picture later to show what I have in mind.

[cyborg]

The parts you have made are nothing short of astounding!! very nice design and execution is damn near flawless,,,BRAVO!!!!!!,,,now the $64000 question,,,how much for the Printbot,,,i may have to have one of those,,,,

[glavey]

I started today by realizing that my garage wasn't well lit enough and temporarily rigged up a shop light above my scooter.


I installed the gauge holders, gauges, and almost went for a test ride, but then right when I put my helmet on, putt...putt...putt... stall. Doh! Ran out of fuel. Oh well it gave me an excuse to go out to home depot and buy a few more electrical connectors I needed.








Now I really did go for a ~15 minute test ride. The oil temperature topped out at 115c (239f, my gauge is in celsius) and averaged between 95c and 109c (203f - 228f).

After I got home I noticed something that my engine sounded... different. There is a ticking sound that corresponds with engine rpm. I don't think it's the valves (although I will check those tomorrow). I can't really pinpoint the location of the sound, which makes me worry it maybe one of the internal components like Ekkk!!... a crankshaft.

I'll try and run the engine without the cvt belt and weights to eliminate the drivetrain as variables. Perhaps I'll buy a mechanics stethoscope to help me.

[glavey]

Aug 2, 2014 15:44:06 GMT -6 cyborg said:

The parts you have made are nothing short of astounding!! very nice design and execution is damn near flawless,,,BRAVO!!!!!!,,,now the $64000 question,,,how much for the Printbot,,,i may have to have one of those,,,,

The one I bought isn't being made anymore; it cost me $400 + shipping. They did a V2 of it with upgrades for I think $600 or $700 + shipping but I don't see it on their site anymore. The closest model to mine that is being produced is the Printrbot Simple Maker's Kit for $349. They also have a metal version of it (which I am ever so envious of) for $539.

Here is a picture of the version I have (not my picture):


Edit: I believe every printrbot is open source, meaning if you can find someone with a laser cutter, you can build your own.

[cyborg]

Sorry Rich,,,you've been demoted,Glavey you are my new hero,,,

[glavey]

[cyborg]

I have a surface and probe style steth invaluable in pinpointing errant noises,,,,,,ticking would probably be the valves tho,,,oh,,,very nice job on the design /fabrication /and also the installation solution,,,very professional,,,HEY GUYS!!!!! you takin notes???!!! i am

[glavey]

Damn these freakin' headaches! Everyday for the past week. I think I know what is causing them. I was recently put on blood pressure medication to help prevent migraines that I get at least once a week. I have to take them twice a day. I already have a medication that I take at night so it is easy for me to take another one then, but remembering to take one a few hours after I wake up is turning out to be difficult. I keep forgetting to take the medicine and I'm guessing that is the source of the headaches (but not the migraines).

And I hate/am afraid of taking acetaminophen/ibuprofen because when I was younger... lets just say I had a lapse of judgement that caused me to take ~9000mg of acetaminophen in a day and I'm pretty sure I effed up my body real good.

Lets see how tonight goes.

[richardv]

Thanks for the write up. I just wish I had kept up on the electronics so I could follow that better. There may be some questions later after you get the project closer to completion. Wish I could afford a print bot. It would also be great for model railroading, etc..

I'm surprise with you assessment of acetaminophen (Tylenol). I had an accident in 2000 with a concussion and fractured skull and was on 8000mg a day for two weeks, 6000mg for a week and then 2000mg for another week with no ill affects. It's the only thing I can take for pain that doesn't affect my bursitis and gout. And it's also very affective for anxiety, which was it's original intent.

[glavey]

Perhaps under medical supervision it is ok to go past the usual dosage limit of 4000mg/day. I would usually take ibuprofen but I am on medication that recommends against taking it. Also, it recommends against alcohol which I am fine with, I never liked the stuff anyway; it always gives me an INSTANT headache.

I've never herd of acetaminophen used for anxiety. I've had social anxiety/generalized anxiety disorder and depression for as long as I can remember, for which I am on the previously mentioned medication. I also found that certain sleeping pills do relieve my anxiety symptoms, unfortunately that also make you, well, sleepy, which is quite useless when I would have to take one before I go out somewhere. I would be essentially fighting a sleeping pill while driving or scooting. I'm not going to do that.

Feel free to ask any and all the questions you want. I, myself, am not too knowledgeable in electronics or programming; I just build computers.

[glavey]

I went to harbor freight and bought a mechanics stethoscope and had a family member give me an old drum-type stethoscope. I'll check the valves and then have a listen for the noise. If I can get my p.o.s. camera to record some decent audio, I'll post a video.

But before all of that I have to help my mother make a protest sign (bet you didn't see that coming!). She'll actually be protesting protesters, but I won't say what the subject matter is, I don't want to start anything in this thread.

Hopefully I won't have to bail her out of jail; she did say that one of the things on her bucket list is getting arrested for protesting. Her inner hippie is strong.

[Bashan]

I've had patients take more acetaminophen and be fine. The big thing is get your liver enzymes checked. If they are within normal limits don't worry. You have to realize the redundancy of the body...10% of kidney function is survivable, cardiac supply flow can be down to 20% in some people before angina, 20% of original liver mass for some people is OK. The body has evolved to allow for catastrophic injury and a lifetime of infections and toxins. Get some blood work done Glavey, you can probably quit thinking about it.

On to the oil pump. That oil pump has a simple bypass function in that it will push up to a certain amount and then a valve shunts back to the inlet side. So check valves are a good idea. Are you sure that's diaphragm? I thought it was impeller. But we had the discussion years ago that it's not good to blast oil through the system. You want it to be slow to allow heat exchange to occur. So sometimes less is more. Rich

[glavey]

The acetaminophen thing happened quite a while ago; I'm pretty sure I'm ok. I now recall it as more like 11,700mg (I'll be honest and risk getting banned for discussing drugs - it was 18x darvocets with 650mg of acetaminophen in each pill). I woke up feeling pretty normal, but then the urge to throw up kept coming back every 5 or so minutes. Other than that I felt fine.

Once I had realized what I had done and how much I had taken I called the poison control hotline and they told me to go to the ER and so I did.I wound up getting hospitalized for about 3 or 4 days with blood draws every hour and arterial blood gasses twice a day (those really hurt, and they sure did help me get over my needle phobia).

I actually just had some blood work done, but I don't think it was the kind that tests your liver. I think it was called something like baseline glucose; I had to fast for 12 hours before the tests. The tests came back all normal.

On to less serious topics! Yes, the pump is a diaphragm type; the oil comes out in little spurts and the sound the pump makes sounds like... the best analogy I can think of is... well I can't think of one right now, but it doesn't sound like an impeller. I'll try get a video of it soon.

The pump is rated at 90 liters/hour which is about 24 gallons per hour with gasoline flowing through it. I would assume that moving something thicker like oil will reduce that.

I have a separate check valve and I tested the pump by trying to blow into the "out" port and nothing went through so it appears that it has an internal check valve too.

Here is the link for the pump.

[glavey]

I did a quick and dirty sketch in gimp to show where and how I plan to mount everything.


Red lines represent fuel hose, blue parts are components. All fuel lines are 5/16"

#1 - Adapter from the threaded oil drain hole to 1/8" npt female to a 90 degree 1/8" npt street elbow to a 5/16" hose barb adapter

#2 - fuel pump

#3 - radiator. It will be mounted with the end without the hose connections angled away from the scooter. I am aware this is not an ideal mounting point, but the only other mounting location I can think of would be directly above the valve cover; right where the bucket seat is. It would probably get even less air flow there than on the side and I might burn myself on it. I do plan on designing and making air scoops for the radiator to aid with air flow.

If it comes down to it I could cut the bucket part out, fabricate some supporting framework for the seat from angle iron and mount the radiator where the bucket storage area used to be.

#4 - 4-way 1/8" npt female coupling with 5/16" hose barb adapters on the left and right sides.

#5 - short 1/8" npt nipple to a 1/8" npt female to female union to a 1/8" npt bleeder valve. I used the short nipple (tehehe) to give air bubbles a place to get trapped and then pushed out.

#6 - probe for oil temperature gauge.

#7 - check valve.

#8 - 5/16" hose barb adapter to 90 degree 1/8" npt street elbow to transmission "add-a-plug" in valve cover.

#9 - (not pictured) some blue cheese and crackers to munch on, because, well you know... cheese.

My cat says meow, meow, squeak, meow, hiss


Oh and bash - thanks for all the help in the other thread, your advice has been invaluable.