Search found 1124 matches

by T1 Terry
Mon, 17 Oct 2011, 03:00
Forum: The Lounge
Topic: Is there a beginners section ?
Replies: 7
Views: 1628

Is there a beginners section ?

Umm... Glenn, if you have a 1957 beetle still in registerable condition, sell it. the money you get from tht will buy you another project car, the motor, controller....... A '57 beetle in goods nick is worth good money.

T1 Terry
by T1 Terry
Wed, 12 Oct 2011, 23:51
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

$240 for that :shock: I hope the pump doesn't run continuous, there is no provision for oil cooling, this is usually done through a lingh of steel pipe run across an area where there is air flow. Without it the oil will over heat and burn destroying the pump and the power steering rack seals. The no...
by T1 Terry
Fri, 07 Oct 2011, 23:20
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

Nice bracket, I'm pleased to see others work with "adjustment slots" (the 2 elongated holes) The tapered section in the fore ground of the first picture is a neat work around but I must say, the second picture does miss not have something topical in the background, possibly the can of beans with the...
by T1 Terry
Tue, 04 Oct 2011, 22:12
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

Actually, looking closer I'd say the brass fitting for the oil return is BSPT and the others are BSPP. I would be very surprised if it's any of the metric threads, they are usually proprietary to the heavy equipment manufacturing mobs. I think CAT even have one of their own.

T1 Terry
by T1 Terry
Tue, 04 Oct 2011, 21:49
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

Now I've just learned from EVWorks what the hydraulic port threads are. These three sets of threads are all in the same block of aluminium so presumably by the same manufacturer. Can you guess what type of thread the ports are? BSPP or BSPT? These are the most common thread types when it comes to h...
by T1 Terry
Mon, 03 Oct 2011, 22:07
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

There are a lot of American's who hate this as much as I do. For an entertaining rant, visit this page and scroll down about two screenfulls to item (i) "Metric system (SI)". http://euler9.tripod.com/bolt-database/22.html Not what you expect to find in an otherwise technical document! Quite a laugh,...
by T1 Terry
Mon, 03 Oct 2011, 21:18
Forum: Scooters, mopeds and electric toys
Topic: On the road data - Goldenmotor 500w
Replies: 4
Views: 1983

On the road data - Goldenmotor 500w

Thanks for that, the loss of road feel would be a major issue with the wife I think, might need to look at the small assist motor that drives off a double sprocket and sprag clutch on the back wheel I think. The fact that the hub motor drags all the time is also a concern, it would make getting home...
by T1 Terry
Mon, 03 Oct 2011, 16:33
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

You could always helicoil the holes with 8 mm 1.25 pitch thread to be sure to be sure :lol: Loctite on the 8 mmm bolts will make up for any possible difference between 5/16UNC and 8mm 1.25 thread. The tricky part of thread tap/drill size is the thread pitch, metric didn't really help, is it 1.00 pit...
by T1 Terry
Mon, 03 Oct 2011, 15:18
Forum: Scooters, mopeds and electric toys
Topic: On the road data - Goldenmotor 500w
Replies: 4
Views: 1983

On the road data - Goldenmotor 500w

Was your’s a front or rear hub motor? What effect did the extra weight in the hub have on the handling of the bike? An average speed for 36km of roughly 31km/h is way beyond the average person could maintain pedalling alone, you say you had the shakes when you finished, was that because of the hill ...
by T1 Terry
Sun, 02 Oct 2011, 19:51
Forum: Technical and conversion discussion
Topic: Gearbox to motor hub - USD40
Replies: 4
Views: 1239

Gearbox to motor hub - USD40

These are very common in industrial drives and as long as the alignment is correct they last for some time. An O ring chain will reduce the noise and last longest while creating th least mess but a standard chain boiled in grease and left to cool will work fine with a spray guard fitted. the speed o...
by T1 Terry
Sun, 02 Oct 2011, 19:41
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

You could go one step further and add a hydraulic filter to the return line. This would stop rubbish build up in the tank and stop the oil foaming problem. Alternately a longer hose or a 90deg fitting will redirect the oil to the bottom of the tank. The encoder problem, here's one out of left field,...
by T1 Terry
Sat, 01 Oct 2011, 20:56
Forum: Members Machines
Topic: Weber and Coulomb's MX-5
Replies: 1698
Views: 384836

Weber and Coulomb's MX-5

Congratulations to all involved, that is lookin very neat under the bonnet. Can't get over the size of that motor, it's near the size of block of the ICE that came out of there. I wish I had your faith in the mounting method for the encoder, my industrial and plant equipment background would have fo...
by T1 Terry
Fri, 23 Sep 2011, 22:21
Forum: EV Motoring
Topic: Only in America
Replies: 4
Views: 1090

Only in America

Not enough angle for Victoria either.... Park on a hill, gee do we have to do all the thinking for you http://forums.aeva.asn.au/smileys/smiley36.gif Mine will be similar, but 1.2kw of solar on the roof, an 11mtr bus conversion does have some benefits http://forums.aeva.asn.au/smileys/smiley2.gif T...
by T1 Terry
Tue, 20 Sep 2011, 12:55
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 441
Views: 68882

Low cost BMS

I top balance mine is a sense but don't use any method of power wasting. The difference between 3.85v and 3.4v in a cell doesn't amount to very much energy storage Hi Terry, I think we all agree with that (assuming the charge rate we're talking about here is something like 0.1C to 0.2C). so as long...
by T1 Terry
Sun, 18 Sep 2011, 00:31
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 441
Views: 68882

Low cost BMS

I top balance mine is a sense but don't use any method of power wasting. The difference between 3.85v and 3.4v in a cell doesn't amount to very much energy storage so as long as I limit my discharge to 80% DoD and switch to float charging when a cell reaches 3.85v, the float charge voltage being the...
by T1 Terry
Wed, 14 Sep 2011, 20:36
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 441
Views: 68882

Low cost BMS

I am wondering if displaying the voltage to the nearest 10 mV might be quite sufficient? Then I could just have 3.33 and 3.32. Just how fussy are these Li cells? The specs state a max charge voltage of 3.60V and doesn't that imply that +- 5 mV is good enough? I charge my cells to 3.45v this is to g...
by T1 Terry
Wed, 14 Sep 2011, 17:00
Forum: Technical and conversion discussion
Topic: Convert 1975 Afron Cherrypicker?
Replies: 143
Views: 24164

Convert 1975 Afron Cherrypicker?

The crush on the bearing cups can be measured using 3 strips of "Plastigauge" placed an even distance apart across the bearing cup, bolt it together, pull it part and measure the 3 bits of plastigauge, the clearance is the average of the three pieces. The trick is you need to put as small a feeler ...
by T1 Terry
Tue, 13 Sep 2011, 23:27
Forum: Technical and conversion discussion
Topic: Convert 1975 Afron Cherrypicker?
Replies: 143
Views: 24164

Convert 1975 Afron Cherrypicker?

when you pulled it appart can you remember what shims went where? These shims not only apply preload they are also crucial for component placement as advese effects has already stated. If you can't remember what went where you will need to track down a workshop manual of find out who the gearbox man...
by T1 Terry
Fri, 09 Sep 2011, 14:46
Forum: General EV Discussion
Topic: Raising the subject of range extending trailers
Replies: 67
Views: 10266

Raising the subject of range extending trailers

I downloaded this report on range extender trailers a while back & only just found it again, its an interesting breakdown on the subject. Some of it is a little over my head but still an interesting read. Low_Emiss_Range_Ext_149.pdf Did this unit ever hit the market? A lot of development work went ...
by T1 Terry
Tue, 06 Sep 2011, 14:27
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 441
Views: 68882

Low cost BMS

Haven't been on here for a while, but I have been working on a BMS to replace my original 8-cell module one that proved to be awkward and clumsy to install, although it does work OK. This one uses a single module per cell attached directly to the terminals. It has "daisy-chain" comms, opto-coupled ...
by T1 Terry
Sun, 21 Aug 2011, 15:22
Forum: AEVA WA Branch
Topic: Come see Glen off at Parliament House Sunday 11 am
Replies: 4
Views: 2137

Come see Glen off at Parliament House Sunday 11 am

I put a link up on the CMCA and Caravanner forums so they can keep an eye out for him and give him a cheer as he passes through. Should be interestig to watch, is there a link to the vehicle build?

T1 Terry
by T1 Terry
Tue, 09 Aug 2011, 10:44
Forum: Technical and conversion discussion
Topic: Convert 1975 Afron Cherrypicker?
Replies: 143
Views: 24164

Convert 1975 Afron Cherrypicker?

There is a unit called an RVD (Residual Current Device) now on the market that works in conjunction with the RCD to trip the breaker in a short to ground of either line in a floating power supply. I bought mine from Ian at http://www.powerstream.com.au/ because motorhomes have a real problem with t...
by T1 Terry
Mon, 08 Aug 2011, 16:00
Forum: Technical and conversion discussion
Topic: Convert 1975 Afron Cherrypicker?
Replies: 143
Views: 24164

Convert 1975 Afron Cherrypicker?

I purchased one these 48v 4kw units via evilbay for roughly $1,000 delivered http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=130543331850. The contact man is Eric Hsiao and a very helpful person to deal with, he arranged for the voltage points to be reset to suit a lithium battery pack in 2 di...
by T1 Terry
Mon, 08 Aug 2011, 15:02
Forum: Technical and conversion discussion
Topic: Convert 1975 Afron Cherrypicker?
Replies: 143
Views: 24164

Convert 1975 Afron Cherrypicker?

Just get a cheapie inverter rated close to the max input of the chainsaw, this their most efficient operating range. Keep the solar seperate, combination units mean all is lost while one failed bit is repaired. Was was the problem with the battery operated unit? Was it the chainsaw itself? maybe one...
by T1 Terry
Mon, 08 Aug 2011, 14:49
Forum: General EV Discussion
Topic: Engineers in NSW
Replies: 4
Views: 1343

Engineers in NSW

Try contacting the original engineer, there is a good chance he also does NSW engineering paper work. It will most likely involve more $$ but he will know the vehicle and hopefully trust the judgement of the bloke that engineered it last time :lol:

T1 Terry