[python] Re: python Digest V11 #67
- From: Tihamer Juhasz <balamber@xxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Tue, 26 Nov 2013 14:50:08 +0200
The second link didn't work either because some emial clients/servers add
the www at the beginning of the link and that screws it.
The link works in this exact form: youtu.be/YQ9KTTJJhLE or even better like
this:
http://www.youtube.com/watch?v=YQ9KTTJJhLE&feature=youtu.be
Very smooth looking trike. Must be a joy riding it.
Cheers, Tiha
On Tue, Nov 26, 2013 at 12:13 PM, Howard Stevens <hstevens94@xxxxxxxxx>wrote:
> That link seems to be a problem...try
> http://youtube/YQ9KTTJJhLE<http://www.youtu.be/YQ9KTTJJhLE>
> Sorry folks Cheers Howard
>
>
> On Tue, Nov 26, 2013 at 8:01 PM, Howard Stevens <hstevens94@xxxxxxxxx>wrote:
>
>> Hullo pythonites,
>> Well I have finally completed my trike and had a very successful road
>> test. This can be seen on http://www.youtu.be/YQ9KTTJJhLE
>> You may recall the discussions about pivot angle with trikes and my
>> decision to go for an angle of 55 degrees. I also put a steering damper on
>> as well ( from a VW beetle). The test has gone very well without any
>> noticeable PSI and very limited wheel flop. It is ok without the damper
>> too, but I like the firm steady feel with it, and it is nice that it holds
>> the front wheel from falling over when parked. To allow my design to fold
>> necessitated that the pivot be in front of the hips and it is about 100mm
>> in front of the line of the hips, but it seems, without any
>> problems. Anyway have a look, and I will be interested in any further
>> comments. Best wishes Howard
>>
>>
>> On Thu, Oct 24, 2013 at 3:07 PM, FreeLists Mailing List Manager <
>> ecartis@xxxxxxxxxxxxx> wrote:
>>
>>> python Digest Wed, 23 Oct 2013 Volume: 11 Issue: 067
>>>
>>> In This Issue:
>>> [python] python on eBay
>>> [python] Re: izzy bike
>>> [python] Re: izzy bike
>>> [python] Re: izzy bike
>>> [python] Re: izzy bike
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Date: Wed, 23 Oct 2013 13:56:51 +0200
>>> From: =?ISO-8859-1?Q?J=FCrgen_Mages?= <jmages@xxxxxx>
>>> Subject: [python] python on eBay
>>>
>>> Forwarding this for Mark:
>>>
>>>
>>> > Hello everyone
>>> > I just thought I would draw your attention to the python I am selling
>>> on
>>> > eBay. It was one of two made by Neil Stanley a few years ago. I
>>> > butchered the smaller of them to fit me and am keeping it, but this one
>>> > remains untouched. It would suit someone very tall. I think Neil is
>>> > around 193 cm, with legs to match.
>>> >
>>> > Here's the eBay link:
>>> >
>>> >
>>> http://www.ebay.co.uk/itm/recumbent-bicycle-/221301006533#ht_386wt_1170=20
>>> >
>>> > Cheers
>>> >
>>> > Mark
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> From: Steffen Risse <big.skangster@xxxxxxxxx>
>>> Date: Wed, 23 Oct 2013 15:02:32 +0200
>>> Subject: [python] Re: izzy bike
>>>
>>> Hi Vi [haɪ̯fɪ <http://de.wikipedia.org/wiki/Liste_der_IPA-Zeichen>] ;o),
>>> but friction isn't a conastant ratio, and the angle the steering bar has
>>> for a certain steering angle will change every time. maybe the steering
>>> bar
>>> is sometimes allready like full conrering, but you're still going
>>> straight.
>>> The clamped pullies prevent such situations as long as they don't brake.
>>> Steffen
>>>
>>>
>>> 2013/10/23 Vi Vuong <vi_vuong@xxxxxxxxx>
>>>
>>> > Hi Steffen,
>>> >
>>> > Friction steering should be similar to the Izzy's pulley design in a
>>> sense
>>> > that input angle is greater output angle due to slippage. However, the
>>> > "ratio" depends on the input force / slippage. It would be cool if
>>> speed
>>> > sensitive steering is achievable with python. Will report back after
>>> more
>>> > experimentation. Here is the handlebar set up I am using,
>>> > http://en.openbike.org/wiki/FP02
>>> >
>>> > Vi
>>> >
>>>
>>>
>>> ------------------------------
>>>
>>> Date: Wed, 23 Oct 2013 15:11:31 +0200
>>> From: =?UTF-8?B?UGV0ZXIgxaB2YW7EjcOhcmVr?= <peter.svancarek@xxxxxxxx>
>>> Subject: [python] Re: izzy bike
>>>
>>> Content-Type: text/plain; charset=UTF-8; format=flowed
>>> Content-Transfer-Encoding: 8bit
>>> What about using pulleys and rope(cable) anchored to pulleys so they
>>> wouldn't rely on friction?
>>>
>>> Dňa 23. 10. 2013 15:02 Steffen Risse wrote / napísal(a):
>>> > Hi Vi [haɪ̯fɪ <http://de.wikipedia.org/wiki/Liste_der_IPA-Zeichen>]
>>> ;o),
>>> > but friction isn't a conastant ratio, and the angle the steering bar
>>> > has for a certain steering angle will change every time. maybe the
>>> > steering bar is sometimes allready like full conrering, but you're
>>> > still going straight. The clamped pullies prevent such situations as
>>> > long as they don't brake.
>>> >
>>> > Steffen
>>> >
>>> >
>>> > 2013/10/23 Vi Vuong <vi_vuong@xxxxxxxxx <mailto:vi_vuong@xxxxxxxxx>>
>>>
>>> > Hi Steffen,
>>> >
>>> > Friction steering should be similar to the Izzy's pulley design in
>>> > a sense that input angle is greater output angle due to slippage.
>>> > However, the "ratio" depends on the input force / slippage. It
>>> > would be cool if speed sensitive steering is achievable with
>>> > python. Will report back after more experimentation. Here is the
>>> > handlebar set up I am using, http://en.openbike.org/wiki/FP02
>>> >
>>> > Vi
>>> >
>>>
>>>
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> From: Steffen Risse <big.skangster@xxxxxxxxx>
>>> Date: Wed, 23 Oct 2013 16:25:44 +0200
>>> Subject: [python] Re: izzy bike
>>>
>>> that's what izzy does
>>>
>>> 2013/10/23 Peter Švančárek <peter.svancarek@xxxxxxxx>
>>>
>>> > What about using pulleys and rope(cable) anchored to pulleys so they
>>> > wouldn't rely on friction?
>>> >
>>> > Dňa 23. 10. 2013 15:02 Steffen Risse wrote / napísal(a):
>>> >
>>> > Hi Vi [haɪ̯fɪ <http://de.wikipedia.org/wiki/Liste_der_IPA-Zeichen>]
>>> ;o),
>>> > but friction isn't a conastant ratio, and the angle the steering bar
>>> has
>>> > for a certain steering angle will change every time. maybe the
>>> steering bar
>>> > is sometimes allready like full conrering, but you're still going
>>> straight.
>>> > The clamped pullies prevent such situations as long as they don't
>>> brake.
>>> >
>>> > Steffen
>>> >
>>> >
>>> > 2013/10/23 Vi Vuong <vi_vuong@xxxxxxxxx>
>>> >
>>> >
>>> > Hi Steffen,
>>> >>
>>> >> Friction steering should be similar to the Izzy's pulley design in a
>>> >> sense that input angle is greater output angle due to slippage.
>>> However,
>>> >> the "ratio" depends on the input force / slippage. It would be cool
>>> if speed
>>> >> sensitive steering is achievable with python. Will report back after
>>> more
>>> >> experimentation. Here is the handlebar set up I am using,
>>> >> http://en.openbike.org/wiki/FP02
>>> >>
>>> >> Vi
>>> >>
>>> >
>>> >
>>>
>>>
>>> ------------------------------
>>>
>>> Date: Wed, 23 Oct 2013 18:24:18 +0300
>>> Subject: [python] Re: izzy bike
>>> From: Tihamer Juhasz <balamber@xxxxxxxxx>
>>>
>>> One more detail: I contacted the creator of the Izzy on FB and asked
>>> about
>>> handling. This is what he told me:
>>> The bike is very easy to ride and manoeuvrable but it takes a few minutes
>>> to get use to it. This is because, just like you've noticed, caused by
>>> the
>>> wire. It's a bit like learing to ride a bike again , once you get the
>>> hang
>>> of it, it's all smooth sailing from there!
>>>
>>> End of quote.
>>>
>>> Learning to ride the Python definitely takes longer than a few minutes.
>>> So
>>> it would be really interesting to try this ride-by-wire approach on a
>>> Python.
>>>
>>> Tiha
>>>
>>>
>>>
>>> On Wed, Oct 23, 2013 at 5:25 PM, Steffen Risse <big.skangster@xxxxxxxxx
>>> >wrote:
>>>
>>> > that's what izzy does
>>> >
>>> >
>>> > 2013/10/23 Peter Švančárek <peter.svancarek@xxxxxxxx>
>>> >
>>> >> What about using pulleys and rope(cable) anchored to pulleys so they
>>> >> wouldn't rely on friction?
>>> >>
>>> >> Dňa 23. 10. 2013 15:02 Steffen Risse wrote / napísal(a):
>>> >>
>>> >> Hi Vi [haɪ̯fɪ <http://de.wikipedia.org/wiki/Liste_der_IPA-Zeichen>]
>>> ;o),
>>> >> but friction isn't a conastant ratio, and the angle the steering bar
>>> has
>>> >> for a certain steering angle will change every time. maybe the
>>> steering bar
>>> >> is sometimes allready like full conrering, but you're still going
>>> straight.
>>> >> The clamped pullies prevent such situations as long as they don't
>>> brake.
>>> >>
>>> >> Steffen
>>> >>
>>> >>
>>> >> 2013/10/23 Vi Vuong <vi_vuong@xxxxxxxxx>
>>> >>
>>> >>
>>> >> Hi Steffen,
>>> >>>
>>> >>> Friction steering should be similar to the Izzy's pulley design in a
>>> >>> sense that input angle is greater output angle due to slippage.
>>> However,
>>> >>> the "ratio" depends on the input force / slippage. It would be cool
>>> if speed
>>> >>> sensitive steering is achievable with python. Will report back
>>> after more
>>> >>> experimentation. Here is the handlebar set up I am using,
>>> >>> http://en.openbike.org/wiki/FP02
>>> >>>
>>> >>> Vi
>>> >>>
>>> >>
>>> >>
>>> >
>>>
>>>
>>> ------------------------------
>>>
>>> End of python Digest V11 #67
>>> ****************************
>>>
>>>
>>
>
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