Gerald <bepb@xxxxxx> hat am 24. Juni 2012 um 08:44 geschrieben: > Hi Dirk, > You are right, it is the frontpart off the pivot which is compressed. Seems I > was somehow confused. Maybe I better not write about bike geomety after > midnight. > > Gerald > > -----Ursprüngliche Nachricht----- > Von: "dirk@xxxxxxxxxx" <dirk@xxxxxxxxxx> > An: python@xxxxxxxxxxxxx > Gesendet: Donnerstag, 21. Juni 2012 16:05:31 GMT+00:00 > Betreff: [python] Re: AW: AW: Re: Twist-Python > > Hi Gerald, > X-archive-position: 5090 > X-ecartis-version: Ecartis v1.0.0 > Sender: python-bounce@xxxxxxxxxxxxx > Errors-to: python-bounce@xxxxxxxxxxxxx > X-original-sender: dirk@xxxxxxxxxx > Precedence: normal > Reply-To: python@xxxxxxxxxxxxx > List-help: <mailto:ecartis@xxxxxxxxxxxxx?Subject=help> > List-unsubscribe: <python-request@xxxxxxxxxxxxx?Subject=unsubscribe> > List-software: Ecartis version 1.0.0 > List-Id: python <python.freelists.org> > X-List-ID: python <python.freelists.org> > List-subscribe: <python-request@xxxxxxxxxxxxx?Subject=subscribe> > List-owner: <mailto:jmages@xxxxxx> > List-post: <mailto:python@xxxxxxxxxxxxx> > List-archive: <//www.freelists.org/archives/python> > X-list: python > > i actually think, it should be the front part, that recieves pressure while > the > rod in the middle is being pulled out - at least if the rider is sitting. > Given a very high pedal position, high pedalling force with low rider weight > and > the rider leaning with the upper part of his back against the seat could > reverse the situation in theory, but then, the inverse pendulum effect should > be > reversed as well, since you are pulling up the bottom bracket. > > regards, > DirkS > > > Gerald <bepb@xxxxxx> hat am 20. Juni 2012 um 00:23 geschrieben: > > > Hi, > > sorry, I think I have to correct myself. Obviously, its rather the rear part > > off the disk that is beeing pressed together by the weight off the rider. > > > > Gerald > > > > -----Ursprüngliche Nachricht----- > > Von: Gerald <bepb@xxxxxx> > > An: python@xxxxxxxxxxxxx > > Gesendet: Dienstag, 19. Juni 2012 20:40:17 GMT+00:00 > > Betreff: [python] AW: Re: Twist-Python > > > > Hi, > > first off all, I too, like the flat construction off the pivot. This will > > allow for a even lower seat position. > > If I am not much misstaken, only the frontend off the disks will be pressed > > together due to the load on the pivot. > > One or two coaster blocks - I hope the term is right - on or in stead off > > one > > off the disks might even improve the pivot. > > > > BR Gerald > > > > -----Ursprüngliche Nachricht----- > > Von: "dirk@xxxxxxxxxx" <dirk@xxxxxxxxxx> > > An: python@xxxxxxxxxxxxx > > Gesendet: Montag, 18. Juni 2012 12:22:28 GMT+00:00 > > Betreff: [python] Re: Twist-Python > > > > Hi, > > > > i suspect a lot of friction/wear, especially on the outer end of the discs, > > since they travel a lot when turning. However, this might turn out as a > > wanted > > damping effect, potentially reducing psi... > > > > I think, there are bearings available, that have a similar diameter to these > > discs, but aren't prone to friction. > > > > greetings, > > DirkS > > > > > > "Jürgen Mages" <jmages@xxxxxx> hat am 16. Juni 2012 um 07:53 geschrieben: > > > > > I also have thought of such seat swivel bases some years ago, but > > > abandoned the idea: The central bolt seemed too weak and I was too lazy > > > to enforce it. The ukranian version might last without too much wear. > > > Time will proof if it works ... anyway it's a very smart idea. > > > > > > Jürgen. > > > > > > On 16.06.2012 05:26, Vi Vuong wrote: > > > > Having to use head tube for pivot exclusively so far, I can > > > > appreciate the compactness of the disk. Pivot placement seems > > > > conveniently good for minimum PSI. I am wondering if a seat swivel > > > > base can be used as a disk pivot, relatively inexpensive but maybe a > > > > bit heavier... > > > > https://www.google.com/search?q=Boat+Seat+Swivel&tbm=isch > > > > > > > > Vi > > > > > > > > > > > > > > > > > > > >> ________________________________ From: Jürgen Mages <jmages@xxxxxx> > > > >> To: Python Mailinglist <python@xxxxxxxxxxxxx> Sent: Friday, June > > > >> 15, 2012 5:41 PM Subject: [python] Twist-Python > > > >> > > > >> Hello folks, > > > >> > > > >> some inventive stuff from Ukraine: > > > >> > > > >> http://hpv.com.ua/2012/04/twist-%D1%81-%D0%BF%D0%BE%D0%B4%D1%80%D0%BE%D0%B1%D0%BD%D0%BE%D1%81%D1%82%D1%8F%D0%BC%D0%B8-2/ > > > >> http://hpv.com.ua/2012/04/twist-python/ > > > >> > > > >> that disk-pivot is definitely new to me! > > > >> > > > >> Cheers, Jürgen. > > > > > > ============================================================ > > > > > > This is the Python Mailinglist > > > > > > //www.freelists.org/list/python > > > > > > Listmaster: Jurgen Mages jmages@xxxxxx > > > > > > To unsubscribe send an empty mail to > > > python-request@xxxxxxxxxxxxx > > > with 'unsubscribe' in the subject field. > > > > > > ============================================================ > > > > > > > http://dirk.steuwer.de > > ============================================================ > > > > This is the Python Mailinglist > > > > //www.freelists.org/list/python > > > > Listmaster: Jurgen Mages jmages@xxxxxx > > > > To unsubscribe send an empty mail to > > python-request@xxxxxxxxxxxxx > > with 'unsubscribe' in the subject field. > > > > ============================================================ > > http://dirk.steuwer.de > ============================================================ > > This is the Python Mailinglist > > //www.freelists.org/list/python > > Listmaster: Jurgen Mages jmages@xxxxxx > > To unsubscribe send an empty mail to > python-request@xxxxxxxxxxxxx > with 'unsubscribe' in the subject field. > > ============================================================ http://dirk.steuwer.de ============================================================ This is the Python Mailinglist //www.freelists.org/list/python Listmaster: Jurgen Mages jmages@xxxxxx To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field. ============================================================