- TheThinkTank - lists.bikecollectives.org

Free knowledge
by christopher＠holisticcycles.com 04 Feb '19

04 Feb '19

All the points you raise have answers in mechanical engineering and bicycle mechanics. To pick one: the compression of a closed quick release does change the adjustment of hub bearings, easily demonstrated. Various techniques exist to correct the hub bearings adjustment for this. Barnett publishes a technique, a bit fussy, but it works. The technique he demonstrated to me was flawed. I show him the flaw in logic and he dismissed it. He put pressure on the end of an axle on one side of a hub and pressure on the lock nut on the other side of the hub. There is never any pressure on the end of a skewered axle. The clamping force is only on the lock nuts against the dropout surfaces. His test had two variables instead of one. Does the axle compress under quick release loads or do the threads flex. One test will not answer two variables. Two test are needed to test two variables. Yet only one test is valid. Since a QR can never press against the end of an axle and still have clamping force on a lock nut against the dropout, pressing against the end of the axle test is invalid. John' s testing wanted to find a specific amount that a hub could be adjusted from the standard bench adjustment to the on the bike correction for quick release forces. He came to realize that the variables in axle materials and quick release materials and construction were to great for a unified answer. I solved for his issues and his beliefs dismissed my solution. I demonstrated a perfect adjustment for the added load of a quick release in less than 30 seconds. Once I did six adjustment in 10 seconds. My special tools cost $6 from a frame builder. Special tools do exist, but unnecessary. Most mechanics learn in school or from someone like me, People are asking me for free instruction, is your knowledge free? if not why are you advertising here also? and most develop their preferred method. Chains don't stretch. At 2000 pound of force chains do stretch, True: on a bike they only wear. Cables do. At 550 pounds of force derailleur cables stretch, but the plastic shift lever mount will fail at 200 pounds of force, at 800 pounds of force brake cables stretch. sadly a rim side wall brake surface will start to fail at 160 pounds of force. Numbers don't lie and are verifiable. (Very different structures.) Spokes remain elastic. Spoke elbows deform from the original 90 degrees to the best pull angle, effectively making spokes longer once. On aluminum hubs the elbow indents the hub flange hole making the spoke effectively longer once. Neither of these changes the elastic properties of the spoke, but they do make the spoke effectively longer once and drop the tension of the wheel, allowing for greater tension ranges in spokes, creating early fatigue and spoke failure. Also reducing the efficiency of the wheel to accelerate as looser spokes need to be tensioned by the force from the chain before they move the cyclist forward, and the wheel has more side to side movement with looser spokes making control and braking less than optimal. May I suggest that these complete thoughts are not currently put together cohesively by engineering books which I have intensely studied, or bicycle best practices knowledge bases. or by you. May I suggest familiarizing yourself with current best practice (rather than the noise that gets written on the web). I suggest Sharp for the basic mechanical engineering My experiments with the wheel in both practice and with finite element analysis and computational fluid dynamic program ANAYS. have shown insight intto the wheel and how to do wheel work 20 faster for better result. and Barnett for current mechanic best practice. As a BBI certified master tech, I can point out many flaws to Barnett's best practices. From making mechanics less profitable with slow procedures that are not valid in their testing. To just plain bad science understanding. Get back to me if you have questions after having thoroughly understood those. I am back, Now are you ready to learn? or do you have any ideas of your own that are brilliant. I am all ears On Sun, Oct 16, 2016, 1:24 PM <christopher(a)holisticcycles.com> wrote: Hi David, What are you trying to build? I am not trying to builds I am trying to understand what has been built to improve efficiency of mechanics by up to 40 times current speed. Helping mechanics earn a living wage. Not a lot of CFD in the bike world. Do you know this as fact or a belief that you hold strongly? And after over a hundred years of engineering, not a lot of need for FEA. In the 1880's to 1890's there was amazing engineering, some material sciences in the 1980's improved friction, ending of the cold war brought advanced materials in the 80's and 90's Sadly as a student of the root causes of problems I have found the engineering in most bicycle systems is lost and strong held beliefs are the replacement. A couple of examples: A chain has a pull strength of 2000 pounds before it stretches, If you wish to stretch a chain put a car on your back and stand on one pedal. What is the root of chain lengthening, What is the relationship between side to side flex of a chain and shifting quality? Do all new chains that measure the same length have the same side flex? Is there a relationship between chain length and flex. A spoke is made of a magical metal that stretches once and then becomes a harder metal and never stretches again. A spoke can be tightened until it will pull the nipple through the rim because the rim is not as strong as pull force that can be applied by the spoke. So how do rims stretch spokes to become looser in tension during the first 30 days of riding? Derailleur cables are anchored by a threaded fastener on one end and on the other end sits in a plastic seat in the shift lever. The derailleur cable has a pull strength of 500 pounds of pull before it will stretch, the plastic seat will fail before the cable will. How do cables stretch one time then never stretch again when pulled by a weaker plastic component? Does a quick release lever change the adjustment of a hub? How do you isolate and test your theory? How do you adjust the hub precisely for a combination of a specific axle (mild steel, hardened steel, Titanium, Aluminum, ) and a specific Quick Release material (Steel, Aluminum, Titanium, with or with out plastic components )? How do you precisely adjust a hub for QR forces in less than 20 seconds? If engineering has been done, then it should be easy to answer all these question by looking in books, or on line, or from schools. Which acts like a fluid on the bicycle? hydraulic brake fluid? a wheel rim? or a chain? A little hint, Brake fluid when contain in a system acts as a solid to transfer forces. Brake fluid outside of a system acts like a fluid. If you would like to communicate on how CFD with FEA can change the world of cycling I would love to talk, If you believe engineers created cables that stretch once, spokes that stretch once, chains that stretch with human load of less than 2000 pounds, well I will not change your strong belief system. Christopher Wallace 773 490 0683 Good morning, Sorry, no. I once did some programming for FEA and CNC but ages ago, and my IT friends wrangle server farms, databases, and state IT departments. Take a look at Monster. Also post a query on one of the CMU boards or Pitt Craigslist. What are you trying to build? Not a lot of CFD in the bike world. And after over a hundred years of engineering, not a lot of need for FEA. David On Sun, Oct 16, 2016, 11:14 AM <christopher(a)holisticcycles.com> wrote: Do you know anyone that is fluent in Ansys? CFD FEA? or know where I could look for a person in the field? Christopher Wallace Holistic Cycles 773 490 0683 Oak Park, IL. 60304 -------- Original Message -------- Subject: Re: [TheThinkTank] CiviCRM From: David Zundel <davidzundel(a)gmail.com> Date: Sat, October 15, 2016 6:38 pm To: Jonathan Morrison <jonathan(a)bicyclecollective.org>, The Think Tank <thethinktank(a)lists.bikecollectives.org> CiviCRM goes on a server (vps recommended and affordable) then accessed by a web page, fairly easy. Or you buy Civi hosting, but that defeats some of the purpose of using Civi. Civi has considerable power and ability, can connect with ERP, etc but not for IT novice. Easy to install, configure, and maintain if you have experience and comfort with Linux servers, if not, not. You can certainly hire the Linux talent in SLC, but dependence on outside IT service has inconveniences. Email me directly if you want to get into details on Civi. David http://openwest.us On Sat, Oct 15, 2016, 8:20 PM Jonathan Morrison <jonathan(a)bicyclecollective.org> wrote: What staff resources does it require? On Sat, Oct 15, 2016, 7:19 PM jack <jack(a)bikewalkwichita.org> wrote: We use Salesforce / Wordpress / Mailchimp and have been pleased with what all we can do, for free. -------- Original message -------- From: David Zundel Date:10/15/2016 7:33 PM (GMT-06:00) To: The Think Tank Subject: Re: [TheThinkTank] CiviCRM CiviCRM recommended David On Sat, Oct 15, 2016, 6:13 PM Jonathan Morrison <jonathan(a)bicyclecollective.org> wrote: Has anyone been using (https://civicrm.org/) or would they recommend a different software package? -Jonathan ____________________________________ The ThinkTank mailing List <a href="http://lists.bikecollectives.org/options.cgi/thethinktank-bikecollectives.o…">Unsubscribe from this list</a> ____________________________________ The ThinkTank mailing List <a href="http://lists.bikecollectives.org/options.cgi/thethinktank-bikecollectives.o…">Unsubscribe from this list</a> ____________________________________ The ThinkTank mailing List Unsubscribe from this list

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Re: [TheThinkTank] Thethinktank Digest, Vol 148, Issue 16
by sharon earnhardt 01 Feb '19

01 Feb '19

PLEASE PLEASE PLEASE UNSUBSCRIBE ME!!!! I've asked nicely several times. I'm reporting the next post as spam. Sharon Earnhardt captainkellia(a)gmail.com On Fri, Feb 1, 2019 at 3:42 AM < thethinktank-request(a)lists.bikecollectives.org> wrote: > Send Thethinktank mailing list submissions to > thethinktank(a)lists.bikecollectives.org > > To subscribe or unsubscribe via the World Wide Web, visit > > http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.… > > or, via email, send a message with subject or body 'help' to > thethinktank-request(a)lists.bikecollectives.org > > You can reach the person managing the list at > thethinktank-owner(a)lists.bikecollectives.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Thethinktank digest..." > Today's Topics: > > 1. Your opinion please.... (Ellen Willis-Conger) > 2. Ogden Bicycle Collective is Hiring a Volunteer Coordinator > (Danielle Stiff) > > > > ---------- Forwarded message ---------- > From: Ellen Willis-Conger <ellen(a)sbbike.org> > To: thethinktank(a)lists.bikecollectives.org > Cc: > Bcc: > Date: Wed, 30 Jan 2019 16:23:13 -0800 > Subject: [TheThinkTank] Your opinion please.... > Santa Barbara Bicycle Coalition has 3 different sites/shops. > > We are going to upgrade our POS system to work better with our Quickbooks > online in order to make life easier and more accurate for all! > > Do you have experience with how the following POS systems interface with > Quickbooks? Please share your opinion and experience with support !! > > 1) Primaseller > 2) Shopkeep > 3) Lightspeed > > > Thank you!! > Ellen > -- > Ellen Willis-Conger > *Associate Director* > Santa Barbara Bicycle Coalition > p: 805.845.8955 > w: sbbike.org e: ellen(a)sbbike.org > <https://www.facebook.com/sbbikes/> > <https://www.instagram.com/sbbike.s/> > > > > ---------- Forwarded message ---------- > From: Danielle Stiff <danielle(a)bicyclecollective.org> > To: The Think Tank <thethinktank(a)lists.bikecollectives.org> > Cc: > Bcc: > Date: Wed, 30 Jan 2019 17:38:39 -0700 > Subject: [TheThinkTank] Ogden Bicycle Collective is Hiring a Volunteer > Coordinator > Hi all, > > Our Volunteer Coordinator is off to grad school, so we're hiring a new > one! Here's a link > <https://bicyclecollective.org/ogden-news/item/784-obc-is-hiring-a-volunteer…> > to the job posting and on our website! > > Thanks! > > -- > Danielle Stiff > Director > Ogden Bicycle Collective > 936 28th Street > Ogden, UT 84403 > 801-997-0336 > _______________________________________________ > Thethinktank mailing list > Thethinktank(a)lists.bikecollectives.org > > http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.… >

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Ogden Bicycle Collective is Hiring a Volunteer Coordinator
by Danielle Stiff 30 Jan '19

30 Jan '19

Hi all, Our Volunteer Coordinator is off to grad school, so we're hiring a new one! Here's a link <https://bicyclecollective.org/ogden-news/item/784-obc-is-hiring-a-volunteer…> to the job posting and on our website! Thanks! -- Danielle Stiff Director Ogden Bicycle Collective 936 28th Street Ogden, UT 84403 801-997-0336

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Bike wash
by Jennifer Shriver 28 Jan '19

28 Jan '19

Community Cycles is moving to a new permanent space (hooray!!) and we are updating a few of our processes along the way, including our bike wash. Has anyone looked into this issue? Concerned about 2 things: 1. Conserving water 2. Not putting grease and contaminants into the waste water Interested to hear ANY experience or thoughts y'all have. Thanks so much. Wishing you a beautiful, bicycle-filled day, Jennifer Marie Shriver Development Director 303-641-2749 w <http://www.communitycycles.org>ww.communitycycles.org <http://www.communitycycles.org>

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Re: [TheThinkTank] Thethinktank Digest, Vol 148, Issue 14
by Lawrence Mohammed 27 Jan '19

27 Jan '19

Great concept and strategy Bob, congrats! Warmest regards, *Lawrence Mohammed* Director & Head Mechanic Pro Bike Service C.I.C. *+44 (0)77 222 58587* *probikeservice.co.uk <https://probikeservice.co.uk>* *facebook.com/probikeservice <https://www.facebook.com/professionalbikeservice>* /[Location, NOT delivery address] Pro Bike Service C.I.C. Multi-Storey Car Park Lesney Avenue Olympic Park London E20 3BS / On 26/01/2019 21:04, thethinktank-request(a)lists.bikecollectives.org wrote: > Send Thethinktank mailing list submissions to > thethinktank(a)lists.bikecollectives.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.… > > or, via email, send a message with subject or body 'help' to > thethinktank-request(a)lists.bikecollectives.org > > You can reach the person managing the list at > thethinktank-owner(a)lists.bikecollectives.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Thethinktank digest..." > > Today's Topics: > > 1. Re: capital campaign in missoula, results (Judith Feist) > 2. capital campaign in missoula, results (mist(a)strans.org) > > _______________________________________________ > Thethinktank mailing list > Thethinktank(a)lists.bikecollectives.org > http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.…

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capital campaign in missoula, results
by mist＠strans.org 27 Jan '19

27 Jan '19

Hi all, If any group is thinking of taking on a big capital campaign to buy their building and property, I'd be happy to talk about our experience here in Missoula over the last few years. The nutshell: our 4,000 sq ft community shop was for sale as part of a larger 2 acre property with a 28,000 sq ft building (lots of additions, annexes, offices, warehouse, etc). We went for it and succeeded in buying the whole thing, for 1.1 million dollars. It's in the heart of Missoula, on the trail system with great vistas to the mountains. We raised $200,000 in cash donations in 9 months, secured a $100,000 county loan (4% over 20 years) and had a local woman loan us the balance of 900k. We pay her $6,200/mo as the mortgage (6% over 25 years). A key component: we have secured enough renters to bring in $7,600/mo. That amount covers the local loan, the county loan, insurance and property tax (we gained tax exempt status on 85% of the property). We have like minded renters, from a mushroom grower to t-shirt shop to non profits renting the offices, a clay studio and so on. It has been a challenge, yet we feel very secure. We are growing bike programs, a venue space and we will likely take on the other spaces for more programs as we pay down the loan notes. The arrangement with the local person was a 'contract for deed', which gives us all the rights and responsibilities as property owner. Send me an email if you'd like to talk more. I do think this is a good model: buy a piece of property and rent out enough to cover the bulk of costs. -Bob Giordano, Free Cycles Missoula

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fundraising inquiry
by Judith Feist 25 Jan '19

25 Jan '19

Good Morning (almost afternoon), all! I have a question for any folks out there whose collective/workshop does large fundraisers/events where participants are asked to register either themselves or teams. We have been using crowdrise and had a number of complications with it this year. Are there any fundraising websites or apps out there that you would suggest? Just kinda getting things organized for next year... Thank you in advance. Greatly appreciated. -- Judith C Feist Co Director, the Hub at Back Alley *"*Radical simply means 'grasping things at the root'"- Angela Davis "A woman without a man is like a fish without a bicycle." -Gloria Steinem I think [the bicycle] has done more to emancipate women than anything else in the world...It gives a woman a feeling of freedom and self-reliance.~Susan B. Anthony

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Re. Fundraising Inquiry
by Geoffrey Smart 24 Jan '19

24 Jan '19

Try booking is popular in Australia for fundraisers and I know several organisations that have used it successfully for fundraisers. Works well but there is a fee to use. https://www.trybooking.com/ Regards Geoff Smart Back2Bikes Port Melbourne -- Sent from Gmail Mobile

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Boise Bicycle Project is hiring a Youth Programs Coordinator
by Emily Summerhays 24 Jan '19

24 Jan '19

Beautiful Boise is currently one of the most desirable places in the country to live; and our vibrant bike culture is stretching and growing! We are hiring a Youth Programs Coordinator. Applicants with professional bike mechanics experience and work experience with youth will have priority. Read the job description and requirements below or navigate here: https://www.boisebicycleproject.org/youth-coordinator *Our Mission* Boise Bicycle Project (BBP) is a community-oriented cooperative that promotes the personal, social and environmental benefits of bicycling. We function as a bicycle recycling center as well as an educational workspace in a diverse and non-threatening atmosphere. Through education and access to inexpensive bicycles we strive to build a stronger bicycling community. *We Believe:* Boise has the potential to become the "Bicycling Capital of America." We envision a community where everyone, regardless of income, can enjoy all of the empowering benefits of bicycling. We are doing our darnedest to help Boise reach that potential every day. *Our Youth Program:* The Boise Bicycle Project donates 500-700 bicycles to opportunity-youth every year. In 2015, BBP launched a new Youth Path of Opportunity Program (Y-POP) to make sure all youth ages 4-18 have the opportunity to enjoy all of the benefits a bicycle can provide. This program makes bicycles, bicycle repair, and bicycle safety education available to youth at no cost. *The Youth Programs Coordinator Position:* BBP is hiring a new Youth Programs Coordinator to maintain, grow, and develop the Y-POP program. Our dream candidate is someone who will engage and inspire youth to reach new levels of opportunity in the community and at BBP through bicycling. Above all else, the Youth Programs Coordinator must have a passion for teaching youth. Next comes a passion for the empowering benefits of bicycling. An effective Youth Programs Coordinator will create rewarding and purposeful opportunities for the youth to take part in BBP’s Y-POP program, while working with the rest of BBP’s staff to serve its mission. *Qualifications* - Strong Interpersonal skills, with the ability to work/teach a diverse youth population - Proficient bicycle mechanical skills are a definite plus, but not required - Bachelors Degree or higher, or Specialized Education/Vocational Certificate - Teaching experience - Strong verbal and written communication skills - Proven ability to initiate effective outside the box ideas/programs - Must be able to thrive in a team centered environment - Passion for bicycles as a tool for transportation and empowerment - Passion for and understanding of underserved populations *Job Duties and Responsibilities* *Youth Development* - Maintain and increase fulfilling opportunities for BBP’s Y-POP programs - Recruit and create opportunities for youth of all backgrounds - Provide clear and consistent opportunities for youth to grow their skills - Prepare jobs and tasks for daily youth activities - Develop innovative and sustainable training tactics to engage and educate youth *Program Enhancement* - Work with the Executive Director, Operations Manager, Lead Mechanic, Volunteer Coordinator, and the rest of BBP’s staff to provide valuable learning opportunities that enhance BBP’s other services - Direct BBP’s Youth Work-Trade Program (develop beneficial and educational tasks for work traders) - Establish a new Youth Earn-a-Bike program that’s inclusive of all youth (goal of at least 25 participants a year) - Help Facilitate annual Christmas Kids Bike Giveaway and monthly Kid B.A.S.H. safety classes - Schedule all youth activity programs and events *Outreach and Reporting* - Maintain a record keeping program and youth resource contact list - Create and distribute effective and educational materials to program participants - Complete Y-POP reports for The BBP Experience newsletter - Submit an annual Y-POP report covering total amounts of youth activities, hours and attendance, review of programs, and plans for future development. - Develop and maintain relationships with other youth organizations within the area. *Compensation* $12 - $14 salaried, based on a 5 day 35-40 hour workweek. Benefits include Health Insurance, Retirement Package, Commuter Support Program, Paid Vacation and Sick Leave *How to Apply* *Email your resume, cover letter (in your cover letter, please address how you identify with BBP’s mission statement), and three work related references with contact info to **emily(a)boisebicycleproject.org* <emily(a)boisebicycleproject.org>*. Position open until filled; applications received by January 25, 2019 will receive priority consideration.* -- Emily Thompson Summerhays Director of Operations Boise Bicycle Project 1027 S. Lusk Street Boise, Idaho 83702 208.429.6520 boisebicycleproject.org https://youtu.be/D-v5vS-03gk?t=8s

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Announcing the Passing of Darren Knox
by Josh Bisker 23 Jan '19

23 Jan '19

Our beloved friend Darren Knox passed away this weekend, finding peace after a long and painful battle against cancer. He was a deeply gentle, loving person with a generous spirit and a beautiful heart. His final conversation was with a childhood friend, to whom he said "I love this world," and "people are beautiful." He was 33. Darren died at his home in New Orleans surrounded by a close circle of loving friends and his parents. He had been fighting with the cancer for a couple years now, but had kept his struggle mostly private. His health declined sharply over the last few months; between spring and fall this year, he lost a huge amount of weight and energy, and his body started slowly failing as his cancer advanced. Although he had planned to come to Bike!Bike! in LA, a city he had once called home, he was no longer up to it when the time came. When we talked on the phone that weekend, he broke down crying, which was very rare for him. He said, "I'm usually so stoical about all of this ... but I just can't take it that I'm never going to make it to another BikeBike." Darren had dedicated his time and love to bike coops in New Orleans, Chicago, and Portland (and I believe other places too), and many of us knew him from Bike!Bike!; his first one was in 2013 in New Orleans (he moved to New Orleans after Bike!Bike! 2013, you know. He just stayed -- how about that?). Darren expressed to me passionately and often that Bike!Bike!, the community bike shop world, and all the people in our tribe have been among the most important parts of his life -- the things that have given him the greatest sense of purpose, belonging, comfort, and happiness. Our labor, our love, our camaraderie, our boldness and zest for life, our politics and commitment to gender equity, our do-it-together "yes we can" sensibility, and, more than anything, the warm, deep, wacky love we show each other as a community ... all these things kept his spirit burning brightly for the world around him, for his entire adult life. *Darren also had hopes for our community*: he strongly desired that we work more mindfully and expressly on confronting white supremacy. He actually led a workshop on this in Columbus in 2014 -- this is actually where I learned to understand the term white supremacy, if you can believe it. When I visited him in New Orleans last month, he told me that this is still his wish: that we work hard, as a community, towards making this struggle central to our movement. I hope his vision guides our futures. And I hope, as well, that in the midst of our sadness, we all feel glad that the movement we've built together so far became one of the most meaningful parts of the beautiful life that has just sailed away from us. There will be a memorial service for Darren in New Orleans on February 9th; you are all welcome. Check the Bike!Bike! Facebook group <https://www.facebook.com/groups/648758205249998/?ref=bookmarks> for details, housing arrangements, and so on. So, let us organize. There's talk afoot about ensuring that future BikeBike conferences work to include workshops on issues like "Moving Beyond Saviorism Towards Solidarity" -- the title of the one Darren facilitated in Columbus -- and other topics related to overcoming white supremacy. There's also been ideas floated about a monetary collection, possibly to fund an organization that Darren was passionate about, or to bring anti-racism teachings and actions into our own organizations. Please contribute your ideas in this thread and we'll see where we go. Please also feel free to contribute your memories and photos of Darren here. If you wish, we'll do what we can to convey these down to New Orleans on the 9th. "I Love This World" and "People Are Beautiful" are nice last words. Please carry them with you today. Josh Josh Bisker 914-500-9890 New York Mechanical Gardens Bike Co-op <http://bikecoop.nyc/> 596 Acres <http://596acres.org/> Bindlestiff Family Cirkus <http://bindlestiff.org/>

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