nico71

Hi Nychase, You may know that 3 year ago, I have tried to start a website like mocplan (called mocshop, is it funny ?). At the beginning I would only sell my buildings instructions but after I throught that it could be possible to sell any instructions. I have consequently developed many features for that including online viewing, paypal, fee and so on but I have chosen finally to make all my instructions for free, that is why mocshop has never been launched. But, you have succeeded to make that real ! therefore, many thanks for you ! Also, you website really looks likes very good , very proffessional ! I don't like the fact of selling something in a passion but it is only my opinion and trully respect the amount of work necessary for building an instructions (I know it !) so I respect also the position of selling instructions. All the best for the future :)

Hello, sorry to have not answered ! I have arround hundred messages (youtube, mail and facebook) of fan each day, now I can not handle and respond to all people. therefore, sorry to have missed your email. Thanks you all for your comment !

Hello Everyone ! I have failed to update my topic, so I do now : A big project, took at least 3 months to build : Citroen 2CV charleston including every original features like particular suspensions and removable bodywork : And the video : This creations allow me to be contacted by Official Brand Citroen, for displayed a copy of my 2Cv in their musuem about tory and reproduction of citroen car. The second creation is a thing I would male fo a long time : a clock powered by a Pneumatic engine ! http://www.nico71.fr/steampunk-pneumatic-clock/ Of course there are building instructions for the two creations ! But not bild of material for the 2CV. http://www.nico71.fr/citroen-2cv-charleston/

Hello, Here is the instructions : http://www.nico71.fr/awd-rally-car/ You can browse the instructions in my blog or download the PDF. Concerning the parts, here is the two pages of bill of material : Page 1 Page 2 The rebrickable link will be available soon. Concerning the difficulty, there are 1300 parts and 83 pages of instructions which is in fact a dissmantle photos sequence so a bit harder but there is the aim :) Good building.

Hi, Many thank to you David, I have really no time to make update on this topic. I am very gratefull that you did. Concerning the car, thank you for the comment, as said, it is an interesting concept at this scale, and for the building instructions, there are on the way. Stay tunned to the youtube account or facebook. :) Nico71

Google has detected that the video is not stable and have made correction. Not really usefull. I will solve this

And the new planimeter is here : orthogonal planimeter. The planimeter is equiped with a disc / wheel integrator, which is more precisely than the pritz planimeter. Concerning the functionning, the polar arm can be rotate, and when the planimeter is pulled, the yellow disk rotates. The combinaison of the displacement of the disk and the angular position of the wheel integrates the curve. And thansk to green's theorem, the line integral of the curve is equal to the surface below therefore the area. As a consequence, the system for moving the disk is not a bevel gear but a tyre bevel gearing, which has not dead-point. This device is more accurate than the pritz, because of the integrator system, which is not an approximation of the area but the real value. (corrected version of the video) :)

You are right, I am a mechanical engineer working on the methods departement in a machining company. Maths are linked to my job but I don't really use often.

Thank you, I am always happy to hear that, of course, don't hesitate to comment or critizise. The building instructions of the planimeter is ready, available in PDF or viewer on my blog : http://www.nico71.fr/pritz-hatchet-planimeter/ Waiting for the next... :)

Yes of course, if not, it will be not very confortable for your to use the planimeter. Regarding math : yes it is a nice way to use maths. @crowkillers : you would certainly have used this type of planimeter, most common in fact : or the orthogonal version : Isn't it ?

Nothing ! Juste a 40/8 gearing. The aim is only math : the green's theorem : http://en.wikipedia....Green's_theorem The trick is that the angle between the begining and the final position is arround equal to the double integral because the cursor follow a tractrix which is arround equal to the derivative underneath the curve, and the double integral is the surface thanks to green's theorem. Some readings : http://www.planimete...et/hatchet.html http://persweb.wabas...Prytz/Prytz.htm http://persweb.wabas...z/PrytzArea.htm ps : yes I will make instructions, it is very basic.

If you likes maths, here are some : Very simple and very clever I think, the planimeters are awesome object ! I plan to build some other, include polar and orthogonal for the exhibitions at fanabriques in june, 2013.

Here is some news ! I have finished the project of the Stage Trailer and I will deliver the creations to the customer. You can follow the story of that creation here : http://www.nico71.fr...-stage-trailer/ The video of the model : After 4 month of work, I am quite satisfied of the result and my customer too, it adds a sucess to my industrial references.

The instructions and the article are available on my website ! http://www.nico71.fr/hot-bulb-pneumatic-tractor/ The bill of material, waiting the aproval for my moc on rebrickable. Have a nice build :)

And for those who asked for a video about the engine, I have made on with SR3D to show how it is made.

Thank you ! A new creation : a hot bulb tractor with a special features : adjustable ignition point : :)

I have seen that I have not presented my digicomp ! In late the video of this mechanical computer based on 3 digits : To understand the complex functionning, please read the descriptionon my website here : http://www.nico71.fr...puter-digicomp/ Also, I am currently working for a company which produce special folding stage trailer : a trailer which turn into a stage using moving parts. Here is the first prototyp : The aim is to build a replica of their product (available here : http://www.stagemaster.fr/ ), I have estimate the cost and have done the first part order today. I work also on a new pneumatoc tractor with a special features : ajustable ignition timing. I will let you know when it is finished.

Thanks Paul for your post. I don't think it is a big problem. It is lego. Concerning that, maybe you are right, Scoot is not a thief. The fact is I have searched in my mailbox and he sent me an email the 25th of Jannuray to show me his version of my Morgan with the black/red color scheme. We discussed about it and that is all. He never talked to show it at Brickfair. I have not remenbered that before. I am lukewarm, on a side, Scoot could have missed something and the morgan could have been considered as an entry for the contest. But in an other side, when the staff has rewarded the creation, he didn't said "it is not my creations!", he has accepter the trophy. I hope scoot will be able to give me more informations. Yes, It would be nice to have that and as you said, avoided the situation. In France ! Lego technic stand are nearly one of the biggest stand :)

Martin Shoover has contacted me to inform me about that : I have no word. The morgan I think is a known moc so I don't understand how it is possible for the organizers of the show to be fooled. Any informations would be interesting for me, name of this thief would be nice.

thanks ! And the video taken during Fanabriques : Result : 70m of string give 30cm-lengh of wowen material ! Who want a socket ? :)

Something new : http://www.nico71.fr/harley-davidson/ Ok, mainly inspired by Tango's work but slighly modified in order to be displayed at fanabriques which have taken place this weekend. The video of the finished mechanical loom will be come soon.

A litle bit of mechanics : It will be used on my mechanical loom to prevent damages :)

and the video to show the result of the first atempt to build the loom. You will see why it doesn't work : depending of lot of factor : tension, reed and thread (not juste the shuttle). So I have changed the system of launched shuttle for a pushed shuttle. I will show you.

And the Wheeled Snake has been indexed by Nathan at rebrickable : http://rebrickable.com/sets/nico71/wheeled-snake Caution : heavy post ! I will present you my work around loom machine. First of all, here I am today: Of course it is not the first attempt, I have made lot of attempt, searches and I present you the first working prototype. To read the complete development, you can read the translated page of setechnic : The aim is to build for the exhibition Fanabriques 2012 a automated mechanical loom (no RCX-NXT) which is capable of weaving non stop during the exhibition (except maintenance time). The prototype is quite validated. Concerning the functioning, I encourage you to read the article on Wikipedia : http://en.wikipedia.org/wiki/Loom it explains very well the functioning. Which is composed of: 1. Wood frame 2. Seat for weaver 3. Warp beam- let off 4. Warp threads 5. Back beam or platen 6. Rods – used to make a shed 7. Heddle frame - heald frame - harness 8. Heddle- heald - the eye 9. Shuttle with weft yarn 10. Shed 11. Completed fabric 12. Breast beam 13. Batten with reed comb 14. Batten adjustment 15. Lathe 16. Treadles 17. Cloth roll- takeup My model is a flying shuttle model. Here is the basic cycle of weaving: The heddle frames move up the shuttle moves from righ to left the reed moves and press the weaving pattern The heddle frame moves down the shuttle moves from left to righ the reed moves and press the weaving pattern And the cycle is repeated. Now how I built that. I have first of all build a basic chassis which support all the component: Then I have put in place a basic system of slider to lead the shuttle : You can see here the group of reel which composed the 22 thread of the shed. After that, I have made the system for moving the shuttle called the pitcher (the green liftarms) : Each pitcher is linked with a rubber band in order to launch the shuttle. To make the movement and tighten the pitcher and the rubber band, I use a cam with variable profile. It is composed of 3 corner 3x3 technic. The last empty corner is to generate the launch of the shuttle : And in order to have a accurate pitchers, I have made two device of pre-tension. Indeed, the accuracy and velocity of the shuttle linked to the pitcher depend lot of the stretching of the rubber band. At the end, all setting will be displayed on multiple dials (speed, pre-tension, movements). Also, after the group of reels, I have made two drums which grip the 22 thread of the shed in order to unroll slowly the shed and to control the tension for the sheed (again important for the functioning). The crossed reed is used to avoid the snarl. On the front, it is a big drum which winds the complete weave. All drums are going to be synchronized in order to have a slowly and constant forward movement. Concerning the shuttle, it is very simple and yet not so simple. Indeed, the shuttle muste be smooth as possible in order to slide smoothly in the shed (no stop, no clash, no bump). That is why I use liftarms which have rounded shape. On a shuttle, 10m of thread is winded. Now concerning the « mechanization » of the loom. First of all, a XL motor with 2 8t/40t gear drives the main shaft. The shaft drives after the two system of cam for the pitcher and the system of control the heddle frame. Here is a underneath wiev : On the right and left view, you can see in blue the mechanism of control of the heddle frame. The system is not based on well-known lever and connecting rod. I use a lever but with a sliding connecting rod, also considered at variable length connecting rod. This system enable to have a output intermittent movement which is better for the application than linear motion. To finish : the loom works, it works good but not really accurate. I need to improve the accuracy and reliability. The last part of the mechanization is to connect the main reed to press the weaving pattern and after the construction of the dials. Here is a view of a preliminary weave : And to finish, a complete view of the loom : If you have some questions, remarks, comment, don’t hesitate !:)

Nice moc ! Very complex has usual, and always realist !