Demented Chihuahua Wrote: ------------------------------------------------------- > Sort of agree with Leav on this but I don't see as > there is much else to do. why? there is no technical obstacle. I really think this should happen. and it's not that big a deal to do. Otherwise it will all just be a big mess.by Leav - General
I am still against using the "builder's wiki". I favor a brand new wiki which has a separate database and is completely clean when we start. otherwise we will be scrambling to figure out what the heck we were just editing, which pages are with the new design and which pages are from the old design, what should link where and which version of a duplicate is the newer one. please don't go this wby Leav - General
Looks like we are all on the same page here. How can we get the ball rolling? Like I said earlier, I think the best option would be to have a completely new wiki, which we can edit until it's ready to be moved in place of all the current websites and wikis. then archive all the old stuff in a forgotten corner until it's no longer needed. What say you? -Leavby Leav - General
then that would be a better response @Sergii I agree with Forrest on this. you really shouldn't try to make a Darwin with traditional manufacturing techniques. I suggest you either try to build a RepStrap, which is a sort of improvised Darwin from parts you can easily get. Or.... you could buy a kit from -Leavby Leav - Mechanics
Hi Nitzan, I'm working on it at the Technion (Haifa), where are you? this is cool -Leavby Leav - Israel, Tel Aviv RepRap User Group
lol the sunglass guy is from using B and then ) (when joined they look like a smily wearing sunglasses and the forum automatically converts the symbols to an image). ==Back on topic== two possibilities exist as far as I can tell: 1)Keep the design modular so that any part can be developed independently. an example for this would be to design the cartesian bot with some sort of universal conneby Leav - General
@Edtharan The "market" you describe seems like it could really use a RepRap. and I really think that the simplification of the project is crucial for it's widespread success. Right now i'm pushing for the simplification of the "meta-physical RepRap", that is software, web pages, wikis, instructions et cetera. I think that the major mechanical simplifications should wait for mendel. In the mean tby Leav - General
Hi guys, This should really go in the development forum I think, but I don't have permission to post there. I'll keep this short and simple: I think that the RepRap design should become more standardized. for a newcomer there is no single set of files he can download and almost no indication on what to use. In software terms: we are like the SourceForge projects that only provide source codeby Leav - General
Hi Rob, I was assuming you were using thread-less PVC pipe (the kind glued together). You should try it, it's a tight fit, which is perfect because you could sand it down and add lubrication as necessary. regarding bearings: I think you should try just plain old bolts through wood. worst case scenario: through in a bit of PVC pipe around the bolt to get a smooth surface. -Leavby Leav - Mechanics
DC: Yeah that makes sense if your hand is the source of the jerkiness... I would have thought that friction would be the culprit... I'm sure that even the $50 tripods have bearings good enough for the friction to be a non-issue, but I was thinking that maybe a homemade one would not be so lucky. -Leavby Leav - Mechanics
|I don't see how this would solve the problem since I think the problem is from the difference between static and kinetic friction. because max static friction is higher then the kinetic friction then what happens is this: 1)you exert a force and nothing happens because it is too small to overcome the static friction. 2)you slowly increase the force. 3)you suddenly overcome static friction, theby Leav - Mechanics
Sure thing, I'm guessing that we'll be seeing you around here soon enough... regarding the PVC: sounds good.... try sanding the inner tube down a bit (very small amount) and adding lubricant. Good luck! -Leavby Leav - Mechanics
Hi Matt! I'm almost as new as you! I started gathering parts 3 weeks ago and building 1 week ago. I personally have access to a 3d printing machine, so I'm starting from a Darwin. Unless you have similar access, I would suggest that you start from a BitsFromBytes or Ponoko kit. It's down to personal taste really: if you are the kind of hard-core tech guy who likes to dive head in then go for aby Leav - General
in fact..... here is a better design which has everything of both ideas: Red Profile is attahched securely to camera (can not swivel at all) Red and Green profiles connected by two bolts on the camera's CG line (put the butterfly nuts on the outside for adjustment). now you can tilt up and down. Green is attached to Purple to camera to pan left and right. Green attached to wood or anything elseby Leav - Mechanics
I can't really undestand... does this have anything to do with RepRap? Are you trying to make this with a reprap? sound like you could make this really easily with a 90 degree metal tab, nuts, bolts washers and basic tools. if you want the camera to stay in place on it's own using bearings isn't a good idea, since they are made to be frictionless and holding the camera would require friction.by Leav - Mechanics
Thanks again nophead! this raises additional questions: 1)where can I get the files for the doctor blade setup? 2)is the double deck a must? Thanks! -Leavby Leav - Mechanics
Hi guys, Lots of questions get raised when you start building stuff! so... about the bed... 1)why does the parent reprap in the following picture have a double decker bed? look here: 2)why do both beds (on the parent) have a hole on the side facing the camera? 3)what is the part I have attached a picture of (wtf-mate.jpg)? is this part of mendel? I had some more questions but I can'tby Leav - Mechanics
Thanks!by Leav - Mechanics
The Parts list, the STL Files, and the Wiki Instructions all talk about different types of bearing inserts: Bearing Insert (180by Leav - Mechanics
corrected link: besides the broken link, any thoughts about the idea? -Leavby Leav - Mechanics
I was at a very boring presentation and I started playing with the blinds (that cover the windows) and I noticed that not only was I holding a ball chain, it was connected to a special Sprocket which is apparently an Off-The-Shelf item.... see here: so regarding: I think that if the ball chain works out to be accurate enough than it is a possible replacement for the McMaster belt. At firstby Leav - Mechanics
Hi! Dr. Bowyer told me that Ed (his student) is the one taking care of updating the parts list. Anyone perhaps got his e-mail? I'm desperate for the Cartesian Robot 1.05 parts list... -Leavby Leav - Reprappers
looking back, I really don't see a problem about using a couple more bolts. they are much easier to get and much much cheaper than a rod.by Leav - Mechanics
here it is, the idea is to have the rod more resistant to sideways load. (that may cause rods to slip and separate. This is just the general concept of using a groove really. I'm sure that this particular setup can be improved greatly but the groove is key. Not sure how you would tighten this. perhaps V1 is a better option after all -Leavby Leav - Mechanics
I like the Idea! I think the design should be interchangeable with steel rods, so that people using a printing service can easily use steel rods instead of paying $1000 for a rod. I have an Idea for V3, but it won't translate into words well so I'll post a pic when I reboot into windows later and start up SolidWorks. -Leavby Leav - Mechanics
can you ping it?by Leav - RepRap Host
Hi guys, does anyone know if the RRRF store has a fax number? My university can not order parts from a supplier unless they have a fax number. and this is supposed to the leading tech-university in Israel *shakes head*. I tried explaining that fax was *so* last millennium, and I have the whole order on e-mail and whatnot but they wouldn't listen... My mentor said he'll use his own credit cardby Leav - Reprappers
James, You are completely correct, of course, but I think you are missing the point a bit... (or at the very least you are missing what I consider being the point ) The question is of standardization. RepRap needs to have a viable CAD solution in order to really succeed. I'm guessing that a lot of people will chosse to use professional tools they can get for a bargain from their work or schoby Leav - RepRap Host