Show all posts by user
Page 3 of 3
Pages: 
123
Results 61 — 82 of 82
openjdk - 15 years ago
Just a thought:
Wouldn't it be better to use openJDKJ instead of Java for the software? If you develop open source technology, it makes more sense to use open source software, no?
by
Lionel
-
RepRap Host
Hi all,
I managed to make it work on Ubuntu 64 Jaunty by following Herald's instructions.
To amiller112, it is not librxtxSerial-2.1-7.so that I copied, but /usr/lib/librxtxSerial.so.
Thanks for all the info!
by
Lionel
-
RepRap Host
It seems to me that all these ideas use the principle of forming chains of exchanges, which is a good way to develop a project exponentially. The challenge with chaining is that is has to be organised correctly to be maintained by the community. I suppose that the systems proposed by Etharan or mccoyn would be much more efficient if they were made easily accessible to the newcomers, and easy to t
by
Lionel
-
General
Great idea!
I would be happy to add my name to a list of people who want Mendel parts. Actually, I will need two sets of part. I live in UK but I am willing to pay the postage fees as well as the parts.
Let me know if you find enough people to do that!
by
Lionel
-
Wanted
Very good link, i will try to get this book!
About the issues for replacing steel by Al, I also think there may be some problem with frictions. Al tends to give more friction and jams more easily than steel. but the mendel design uses a good system for bearings, so I don't think it shouldbe an issue. I don't see any other problem on top of my head with Al (apart from scaling, as you mentioned)
by
Lionel
-
Mechanics
It is true that it would take time and effort to cast Al rods. But it would also be one more step towards a completely self-replicating machine.
Maybe some people among the reprap community can organise some 'production centres'? Well, anyway, it does not look like it is going to happen in the near future.
by
Lionel
-
Mechanics
Same here, I need Mendel printed parts, I would like to start a uni club in Aberdeen. Please contact me by PM!
by
Lionel
-
Wanted
Chirdaki, I think you got the point: very few people would send their work to someone if they know they won't see a benefit in the near future (if at all). And that is where the community effect takes place.
If someone sends some parts to someone who needs it, he should be known by the entire community so that other people can reward him for his action. It is a 'loop' effect that can only happen
by
Lionel
-
General
induction cannot heat plastic, it only heats up magnetically responsive materials. That is, materials containing iron, most of the time.
you can have a look here to see how it works:
basically, it is an effect that uses magnetic fields to create electric currents in a material. These currents heat up the material by Joule heating, and eventually melt it if the temperature reaches the liquid poi
by
Lionel
-
General
yep, I also think that a great deal of the problem is a matter of motivation. But instead of a 'pushing' concept (where people would be pushed by the initial cost), I think it is wiser to use a 'push and pull' one (in addition to the initial cost, there would be some more or less direct advantages to print for the others).
@Brew:
300$ is quite surprising, the complete set of plastic parts is not
by
Lionel
-
General
I understand your point.
From my point of view (someone who needs parts), the problem is tha, because of the low offer, I find it hard to find providers. In that sense, a different way of organising the exchanges could be more efficient.
From the point of view of the potential providers, I suppose that a simpler exchange system would make it more inviting to propose their help too. Even though,
by
Lionel
-
General
Do you need to have such stiff bars? Maybe the top bar that supports the weight along its radius needs to be very stiff, but surely the side and base bars don't need to? Especially for Mendel, it does not seem to demanding in terms of rigidity, does it? Maybe it could be possible to combine aluminium and steel bars, depending on their use?
About pricing, the point is that Al could come from a rec
by
Lionel
-
Mechanics
Hi all, from Aberdeen!
I would like to start a Mendel here, but it's so hard to get the printed parts! Anyone would have some time to make me some please?
Cheers!
by
Lionel
-
United Kingdom RepRap User Group
I was thinking about doing something similar, maybe we will need to start another topic for that because it is quite away from the initial post.
I just posted a new topic there:
Basically I would be happy to help with that, but please reply on the new thread.
by
Lionel
-
Reprappers
This post follows a previous post (http://dev.forums.reprap.org/read.php?4,23972) where someone emmited the idea to centralise the efforts around the distribution of repraped parts.
In my opinion, this is a critical issue. I would really like to build a Mendel machine but it is difficult for me to find who can print something for me, and it seems like I am not the only one with this problem. A fo
by
Lionel
-
General
Hi,
Now that the Mendel's design is very good at avoiding jammings, could it be possible to replace the stainless steel bars by cheaper aluminium bars? It would be cheaper and easier to cut.
Plus, aluminium has a relatively low melting point (~660 C) so the parts could be prepared in ceramic molds from recycled cans or foil and distributed cheaply by anyone who does a bit of pottery...
by
Lionel
-
Mechanics
Thanks for your reply, Freds,
I have contacted the electronics and engineering departments, and I will see tomorrow what facilities will be available to the society. I will let you know what we have here.
ok for starting with the extruder. Now I think that, if we get enough finance, we may start with a ready to make reprap kit so we can learn how to mount it, and then we can try to duplicate it
by
Lionel
-
Reprappers
Hi all,
I am in the process of creating a reprap society in Aberdeen university. I am looking for advices, help, tips or anything that can help the start of this project.
For a start, I am wondering which options for the reprap is the easier to buid in term of version for each part. I have not found anything like a summary table, or comparison between all the elements developed. Is there such a
by
Lionel
-
Reprappers
@Larry
I agree with you, I don't think it would be a good idea to warm up the grinder (or whatever will be used to cut the plastic) because once cold, the melted plastic that remain on the sharp edges will be a problem. Why not grind it cold? Then we can use a screw to push the residues into the 'oven'?
@Forrest
Too bad for the grinder, maybe it is too flat? I have seen a video, a while ago, of
by
Lionel
-
General
The blog presents quite a good work! the author also says that he managed to make a machine work the first time (19 dec 2008), but that a problem arised when the machine cools down because the plastic gets stuck in the machine from the previous extrusion.
Well, I think there is a solution for that: in industrial processes for filament extrusion, there are two pinch wheels that pull the filament
by
Lionel
-
General
Is there a website or a blog or anything where the work is being published? If so, I could have a look and maybe give some ideas?
by
Lionel
-
General
Hi all,
I had an idea lately: why not design a recycler? A machine that could be built with a RepRap, and that would be able to recycle plastic bottles or failed and old objects? That would also make people collect plastic object lost in the landscape... to turn them into brand new plastic thread for their reprap!
I am planning to buy a reprap in the next months, so if anyone is interested in t
by
Lionel
-
General
Page 3 of 3
Pages: 123
