Recycling failed prints ... an issue that I had completely not considered. Most of the "I want to recycle plastic" messages I'd seen had been in the vicinity of "used milk cartons", "old carrier bags" or such like source descriptions. Excellent point.by RockDoctor - Polymer Working Group
That might work for turning your "cleaned" recyclate into filament. For the take-off problem, I'd look at using a long thin cooling bath - a length of drain pipe or something similar, plugged at the bottom, then taking the cooled filament out of the bath from the bottom by drawing it up through a thinner piece of rigid(-ish) pipe. However, the big problem to my mind is preparing the consistentby RockDoctor - Polymer Working Group
A relatively frequent topic of discussion has been the use of recycled plastic as feedstock for RepRapping. While this has obvious desirabilities, it also has real issues, particularly of consistency of product. It is also a topic that inherently benefits from a large scale approach rather than a "man in a shed" approach. I just noticed an "Innocentre" (whatever that is) "challenge" in this areby RockDoctor - Polymer Working Group
redpiperbob Wrote: ------------------------------------------------------- > Hi RocDoc ... > keep in touch > Bob Will do. As I said, the wife has banned me from getting involved in another "computing bits" project, but I retain my interest. We're in the process of moving at the moment, and in my personal "wish list" for where we move to is either a room for my projects, or a garage whby RockDoctor - United Kingdom RepRap User Group
Hi Bob, Piper of Redness, QuoteRedPiperBob Bob in Inverness I am just starting in this 3D lark. I have oredered the rods, bearings, wood and plastic for the Mendal build. There's myself in deepest darkest and recently-snowed Aberdeen, but the wife forbade me from getting involved in such a project and took over my desk/ workroom for her college studies. So I can't really be of assistance. Therby RockDoctor - United Kingdom RepRap User Group
I'm in sub-tropical Aberdeen, up on the north side. While I'm interested in RepRappery, She-Who-Must-Be-Obeyed isn't and doesn't want me to. There is another guy in Aberdeen (and posting to this forum) who is well advanced on building a RepRap.by RockDoctor - United Kingdom RepRap User Group
During conversation earlier this evening with Lionel-from-Aberdeen, he informed me that the laser-cut plywood joint set that he is building includes a number of parts where a groove needs to be machined to control the lateral play of the bars during use. I proposed a jig for cutting the grooves with a couple of straight edges and a Stanley knife. But on second and third thoughts, I thought that sby RockDoctor - United Kingdom RepRap User Group
Lionel Wrote: ------------------------------------------------------- > too bad for the university. Maybe it will be > easier to get something there once we have a > couple of machines up and running, though. I PMed > you about a meeting time, let me know if you can > do it. > PM replied. Let's see what we can do. > RockDoctor Wrote: > > In theory, true. In practice,by RockDoctor - United Kingdom RepRap User Group
Lionel Wrote: ------------------------------------------------------- > Recycled plastic should not differ from normal > plastic, at least for thermoplastics (PP, ABS and > all the plastics that reprap can use) and as long > as they are clean when recycled. In theory, true. In practice, there is often a degree of cross-linking, oxidation and other reactions that also go on when evenby RockDoctor - United Kingdom RepRap User Group
Hi Lionel, QuoteLionelI'm glad to see that there is someone trying in here! I've been in touch with the university to try and make a reprap club, but since I'm no longer a student, I had to find some motivated people to start the club. And that is where things got stuck. If you're motivated to organise a club, I would be happy to help. You may have misunderstood me - although I was a student atby RockDoctor - United Kingdom RepRap User Group
From the RS page for "Heat Sink Compound" (http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&Ne=4294958691&Ntt=heat+sink+compound+thermal+conduction+paste&Ntk=I18NAll&Nr=AND%28avl%3Auk%2CsearchDiscon_uk%3AN%29&Ntx=mode%2Bmatchallpartial&N=4294955469+4294833370&Ns=stockPolicy_uk|1||new_uk|1&Nty=1&multiselectParam=&selectAttribute=by RockDoctor - United Kingdom RepRap User Group
QuoteSimonRaffertyI also found that putting silicone heat-sink compound between the thermocouple and brass barrel reduces the lag in the readings and has reduced temperature fluctuations a bit. Do you mean the heat-sink compound that you get with many after-market computer processor fan sets, etc? I'm not sure that's silicone-based, but that doesn't particularly matter. There are likely differenby RockDoctor - United Kingdom RepRap User Group
QuoteBodgeIt we are both memebers of the Linkedin reprap group. Didn't know that there was one ... just joined.by RockDoctor - United Kingdom RepRap User Group
Count me as interested. I'll be in town on Friday night for a beer and a chat.by RockDoctor - Reprappers
Hi Lionel, I'm in Aberdeen too, and strongly considering getting/ building a RepRap. Assuming that I can get permission from the wife, which is the difficult bit. Elsewhere you mention an AU student group interested in the RepRap. What's the status on that. FYI, a number of years ago I was involved in setting up the Aberdeen LUG, which is still going. Aidan in Sunny (?) sub-tropical (very) Aiberby RockDoctor - United Kingdom RepRap User Group