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Prusa i2, Prusa i1, Prism, Sells, and other Mendel variants
Re: Hottest Hotend Available - 12 years ago
I have been meaning to try an Arcol for some time, very good feedback from people using them. Also - Josef Prusa's new all metal hot end is almost ready for release - 300 degreees C operating temp with a Thermistor 500 degrees if using a thermocouple! Picture by Josef Prusaby richrap - General
Re: Wrex 3D Printed Prosthetic "Magic Arms" 
- 12 years ago
That's an Awesome video. You just have to love 3D printing when you see something like that. The only thing that spoilt it for me was that Stratasys files it under /IP on their website page. Fail. Take a little more care, big business. I Agree, we should be doing more awesome stuff like this with RepRap.by richrap - General
Re: Azteeg X3 Controller - What do you guys think? - 12 years ago
I agree to some extent, but this board is still using StepStick / Pololu driver modules, so that is not really (at all) providing adequate heat-sinking for the Driver chip either. The design guide shows that the thermal slug is on the underside of the chip, so Kliment is correct, but putting it on a Stepstick only provides minimal cooling via the copper plane on the very small PCB even with theby richrap - General
Re: 3D-Printed Chocolate Rabbits - The Movie - 12 years ago
Genius! - love the movie, chocolate is very tricky to print, so I'm glad to see it's working well for you. You should do a Part 2 ! Rich.by richrap - General
Re: Contacts info for a get together - 12 years ago
Looks like another good RepRap day, sorry I could not make it this time around, hope to get to the next one.by richrap - West of England RUG
Re: Machined Extruder- Thorp's build log - 12 years ago
Great to see you back Thorp! I'm going to keep an eye on progress, I always wanted you to finish this extruder, if I can be of any assistance at all, do let me know, & more than happy to help sound out ideas. Cheers, Rich.by richrap - Plastic Extruder Working Group
Re: Raspberry Pi RepRap and python - 12 years ago
Thanks, I have it working at 115k2, but would still like 250k if possible. Just spotted the new build 'wheezy' so that's worth a try at some point.by richrap - Developers
Re: Our Mendel90 Build Experience and Mods - 13 years ago
Very Nice build, good job. I'm very tempted to make one up - Is anyone selling cut Acrylic or PC sheets for Mendel90 yet? Anyone scaled it down? Huxley Sized? would make a great portable machine.by richrap - General
Re: printing sketch up files - 13 years ago
Usually if you design and export .DAE from Sketchup and convert with Meshlab then you need to scale by 25.4 in Netfabb and it will be 100% accurate and to-scale. Or use the plugin above.by richrap - General
Re: Contacts info for a get together - 13 years ago
Thanks everyone, what a grand day, I had a lot of fun. It was really fantastic to see so many of you with great machines, ideas, designs and printed objects. We seem to be making wonderful progress with all our plans for machine changes, developments and improvements, I can't wait to see everyones upgrades next time. Thanks for the thought and contemplation on my experimental extruder issuesby richrap - West of England RUG
Re: Contacts info for a get together - 13 years ago
All still on for tomorrow, looking forward to it. Let me know when you get there or call if you get stuck/lost. We will need to unload cars and then park outside of the estate to avoid annoying people. And think of me tomorrow, I will be starting our Chilli at 7:00AM tomorrow as it takes all day to cook Cheers, Rich.by richrap - West of England RUG
Re: Azteeg X3 Controller - What do you guys think? - 13 years ago
Makergear posted a photo of the new M2 Ultimachine electronics, looking like a similar all-in-one RAMPS board. More like the Melzi with stepper drivers on-board. I still think stepper modules are more sensible for many people. I have blown up 5 now in the last two years, most of them were my fault I would have liked to see a few mounting holes in the PCB to put a strip of aluminium heat-sinkby richrap - General
Re: Azteeg X3 Controller - What do you guys think? - 13 years ago
Nice job, something like this has been on a lot of people's to-do list for a long time, it's nice to see someone finally get around to doing it. It's just missing a dedicated connector for a standard LCD and encoder switch input and it would be perfectby richrap - General
Re: Machined extruder - 13 years ago
Thorp was doing a very nice machined extruder design quite a while back, he included a number of drawings and ideas in this threadby richrap - General
Re: Tiny Planetary Gears / Week of June 23 - July 3, 2012 - 13 years ago
That is odd, I never had any issues with hole sizes being wrong. Holes being in-filled was an issue! Check the Estep calibration in firmware again? you may just be over extruding? Have you made a new config from scratch for Slic3r V0.8.4? there were a few issues with importing older issues of configs into new versions of Slic3r. It could also be worth asking Sublime, he has done a lot with Sliby richrap - Competitions
Re: Raspberry Pi RepRap and python - 13 years ago
Thanks, That made me smile I got it all up-and-running on the RPi, but the only HDMI screen I have is in the living-room, so it's a bit of a pain to get it all setup again, and you need a powered Hub for the Arduino as the RPi USB ports are really bad at power delivery so it starts to look a bit manic with a screen, mouse, keyboard, hub, PSU and second PSU for the RPi and a 3D printer on the flby richrap - Developers
Re: Contacts info for a get together - 13 years ago
I have sent directions and details for the South west event on the 14th July to 12 people, if you have not got the details PM me and I'll send them over. Looking forward to seeing you all there for a great day RepRapping! And I forgot to say if you have a deckchair you can bring along, please do, we will be short of about 4 seats at the moment. Cheers, Rich.by richrap - West of England RUG
Re: Contacts info for a get together - 13 years ago
Hi Max, I'm actually helping organise that event in Bristol at the Science park, they have kindly offered us the space for free to do the Raspberry Jam event, my plan was to discuss with them about RepRap events after this one all works out well. You can book a ticket here - I can get you all the details for the venue if anyone wants to try to book a RepRap event before I get a chance to disby richrap - West of England RUG
Re: Looking For A Bowden Extruders Update - 13 years ago
ambiguousphoton Wrote: ------------------------------------------------------- > Those pictures of the frog are gorgeous! I have > never heard of a tantillus printer before but it > definitely made me take a look. I wonder how well > this would come out on a prusa or mendel max. I printed the following model on a MendelMax using No retraction at all (The orange one has no retraction,by richrap - Plastic Extruder Working Group
Re: Tiny Planetary Gears / Week of June 23 - July 3, 2012 - 13 years ago
Andrew Diehl Wrote: ------------------------------------------------------- > Thanks! > > So, I need an opinion before deciding on this next > competition. > > > > Too hard? Hi Andrew, Well done on the win, very nice print indeed. Were all the colours done in PLA or is it ABS? The yellow looks like PLA but I can't tell with the other ones. I would try to print theby richrap - Competitions
Re: Contacts info for a get together - 13 years ago
Hi Everyone, Sorry for the delay, I'll get directions over to all of you tomorrow. Cheers, Rich.by richrap - West of England RUG
Re: Tiny Planetary Gears / Week of June 23 - July 3, 2012 - 13 years ago
I know you said Tiny gear set, but I could not resist any longer and had to print a massive one - 350% bigger version - The Crank is MASSIVE! compared to the original It all fits perfectly and works very well, you can really see all the fine detail in the Knurled handle and nuts at this size. You could probably print a 400% sized version on a Mendel if you had enough plasticby richrap - Competitions
Re: Contacts info for a get together - 13 years ago
Hello all, We have a RepRap get together planned in Stroud on Saturday 14th July if anyone wants to come along. I'm easy with times, I was thinking about 11:00am start until we have had enough in the evening. I'm borrowing a house for the day, so we have plenty of space and facilities it should be nice and relaxed, some food and drinks, printing and chat and maybe even some new development. Weby richrap - West of England RUG
Re: Tiny Planetary Gears / Week of June 23 - July 3, 2012 - 13 years ago
NumberSix Wrote: --------------------------------------------------- > Hi Rich, > Fabulous work! > Just a quick question... is the Slic3r > nozzle_diameter of 0.42 the 'actual' hole size or > a fudged figure? I'm curious to know how you > arrived at 0.42. It's seems a non-standard number, > with nozzles typically being sold as .5mm, .35mm, > etc. > Tks, > Ivor Hi Ivby richrap - Competitions
Re: Tiny Planetary Gears / Week of June 23 - July 3, 2012 - 13 years ago
I got around the issues with Slicer V0.8.3 to print this weeks challenge, and the new version 0.8.4 does not have any of the issues I had, so well worth a download. I made a 6 stage version. Some more images and details are on my blog post here. The planets were printed seperatly as I had some issues and needed different settings, but all the other parts were printed with the followingby richrap - Competitions
Re: Portabee Portable 3D printer which can be packed into a laptop bag - 13 years ago
All my printers now just use the Prusa V2, I use the middle hole (usually where you place the thermistor) as another mechanical connection to keep the board flat. IT works really well, you just need to countersink with middle hole a little (be careful of the tracking) and use a countersunk M3 screw. Use M3 metal PCB stand-off's in all corners and the middle, and you have a nice and flat PCB readby richrap - General
Re: KickStarter Campaign For Dual Extruder - 13 years ago
Thanks, I'll give it a go, I guess this changes the die-swell characteristic's of the J-head.by richrap - General
Re: KickStarter Campaign For Dual Extruder - 13 years ago
Interesting, I may try filing down my nipple and see what difference it makes , I was always under the impression you needed a flat end to make the filament squish out flat a little bit. Is a nippleless nozzle less likely to catch on other parts during moves?by richrap - General
Re: I'm New and Confused - 13 years ago
Hello, Most of it is down to what you are looking for in a 3D printer, size, cost, quality. Good results can be obtained by all the printers you talk about - The RepRap Wiki describes the machines in the following way - Prusa Mendel - Full-sized RepRap, Focused On Low Cost and Ease of Sourcing Mendel90 - Full-sized RepRap, Focused On Structural Rigidity, simple construction, Ease of Sourcingby richrap - General
Re: Tiny Planetary Gears / Week of June 23 - July 3, 2012 - 13 years ago
Hi Greg, Good choice and plenty tricky enough to be classed as a competition challenge. I am falling at the first hurdle, Slicing it - Unless I reduce infill below 60% and also keep the part count down on the bed (to below about 30pcs) Slic3r Version 0.8.3 Crashes during slicing - Then I can get it to slice, but it has filled in the holes in my Planets! - I want a single outline to makeby richrap - Competitions