Show all posts by user
People building or using RepRaps.
Re: LISA Simpson - 11 years ago
Quoteuncle_bob Do the motors move or are they stationary? [/quote/ Motors are stationary. QuoteIf the motors are stationary, the moving racks get pretty crazy. Yeah, I've been thinking about it. In order to get a decent Z, you would need 2xZ room for the racks protruding through the top. QuoteEither way having the system rotate like the LISA does would be difficult. Once you drop rotation atby SheldonE - Delta Machines
Re: LISA Simpson - 11 years ago
Been thinking about the whole screw issue. Would you be able to implement somekind of rack-and-pinion setup? Have the pinions connected to the motor and the rack drives each axis.by SheldonE - Delta Machines
Carbon Fiber 3D printer - 11 years ago
The MarkForged 3d printer prints Carbon Fiber. initially desgined to build F1 body parts. I am no way affiliated with Mark.by SheldonE - General
Re: Garcads WATER-COOLED hotend produces high quality ABS prints! - 11 years ago
Quotejzatopa I'm sorry but I disagree. The for sale area is for products that are being sold. It is not the place to list specs, performances and uses. The issue here is that we have not seen any specs. The only thing we've seen by way of performance is some pictures of some very average prints.by SheldonE - General
Re: Hardware store hot end - 11 years ago
Looks good, one question, where are you going to mount the thermister?by SheldonE - General
Re: reprap humor - 12 years ago
I think you over did it on the retraction. Maybe you could post this in the competitions section for the funniset caption.by SheldonE - General
Re: Prusa i3 Frames - 12 years ago
Hence why there are so many i3 variants.by SheldonE - Prusa i3 and variants
Re: Next generation of RepRaps, which to build? - 12 years ago
Persoanlly, I'd be looking at a Simpson. They seem to be the closest to a true RepRap than anything out now.by SheldonE - General
Re: Open Hardware helps build communities - 12 years ago
Traumflug Wrote: ------------------------------------------------------- > Comparing this sentence to RepRap, where > apparently everyone goes away to open a shop, a > really distinct experience! Considering radio hardware has been around for nearly 100 years and 3d printing for nearly 30, I think we have a ways to go before this technology is ubiquitous enough to match that of radio.by SheldonE - General
Re: Ideas to make printed parts -- Cosmetically Appealing -- - 12 years ago
Google "acetone bath" for ABS smoothing.by SheldonE - General
Re: Tri-Polar Bot Concept -- Meet Wally - 12 years ago
Oh dear, the article attributes you as the creator of the Morgan.by SheldonE - Polar Machines, SCARA, Robot Arms
Re: Servo control and automatic bed levelling - 12 years ago
cozmicray Wrote: ------------------------------------------------------- > Isn't this a bit absurd for a once a week > adjustment? Maybe, but I remember when printer paper came in perferated sheets with alignment holes on either side. Now the paper comes in single sheets and the printer aligns the paper automatically. To get 3d printers to the level of a consumer device, automatic bed leby SheldonE - General
Re: news about 3d printed firearms - 12 years ago
London Design Museum buys the Liberator The world’s first 3D-printed gun known as the Liberator has been treated as a technological marvel and a terrorist threat. Now it’s officially become a work of art.by SheldonE - General
Re: 6.3mm x 3.0mm Jack - 12 years ago
This is off topic, but I think theres an issue with either TJGR's account or my account. I can't see any of his posts. Even his old posts.by SheldonE - General
Re: Problem with attaching extruder to carriage Mendel - 12 years ago
I think the x-carriage is upside-down.by SheldonE - General Mendel Topics
Re: Wades extruder without the hobbed bolt? - 12 years ago
I just brought a Hyena, not used it in anger yet.by SheldonE - General
Re: Wades extruder without the hobbed bolt? - 12 years ago
If it was the right hardness it would definitely put enough pressure on the filiment. The question is, what's the right hardness?by SheldonE - General
Re: 3DR released - 12 years ago
vegasloki Wrote: ------------------------------------------------------- > The 6 mm bearings and rods are out there. Easier to find in metric oriented countries, like Australiaby SheldonE - General
Re: New to RepRap and have a few questions. - 12 years ago
chris33 Wrote: ------------------------------------------------------- > Mendal Yeah, for some reason I saw two Z motors on the Mendal. I think I need glasses.by SheldonE - Reprappers
Re: New to RepRap and have a few questions. - 12 years ago
That looks like a Huxley with a Wade's Geared Extruder.by SheldonE - Reprappers
Re: Tri-Polar Bot Concept -- Meet Wally - 12 years ago
Keep it simple, run with a rack and pinion setup.by SheldonE - Polar Machines, SCARA, Robot Arms
Re: Stepper Motors at Liquidation Prices! - 12 years ago
hcker2000 Wrote: ------------------------------------------------------- > Can any one weigh in on if these are strong enough > for a prusa i3? They should be fine for the X, Y and Z axis, I wouldn't use them in an extruder though. > Also will they work with the ramps > board just fine? If so I will buy some. They should work with ramps just fine.by SheldonE - Stepper Motors, Servo Motors, DC Motors
Re: Changing Prusa i3 Z-axis threaded rods to 8mm in SCAD - 12 years ago
DanMoto Wrote: ------------------------------------------------------- > It was changed to M6 to reduce Z wobbles. M6? I thought they were M5...by SheldonE - General
Re: ABS Mouthpiece Safety after Vapor Bath - 12 years ago
From the acetone wiki: Health information Inhalation of high concentrations (around 9200 ppm) in the air caused irritation of the throat in humans in as little as 5 minutes. Inhalation of concentrations of 1000 ppm caused irritation of the eyes and of the throat in less than 1 hour; however, the inhalation of 500 ppm of acetone in the air caused no symptoms of irritation in humans even after 2 hby SheldonE - General
Re: Stepper Motors at Liquidation Prices! - 12 years ago
You don't seem to ship to Australia.by SheldonE - Stepper Motors, Servo Motors, DC Motors
Re: Fan comparison with PLA. - 12 years ago
I'm not familiar with those fan sizes, 60x25mm and 8x25mm.by SheldonE - General
Re: Do we really need Fans? - 12 years ago
rsilvers Wrote: ------------------------------------------------------- > Maybe the answer is to hit the part > from all sides at once. You could use something like thisby SheldonE - General
Re: Grounded Experimental Delta Printer - 12 years ago
I assume you figured out the scaling issue. Have you managed self-replication?by SheldonE - Delta Machines
Re: Prusa i3 dimensions - 12 years ago
uberdog99 Wrote: ------------------------------------------------------- > a) distance between the Y corners on the Y-axis I don't think this distance is crucial, but it has to be exactly the same width on both short ends so the smooth rods are parallel. Just set one side, mesure with some calipers and make the other end the same width. > b) distance from the Y corners to the frame I doby SheldonE - General Mendel Topics