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3D Printing

12 Posts authored by: Andy Clark (Workshopshed) Top Member
During the Enchanted Objects design challenge I learnt quite a few things about 3D printing and OpenSCAD, I thought I'd summarise and share them here. My posts in this challenge were all themed with a running story hence the strange titles. My printer is the Cel Robox which I received earlier in the year for a roadtest, this was my first exposure to 3D printing.   Failure to making parts that clip together, self tapping screw to make moving joints Enchanted Objects Design Challenge - The ...
I've been designing a magnifier light and one of the parts I thought I'd 3D print. It's right on the limits of size that the Robox can manage but it just fits onto the bed. I started a test print to check the sizes and it seems to be correct. I did however increase the speed and layer thickness and that meant that the edges went quite wavy. I'll give this another go when I've got some time as I believe it could be a very long print job although I think a few model changes and adjusting a couple ...
As mentioned in the previous post the printer had to be sent off for an upgrade. When it came back there were some differences.   Firstly the packaging had been updated. The printer comes in a smart Robox bag which I'm sure will nicely double as a dust cover. The full set of accessories is also present with the oil and tweezers missing from the original pack now being present. The bed, head and z-axis are now all clipped in place with some 3D printed clips to keep them from moving in t ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product   Fan issue CEL told me that the strange fan issue from the last post was a known issue with these engineering release printers and was caused by a MOSFET failing due to high voltages when the fan is turned off.   New Bed CEL also sent me a new bed with a different texture. Installing a new bed was very straight forward, simply unclip the old ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product   After my success printing a sheep I thought I'd have a go at something else. Later in January I'll be meeting with the Alumni Association of the Student Television of Imperial College (or PSTOIC for short) and every year we have a mini award ceremony. For this reason I thought I'd make a medal for the winner based on an old version of the TV Sta ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product   At the end of my last post on test prints the printer was out of commission with the bowden tube and extruder parting company. CEL responded promptly to my support issue and despite the New Year managed to get me a new tube very rapidly.   Bowden Tube Change  Old tube on the left, new tube with metal ferrule on the right. The Bowde ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product   For my first few prints I thought I'd make some toys for the family, the results would not be critical and they should give the printer a bit of a work out.   Before each print the printer does a short purge of the print material and cleans the tip using the little wiper at the front, it's important to clean this off periodically otherwise ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product   The Robox case and mechanism feels very robust, with a mix of metal and plastic, it's held together with lots of hex socket screws. The case is split into two parts with the reel and electronics on the left and the printing space on the right. The top, front and right side provide great viewing area to see the printing in process.   The pr ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product As per the software the documentation looks smart and professional but needs a little polishing to get it perfect. The following might sound a little pedantic but please don't think that I'm being negative, my comments are there so things can be improved.   The first bit of documentation you'll see is the wrapper on the box. That's followed by a ...
Information This Roadtest has been done on an "Engineering Release" version of the product so there may be differences to the released product   Fellow roadtester dougw mentioned that he'd had to upgrade his video card to run the automaker software so I thought I'd also check my machine which is a Dell OptiPlex 755 from a few years back. It's the ultra small form factor so there's no option to do any upgrades.   I downloaded the Automaker software and it reported a problem. I ha ...
Cel and Element14 have been at Electronica 2014 this month showing people Robox printer. Photo credit doctorcdf   I'm looking forward to it arriving but have been thinking about the Roadtest.   One of the tasks we are asked to do for a Road Test is to mention what comparable products you've looked at. In the Kickstarter project Robox suggested the following list for comparison.     Given that even the most basic printer starts at more than £500 I'd not actually ...
A big thanks to Element14 and CEL for letting me road test this printer, it's not arrived just yet so here's a video from the IET about the printer.   Gears, shafts and clock parts  I plan to use the CEL Robox 3D Printer to print gear wheels and components for electric clock mechanisms. The fine resolution print head should allow the detail needed to print gears, screw threads, shafts and hands and other parts. The higher print speed should allow different versions to be made qui ...

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