The Street > The Lounge
Sheepdog still out there
Cellmember:
Google are P.ricks they just want to censor everything, F.uck em.
MEAT:
That printer is amazing, never seen a delta one before and took a fair old while to figure out what was going on, it can't be as accurate as a regular one with 3 linear sliding axes is it?
Can't really find any videos or much else about them
Kinchy:
Sheepdogs achievements:
1. Moves forum over to 'better' host, many old members lose log in details.
2. Removes rep
3. Deletes popular threads
Thanks m8
sheepdog:
--- Quote from: MEAT on March 13, 2015, 01:08:42 AM ---That printer is amazing, never seen a delta one before and took a fair old while to figure out what was going on, it can't be as accurate as a regular one with 3 linear sliding axes is it?
Can't really find any videos or much else about them
--- End quote ---
Cartesians (normal printers) are based on 40's milling machines designed to be operated by humans, ours (a delta) is based on more modern robotics. A cartesian is linear across the surface (it's steps per mm never change), while a delta changes precision as it moves out from the center (more or less steps per mm). However, in terms of accuracy, everything else matters far more than your movement resolution once you reach a certain point, how fast you can make such precise movement, how good your filament is, slop in the drive system, etc...
The good side of a delta though is the combination of speed and precision, there is less weight being moved, so there is less mass to switch directions and develop slop. We went so fast and developed so much back pressure in the system that we were breaking everything we got off the shelf, including the nozzle. Unfortunately a delta requires twice the processing power as a cartesian, and on ours, we went with double the motor resolution as well, making it need even more processing power, which is actually a serious limitation for some. We fixed that by using a cell phone processor, rather than using toy robotics electronics.
For the same level of detail and quality, we can run 3 times as fast as most other printers on the market, and often 3 times as fast.
alaskun:
Removed - You really don't want to cross me right now.
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