Re: Need help setting up new large scale delta 3d printer
I am working on one but I am still in the stages of designing the frame and acquiring all of the parts which shouldnt take too much longer. As for the firmware I am not far enough along to start...
View ArticleRe: Need help setting up new large scale delta 3d printer
Sounds like a plan. What part of the world do you call home? BC Canada here
View ArticleRe: Need help setting up new large scale delta 3d printer
North Georgia United States here
View ArticleRe: Wavy sides, Repetier, original style Rostock
So much for my brainstorming. Wasn't even a light drizzle. Changed the infill and the wavy edge still persists. Next, I plan on changing the microstepping and seeing if bigger steps changes the size...
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Re: 3DR Part Sourcing
Thanks for the info. I thought long and hard about which way I wanted to go. In the end, I decided that, since I like to design things, I'd modify the appropriate parts to use 8mm rods. That way I can...
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Re: Grounded Experimental Delta Printer
Here are the new arms. I will be printing them today. I am super happy with the design. They don't look like igloos or boats (much) and I got my extra gear width (40mm from side to side) and my finger...
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Re: New arm design for Simpson style printer.
Here is a release candidate that I just posted for the arm design. Let me know if you guys see anything I missed. Click over for more pictures and more info.
View ArticleRe: Wavy sides, Repetier, original style Rostock
More interesting would be this info: * what is the period of waves compared to the pitch of your bets/pulleys * how do the waves change when the printed object is in the center of the bed compared to...
View ArticleRe: Grounded Experimental Delta Printer
There's one thing that's been bugging me since the start of the gear-based design. I'm not sure we can fix it without breaking the simplicity of the math. The two pairs of mounts have an asymmetric...
View ArticleRe: New arm design for Simpson style printer.
Have you run any Finite Element Modelling on the arms to check for stress points or model the wear?
View ArticleRe: Wavy sides, Repetier, original style Rostock
Looks like I have some cubes to print today. Thanks!
View ArticleRe: New arm design for Simpson style printer.
I am in over engineer mode to make sure there is no chance of failure. Optimization will come later when I have time. I know how to do stress analysis but I am clueless about how to start a wear...
View ArticleRe: Grounded Experimental Delta Printer
I've been following this thread for a while and I'm very excited!! I'm immensly impressed by the dedication and skill. Job well done! I do have to ask, as I'm interested in creating one of these for...
View ArticleRe: Grounded Experimental Delta Printer
@bluscape why don't you take part in the beta testing? as far as I know there are still some open slots. Nicholas will post the parts when they are finished ( when he will begin building the beta...
View ArticleRe: Grounded Experimental Delta Printer
That sounds like a great idea. How do enroll for beta testing?
View ArticleRe: Idea: A blacksmith bot based on Simpson
I know I have been banging on about this for some time, but why not use small ball bearings. (ballpoint pen size) and have a bank of capacitors, place each ball and zapp weld to the previous ball....
View ArticleRe: Idea: A blacksmith bot based on Simpson
Wirebonding, spot welding, and other techniques were discussed quite a bit in this thread a while ago. VDX mentioned some experiments he did with ultrasonic wirebonding and pointed out several...
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Re: Grounded Experimental Delta Printer
@Annirak: So with a Wally-like arm drive you get near constant driving torque. With a PGDJ (Proportional Gear Drive Joint) you get a constant driving force on a line of action through the arm ends....
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Re: Grounded Experimental Delta Printer
I see Annirak's point and he's right, IMO. I draw a (very ugly) diagram explaining my point of view on that torque issue. And even though, I consider the improvements suggested would make the arm...
View ArticleRe: Grounded Experimental Delta Printer
nicholas.seward Wrote: ------------------------------------------------------- > @Annirak: So with a Wally-like arm drive you get > near constant driving torque. With a PGDJ > (Proportional...
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