Re: Deltas: Kossel versus Rostock MAX versus Cerberus versus Kossel
[groups.google.com] This is probably the best place for Kossel support at the moment.
View ArticleRe: Grounded Experimental Delta Printer
Watching the videos of the arm in action again and I can't help but think that this arm/leg design that eventually gives us a workable bot that can walk and print.
View ArticleRe: Grounded Experimental Delta Printer
QuoteBuytaert I don't know programing, but there's a thing called Parallella that look interesting : [www.parallella.org] I have a couple of those ordered. They certainly have the processing power,...
View ArticleRe: Grounded Experimental Delta Printer
If we are talking about responding to oscillation, I think the better first focus is on milling techniques that minimize it? The negative of a lightweight head for milling is high oscillation...
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Re: New arm design for Simpson style printer.
3M Anti-Slip Tape will be a test substitute for the herringbone gear. The lateral, axial, rotational grip seems adequate. I think a coarse sandpaper could be substituted. 4” inch wide by 12” inch...
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Re: New arm design for Simpson style printer.
A few more tensioner ideas: Belt Tensioner for printrbot GO - Y axis By ei8htohms, published Aug 18, 2013 [www.thingiverse.com] Belt terminator By chowderhead, published Nov 24, 2012...
View ArticleWavy sides, Repetier, original style Rostock
Puzzled newb here. Finally getting respectable prints out of a 2 week old Rostock. I'm having trouble (or not... perhaps I'm being anal...) with the sides of straight prints. In this case, a 25mm cal...
View Article3DR Part Sourcing
Hi, I've built two 3D printers from kits, and now I'd like to build a RichRap 3DR delta printer from scratch. My question is about sourcing of the smooth rods. I have two questions: 1. Do these need...
View ArticleRe: 3DR Part Sourcing
The smooth rods don't need to be stainless. However, getting hardened rod (not cheap drill rod) is a good idea. Cheap drill rod will end up with grooves in it from the linear bearings, and tends not...
View ArticleNeed help setting up new large scale delta 3d printer
Hey there. I have just finished building the large scale 3d delta style printer, but am having some trouble with firmware setup. I am wondering if there is anyone out there willing to help a new guy....
View ArticleRe: Wavy sides, Repetier, original style Rostock
It is not related to delta segments per second, the period of the waves is about 3 mm which is too small for that. I read somewhere that small waves can be caused by pulleys which do not match belt....
View ArticleRe: Wavy sides, Repetier, original style Rostock
I noticed that the wave pattern didn't seem to exist on the bottom few layers... I'm going to print another one today with octagonal infill turned off... I'm thinking perhaps the infill distorted the...
View ArticleRe: 3DR Part Sourcing
Thanks NewPerfection. Now for my next question. I'm thinking of switching the rods from 6mm to 8mm for two reasons. First, I'm planning to use the parts from my Printrbot Simple to build the 3DR, and...
View ArticleRe: Rostock Smooth Steel Rods
The cheapest 3/8 linear bearings I have found are from mcmaster and they are $22.14 a piece part #60595k12, So I guess the money saved on inch rods isnt really worth it unless you use brass bushings.
View ArticleRe: 3DR Part Sourcing
You can get cheap ones from China that usually work pretty well. See: [www.ebay.com] Or VXB has LM6UU's for less than $7 each: [www.vxb.com] Going to 8mm rods and LM8UU's is another option, just make...
View ArticleRe: Rostock Smooth Steel Rods
You could go with plastic linear bearings for $5. If you are willing to throw some efficiency away, you can use these. I have used these style bearings on my 2'x2'x1' envelope hobby mill for 5 years....
View ArticleRe: Rostock Smooth Steel Rods
Nicholas.seward do you have any type of wiper on those bearings or do the grooves in the plastic bearing itself wick away the dust and debris? Do you need to apply any oil to the rods? Also could you...
View ArticleRe: Rostock Smooth Steel Rods
I don't use a wiper. You need the rails to stay dry so lubricant will actual make matters worse. Depending on the load and the rotational speed you might get some chatter from the fins. (I don't think...
View ArticleRe: Need help setting up new large scale delta 3d printer
Have you thought about adding some structural supports to the frame? I am assuming that you are using 8mm smooth rods and some lm8uu bearings and it looks like the smooth rods are the only support...
View ArticleRe: Need help setting up new large scale delta 3d printer
You bet I have thought about it. Lol. I will be making a wall hung shelf specifically for the delta, and it will be fixed to the shelf at the bottom and attached firmly to the wall of my garage at the...
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