Re: Grounded Experimental Delta Printer
I don't see anything obvious. I know it's extra weight, but Johann is moving from a bowden tube to an on-hotend extruder drive for Kossel because of the quality of the print. It's a consideration. I...
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I would definitely rather not have a bowden tube. A local company, QU-BD, is making a printer with a 170g complete unit. I am a high school teacher and our school was in the market for a printer. I...
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I am not giving up on Bowden just yet. The latest version of Slic3r has quite a couple of quality enhancing features built in, and the prints I am doing today are not displaying the endless oozing and...
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I think I may have an optimization for your design, which also gets rid of the arccos. I was thinking about the wheels impinging on the work area and I have an idea which will replace them with a pair...
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Annirak Wrote: ------------------------------------------------------- > I think I may have an optimization for your > design, which also gets rid of the arccos. I was > thinking about the...
View ArticleRe: Grounded Experimental Delta Printer
qharley Wrote: ------------------------------------------------------- > I am not giving up on Bowden just yet. The latest > version of Slic3r has quite a couple of quality > enhancing...
View ArticleRe: Rostock endstops being weird
Many thanks Andrew; it does look as though the endstops are now reacting. I suppose it serves me right, buying a board with no instructions. The Min pins were marked 'X', 'Y' & 'Z' 'endstop's. The...
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Re: Grounded Experimental Delta Printer
Okay, this is going to be a long post. I should make clear before I go any further that this didn't work out quite how I wanted. I was looking for a simple geometry that would work along the same...
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My bowden is currently about 60cm, thats 24inch. I could probably make it a bit shorter, but it works for me.
View ArticleRe: Rostock endstops being weird
The RAMPS documentation is on the wiki if you have any more problems, its one of the better documented sets of electronics.
View ArticleRe: Grounded Experimental Delta Printer
Annirak Wrote: ------------------------------------------------------- > Okay, this is going to be a long post. > > I should make clear before I go any further that > this didn't work out...
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Re: Grounded Experimental Delta Printer
I have been working hard on the 2nd major redesign of Simpson. The design will utilize Annirak's genius. If you look at his first diagram, I will have a block and tackle setup along B and an extension...
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Re: Grounded Experimental Delta Printer
I must have been feeling pretty dense last night. I missed an obvious simplification of the math. We left off at: Well, so... Which reduces easily to: Similarly, Looks like I did simplify the math for...
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Well, I rigged up a test with meccano. It looks like the spring is going to be a problem. A constant-force spring would solve the problem nicely, though.
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Annirak Wrote: ------------------------------------------------------- > Well, I rigged up a test with meccano. It looks > like the spring is going to be a problem. A > constant-force spring...
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The problem with the spring is just the range of force required to move it. When the arm is at either extreme, the line is short and the spring is compressed. When the arm is in the middle, the line...
View ArticleRe: Grounded Experimental Delta Printer
Annirak Wrote: ------------------------------------------------------- > The problem with the spring is just the range of > force required to move it. When the arm is at > either extreme, the...
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Re: Grounded Experimental Delta Printer
I have been agonizing over the extruder setup as of late. I have been waffling between 3 options: 1) Bowden, 2) Lightweight all-in-one unit, and 3) Flexible shaft driving a hobbed bolt on the...
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