Re: New arm design for Simpson style printer.
Quotenicholas.seward If I was to give up on the tuners I would want something equally hassle free. Ideas? This has probably come up elsewhere in the discussions, but just in case... A looped zip-tie...
View ArticleRe: New arm design for Simpson style printer.
That is not a bad option. You could use the same zip tie for a very long time. Anybody see a reason why I shouldn't use this solution?
View ArticleRe: New arm design for Simpson style printer.
@Nicholas, Zip tie looks OK, but I don't like the idea of tugging against the device to tighten it. A SHCS, and nut with a hole through the head of the screw. Turn the screw to take up the slack, then...
View ArticleRe: New arm design for Simpson style printer.
Carbon fiber string. Possible ? [youtu.be] nicholas.seward Wrote: ------------------------------------------------------- > For a standard Simpson it is potentially bad. It > could possibly...
View ArticleRe: New arm design for Simpson style printer.
@A2: I would prefer not to drill into the head of a SHCS. Can you give me more info on how you see the leaf spring working? And the cam? I want the setup to be stupid simple. @Buytaert: I would have...
View ArticleRe: New arm design for Simpson style printer.
String crash, Install an optical sensor around the string to detect it's disappearance. Micro switch pressed against the string. Optical CCD mouse camera could be used for crash detection.
View ArticleRe: New arm design for Simpson style printer.
@Nicholas, I didn't think any one would consider building a Simpson this big, I was wrong :) I've been designing a 9' 6” long print envelope, which requires about 16' long arms. Clues of it being...
View ArticleRe: New arm design for Simpson style printer.
Not to derail this thread...but... the current plan is to have a platform for each shoulder that you just stake into the ground. (You can have strings that you stretch tight to get the optimal...
View ArticleRe: Grounded Experimental Delta Printer
I changed my mind about a dozen times, but here is my addition to the project: [www.youtube.com] No belts or cables and no odd shaped gears.
View ArticleRe: Grounded Experimental Delta Printer
So this can be simplified even more. You can remove the need for the springs by adding a stopped to the end of the rack gears and then putting them in a sleeve past the arm. This means the gears would...
View ArticleRe: New arm design for Simpson style printer.
I posted this on the other thread, but I thought I would put it here as well: I changed my mind about a dozen times, but here is my addition to the project: [www.youtube.com] No belts or cables and no...
View ArticleRe: Sextupteron
I finally had a few minutes to run a test on the holding strength of the .5" neodymium magnets. Have a look at the photos you can see the test revealed holding strength of 2174Grams. Danny neodymium...
View ArticleRe: RepRap 3DR Delta printer Released
Thanks for the replies. pokey9000, yep at the time I was setting bed temp to 80C (approx 70C Glass surface temp) for the first layer, then knocking it down to 60'ish (~50C surface). It was the temp I...
View ArticleRe: Rostock Problems with X/Y Movement Stuttering
bkapps Wrote: ------------------------------------------------------- > I found that lowering the > DELTA_SEGMENTS_PER_SECOND to 100, changing X, Y > and Z acceleration to 10000, and lowering...
View ArticleRe: New arm design for Simpson style printer.
Definitely interested in the large format Simpson thread. I have been working through large nozzle garage-scale designs with vehicles in mind..
View ArticleHow to get a Free Kossel
Didn't see anyone here discussing the pay it forward movement by Johann where you can get free kossel parts. Quite a good way to spread the popularity of delta robots, if not already popular enough....
View ArticleRe: RepRap 3DR Delta printer Released
Finally a space saving printer to build......Thank richrap.
View ArticleRe: Rostock Problems with X/Y Movement Stuttering
Delta segments per second 100, max acceleration 4000, Max speed 200, no oscilations noticed so far. You did not specify segments per second. Lets say it 100. Then your maximum segment size is below 3...
View ArticleRe: idea: forklift arms for delta arms?
I indirectly work with forklifts, the biggest issue I can see is that they tend to be hydraulic lifting, and gravity descent, which may not be ideal, and there may be issues with the y direction...
View ArticleBed levelling on a Delta system, possible alternative?
OK, I will start from the thought that maybe we're trying too hard to get the level sensing by using switches and probes and the like. Working from the premise that the bed is a piece of aluminium or...
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