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Re: LISA Simpson
@uncle_bob Tks! Anti Backlash Flange Nut: I'm thinking of ways to incorporate an anti backlash feature onto the Dia 3/4" x .50" lead screw flange nut. It might be possible to to thread the end of the...
View ArticleRe: LISA Simpson
I'm wondering if there is an even simpler (but more expensive) way to take care of the backlash (if it's even an issue). This monster may be heavy enough that it really does not have much backlash.:...
View ArticleRe: LISA Simpson
@uncle_bob: Backlash wasn't a problem for me. I think we should be in the mode of not fixing it until we see artifacts from it. The two nut idea will work but you have to be careful where the springs...
View ArticleRe: LISA Simpson
I don't really expect to run this beast at 2400 RPM. I believe that 100mm/sec is about as fast as you can reasonably print plastic. Yes, that's open to nearly infinite debate, and yes I have run a lot...
View ArticleLooking to build a delta - could use a bit of input
Hi all, I recently built a Prusa i3 (laser frame with the twelvepro frame sides) and whilst I like it as a printer, I'd like to build a delta based printer. I've not had the best of time with the i3....
View ArticleRe: Looking to build a delta - could use a bit of input
I would suggest that having two printers is a pretty good idea. Until you get one fully running, you never know what you will need to fiddle with.
View ArticleRe: Looking to build a delta - could use a bit of input
Hi RickM I've just built a delta to my own design. I have previously built a Huxley and a 3DR. The 3DR is a super design but I found the build bed a bit small. There is a post with some pictures of my...
View ArticleDelta-Pi "Flexing" hub
I have my printer fully assembled but am seeing some odd behaviors I wanted to run by the other reprapers. Firstly, my hub-tri in the center does not lay flat, pretty much ever. It is always tilted to...
View ArticleRe: Looking to build a delta - could use a bit of input
As you look at Deltas be very sure you understand the print area and print height numbers for each design. A good way to sort them out is to figure out what the biggest cylinder is that you can fit...
View ArticleRe: Delta-Pi "Flexing" hub
Hi Beamsaber Those joints do need to be free to move but also need to be free from play. To achieve this can take a bit of fiddling with the clevis bolts and their nylock nuts. Make sure you make up...
View ArticleRe: Delta-Pi "Flexing" hub
Thanks Mike. I did a lot of work on these today and found several over-tightened joints as well as one rod where the epoxy did not take. I managed to rework two of three assemblies and will be...
View ArticleRe: Looking to build a delta - could use a bit of input
Thanks for the feedback so far guys - it's much appreciated. Now that I think about it, uncle_bobs recommendation to have two printers isn't a bad idea. I guess I can always sell off the i3, or strip...
View ArticleRe: Looking to build a delta - could use a bit of input
There are things that the i3 is adapted to doing, and things that the Delta should be better for. You see people doing tall print area Delta printers a lot. The i3 extruder and the Bowden tube on a...
View ArticleRe: LISA Simpson
Have you considered/tested larger nozzle sizes for your large format buildouts?
View ArticleRe: LISA Simpson
I have commisioned a 1.75mm nozzle and have found a supplier of 5mm filament. I can't wait for an excuse to use it.
View ArticleRe: LISA Simpson
I certainly plan on having a 0.6 mm nozzle handy. I'm not quite sure how well it will feed off of 1.75 mm filament. --------------------- Did some indirect digging on Marlin and the Wantai stepper...
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Re: LISA Simpson
@jason.fisher I'm going to try to use oval welding rod, it's really cheap, $7.03/lbs bulk! (tu) 5/32" (3.97 mm) 3/16" (4.76 mm) Extruder Drive Design Ideas for Inexpensive Oval Welding Rod...
View ArticleRe: Looking to build a delta - could use a bit of input
There's a huge installed base of Kossel builders - in fact, I'm aware of 7 (including 2 derivatives) within the local RepRap group. Yes, you'll have more calibration to do, but it's not that hard, and...
View ArticleRe: Delta-Pi "Flexing" hub
OK, I have a new problem. After I have repaired the arms, the hub is a LOT more level. I am however having a problem still. The Z floats downward as I issue movement commands. So if I send a +50X,...
View ArticleRe: Looking to build a delta - could use a bit of input
Thanks for your input brandonh. I did see that someone had added a heated bed to a Kossel, and it looked pretty simple - he provided the mounting brackets on thingiverse as well...
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