Re: Temperature drop from 208 to 195
Ofc there are better things for ~250C, like using matched pairs of hermetically sealed thermistors, and there are other sensors like RTC (Pt thin film), thermocouples, etc. But we reprapers are...
View ArticleRe: Temperature drop from 208 to 195
OKay I will keep it in mind, I am looking for another hotend anyway, this one sucks and I have seen reasonably priced ones on Ebay, are there any not so crazily expensive ones you can advise me? I...
View ArticleFirmware to drive X-Y galvanometer
Hi all, I'm working on an SLA printer, using a laser diode instead of the DLP method that many are using for UV-curable resins. I'd ideally like to use an X-Y laser galvanometer for the setup, instead...
View ArticleRe: Temperature drop from 208 to 195
I dunno what to tell you, i cant take decision for you. Imo, at least your hotend doesnt leak, and seems to insulate well to the upper part. Which is more than we can say about others. Regarding...
View ArticleRe: Firmware to drive X-Y galvanometer
I'm not so familiar with SLA, so you will have to explain a few things. How long does the laser need to be in the same spot, ie. what is the cure time? Galvos are used in laser shows because they need...
View ArticleRe: Two power supplies in parallel?
You have to have two power supplies which having same parameters other wise parallel operation may caused damages
View ArticleRe: Firmware to drive X-Y galvanometer
Here's a good (real time) video of the SLA process. The laser moves quite fast in comparison with even the fastest delta or cartesian bots. Energy levels for cure are usually around 500 to 3000...
View ArticleReprap Arduino Due Shield project - looking for helping eyes.
I don't think anyone is working on a shield for Arduino Due yet. So I am making one - so far I made the schematic, and placed everything on a 4" * 3.2" board and started routing. Schematic Here:...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
Sure, this has been discussed before, I have been working on it for a while, progressing slowly. Search for "RAMPS for Due". Also [reprap.org] I am not getting the impression people are very...
View ArticleRe: Firmware to drive X-Y galvanometer
Ok, the cure time per spot is a LOT faster than I was thinking! I can see why galvos would be preferred. I came across this page which looks pretty interesting [elm-chan.org]. He is using 12 bit DAC...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
Wow. My google-fu must be not good enough, didn't find this page before! There are some philosophy differences between our designs, which is good - diversity is good. (tu) Good job. Mine is trying to...
View ArticleRe: Firmware to drive X-Y galvanometer
I've been looking at similar setups off of ebay as well. After some more digging, I found the ILDA specifications here (PDF link). The "show card" basically looks to be a card with various...
View ArticleRe: Firmware to drive X-Y galvanometer
rskelton Wrote: ------------------------------------------------------- > I've been looking at similar setups off of ebay as > well. After some more digging, I found the ILDA > specifications...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
Yeah, I was trying to keep close to RAMPS compatibility with minimal changes, but I now realise there will be too many small differences to make it directly compatible. Given that the software will...
View ArticleRe: Firmware to drive X-Y galvanometer
Curse and/or bless you and your powers of coding! With regards to the laser power, galvos are usually made for laser shows, so they can generally handle whatever you can throw at them. A glass mirror...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
I know of a number of companies who are building boards that break out the SAM's on-chip Ethernet, and use one of the many unused on-chip SPI buses. Some of these sit over the chip itself (and have...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
Thanks for your input, Cefiar. I should spend some time reading your historical post and learn from them. It would be even nicer if you could sum them up for me again =) So instead of PTC, you prefer...
View ArticleRe: Temperature drop from 208 to 195
For now I have discovered that the thermistor is seriously giving out too low readings, this can also be due to the construction of the hotend, so I blame that, not just because it's easy to blame the...
View ArticlePossible delta printer with gen 6
I want to build a 3d printer. To be precise a delta style printer based on the kossel and rostock design and i can get a used gen 6 board for the great price of nothing and was wondering if i can...
View ArticleRe: Reprap Arduino Due Shield project - looking for helping eyes.
I'd link to the forum post I recently posted in the RAMPS sub-forum about 24 Operation (look for a thread called 24V with Ramps 1.4 questions), as the forum thinks that this post is spam when I try....
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