I've never experienced the effects of resonance that Nophead wrote about because I use firmware with acceleration. So if its an effect of resonance and you don't want to go through the hassle of editing the G-code, I would change to a firmware with acceleration. At the moment I believe you have two choices: Teacup Sprinter . I would consider both still under development and you may still f
Forum: General

NelsonRap Wrote: ------------------------------------------------------- > However when it got to the layers where the > horizontal holes are (the bolts with springs on go > in these holes) the extruder looks like it has > either moved sideways a fraction or shrunk at > those layers, i'm not sure which has happened and > clear PLA doesn't photograph well. > > I thought I
Forum: General

SebastienBailard Wrote: ------------------------------------------------------- > I'm documenting the entire build this time > > Hmmm ... want to do it up in the > Plumbstruder wiki page? That should not be a problem. Is there a template I should use?
Forum: General

I mentioned how I did it in the notes at the very bottom, but here it is again. All holes were drilled using a cordless hand drill. The hollow brass bolts were made by spinning the bolt in the drill while holding the drill bit with pliers. (0.4mm hole drilled while holding the bit in my fingers) A similar technique can be found And this is how most repStrappers are building there wades. (incl
Forum: General

Removed, I recommend buying a J-head or Makergear hotend now.
Forum: General

nophead Wrote: ------------------------------------------------------- > Yes the thread is definitely 1BA. Good to know. It has also allowed me to figure out that it is called a Type A Jet and there is a Type D jet that uses 1/8"BSP thread which would be much easier to tap for most people.
Forum: Plastic Extruder Working Group

This should help
Forum: Controllers

I'm not sure that is correct. I believe I have read a thread somewhere mentioning not all transistors are capable of running at the frequencies required for PID. A tip120 I believe is only good for bang/bang control. You may want to start a thread in the general electronics forum to confirm.
Forum: RAMPS Electronics

Not sure if you have spent the time to read through all of Nopheads blog. I highly recommend taking the time to read every page twenty times. As always he's taken the time to document his experiences, tests and failures. PLA on glass. I ended up building a variation of his hotend design called Plumbstuder and it works a dream.
Forum: General

NelsonRap Wrote: ------------------------------------------------------- > So once the extruder is up to temperature, you > then start the print. Will be giving that a try > later (cooking dinner at the moment). I have raft > enabled anyway as someone on IRC told me it would > be best to but I don't actually fully understand > it all yet. What temps do you extrude at as a bit &g
Forum: General

Yes I use the temperature settings and have found them to be very important. Raft has to be enabled for the temperature settings to work, but you can set the raft's (integer) values to 0. I found that testing the minimum temp I could extrude at and then use 20degrees hotter for the first layer and 10degrees hotter than minimum for the rest. I have the support set at the minimum but haven't tried
Forum: General

It has to be the blue painters tape from Scotch / 3M, not sure why but after hundreds of test by the community over the last few years it is clear that its the one that works. (see picture attached) Here's a link to Nopheads findings on the subject
Forum: General

Have you tried printing on Blue painters tape? The attached picture shows a gear I printed with PLA on blue painters tape without a heated bed. The straight edge shows how flat it is in the worst direction.
Forum: General

If you looked through the rest of the ramps forum you would see this MTP30N06 mosfet instead of STP55NF06 as the title to this thread
Forum: RAMPS Electronics

Architect Wrote: ------------------------------------------------------- > AHHHHH! calibration cubes!!!! I am having > nightmares with being attacked by cubes!!! > Lol looks like we are about the same based on cube > output. I get pretty good results from things that > don't have many tight corners. > But the corners if these dame cubes and also > bridging is driving me nuts
Forum: Firmware - experimental, borrowed, and future

@Architect Glad to hear we came to the same conclusion. I notice that my fillet radius is double that of yours and may be why mine look slightly less bulgy in the corners. I have not eliminated the blobs entirely either and I think the new acceleration algorithm they are working on should help with this. I also think that having my E_startstop_steps set to 10 may help, so something even higher m
Forum: Firmware - experimental, borrowed, and future

Sorry for misspeaking earlier I was on my way out the door. For a pre-compiled version of Ben Jackson's ReplicatorG to work with teacup go here Then take the latest Commit of teacup and try and get it working WITHOUT hardware end stops. Once you get all the axis moving in the right direction you can try turning off the software limits and turn on the endstops. It is really hard to debug issues
Forum: RAMPS Electronics

I had/have the same problem with blobby corners and the way I dealt with it was to use the fillet modifier to cut the corners slightly. I did it that way as opposed to using oozebane which allows you to stop your extruder before the corners because oozebane adds more lines of code which slows down the machine. I also have acceration set to 250000 from the original 500000 because of how slow it ma
Forum: Firmware - experimental, borrowed, and future

Misspoke.
Forum: RAMPS Electronics

sliptonic Wrote: ------------------------------------------------------- > Anyway, it seems that Teacup doesn't like negative > values in G92. I can work around it by moving Z > up to 1.9 and then doing a G92 Z0 so it isn't a > big deal. Just thought I'd mention it in case I'm > doing something incorrectly. Its because you have the soft limits of Z set to min 0, just set your Z
Forum: Firmware - experimental, borrowed, and future

jcabrer Wrote: ------------------------------------------------------- > I'm a little lost on the last bit you mention > about MIN/MAX limits. Where is that set? Skein > Forge/GeplicatorG/Firmware? Sorry I didn't read this the first time. This would be set in the firmware. They are called "soft limits" usually and can be disabled when using limit switches. But from my reading, switc
Forum: RAMPS Electronics

cloudmaker Wrote: ------------------------------------------------------- > Here you can find the settings I'm using > > > S Why do you have Xon/Xoff enabled while using RepG? What are your acceleration settings? Your reprap.xml does not have any of Ben's teacup modifications implemented.
Forum: RAMPS Electronics

It seems that everyone is looking for some pre-configuration to start off with. I have created just such a thing for everyone to try. I was planning on releasing this information after all my testing was done, but due to a faulty pololu driver my machine is out of commission for a while. I have written a quick over view of my settings here and have a down-loadable set of Skeinforge profiles an
Forum: RAMPS Electronics

It seems that everyone is looking for some pre-configuration to start off with. I have created just such a thing for everyone to try. I was planning on releasing this information after all my testing was done, but due to a faulty pololu driver my machine is out of commission for a while. I have written a quick over view of my settings here and have a down-loadable set of Skeinforge profiles an
Forum: Firmware - experimental, borrowed, and future

Is it Mandoline?
Forum: General

sliptonic Wrote: ------------------------------------------------- > The only thing that > stands out to me is the leading 'ok' on the output > line in klimentkip and on a separate line in > teacup. Sounds like the latest commit of teacup (fixed temperature reading problem where ReplicatorG would freeze because there is no newline before the temperature prints out...) but if you read
Forum: Firmware - experimental, borrowed, and future

It looks like the bed temp is showing up in both log files. Can you set the temp in the control panel and have it heat up, and you are just not getting any feedback through the control panel? In reprap.xml set your debug level to "2" In repG's preferences turn debug to "all" This will give a little more info from teacup at least.
Forum: Firmware - experimental, borrowed, and future

Sorry I was thinking a tapered hole not just a counter bore. So yes they have a larger opening in the back.
Forum: Plastic Extruder Working Group

Removed comments after uploading a new version see comment below.
Forum: RAMPS Electronics

jcabrer Wrote: ------------------------------------------------------- > For the MEGA 1280, I don't know what your trouble > might be caused by. My MEGA 1280s work with > ubuntu and RepSnapper just fine. They are Chinese > knock-offs, so the are better quality :^) I > guess. You may be right, I have a real 1280 and it drops the o from ok all the time while using repG > I tr
Forum: RAMPS Electronics