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RepRapPro's Ormerod http://reprap.org/wiki/Ormerod
Re: Circles not coming out Circles - 13 years ago
shek Wrote: ------------------------------------------------------- > I spent over a decade as a machine control > technician for a jet engine company (no > Honeywell). I don't think there was a single > machine that used a stepper motor if positional > accuracy was the goal. Most were brushed DC with > integral tach and either a rotary encoder or > linear encoder (glass slby NewPerfection - General Mendel Topics
Re: Building a mendel - 13 years ago
My layers bond pretty well. I measure temperature at the nozzle. I may try increasing temp to get better prints though, I'm still experimenting with my new hot end. It's also possible that my thermistor table doesn't exactly match the thermistor I have.by NewPerfection - Reprappers
Re: Questions about Elapsed printing time - 13 years ago
A small disk like that shouldn't take more than 45 minutes to print, but it depends highly on the nozzle size and print speed you use.by NewPerfection - General
Re: Aluminium insulation retainer for sale - 13 years ago
EngPrint Wrote: ------------------------------------------------------- > Seeing that this post has failed to spark any > orders Seeing as most people here have RepRaps rather than MakerBots, this does not surprise me. The variable nozzle is interesting though. It gets proposed all the time but no one has been able to make one that works so far. Do you have a working prototype?by NewPerfection - For Sale
Re: repsnapper and mega 2560 - 13 years ago
Not sure why, but I've found that RepSnapper will connect to RAMPS perfectly after a fresh restart, but not after connecting with the Arduino IDE. I'm running Windows 7, what OS are you using?by NewPerfection - RepSnapper
Re: Extruder flow rate limitations - 13 years ago
Here's a printer doing 300 mm/s with PLA:by NewPerfection - Plastic Extruder Working Group
Re: Building a mendel - 13 years ago
I extrude PLA at 175c. I think it depends on the exact PLA you have. kitsamus, what bed material are you using?by NewPerfection - Reprappers
Re: Crazy Extruder Nozzle Idea - 13 years ago
They need to be all metal, and the narrow end needs to be very short, ~1mm. Otherwise the pressure needed to extrude gets very high. It is possible that they could work though.by NewPerfection - General
Re: How thin can vertical walls be? - 13 years ago
I am able to print 0.5mm wide walls easily, I am using SkeinForge though. Not sure how the RepRap host handles very thin walls, but they shouldn't cause an issue.by NewPerfection - General
Re: PCB size and component size - 13 years ago
For making the board yourself, I would definitely recommend going with RAMPS.by NewPerfection - Reprappers
Re: Skeinforge strips extruder code from my end.gcode - 13 years ago
Why not just add a retract distance under Dimension? (Assuming you're running a stepper extruder of course.)by NewPerfection - Skeinforge
Re: Getting gears off these motors I bought - 13 years ago
They're probably attached by using heat, as in heating up the gear so that it expands and then pushing it on the shaft where it contracts. You should be able to use a vise and punch like you were saying, Just give it a bit of force, you aren't going to hurt anything that way. Prying against the motor casing is likely to damage the shaft inside the motor or pull it out completely.by NewPerfection - Stepper Motors, Servo Motors, DC Motors
Re: Nichrome wire question - 13 years ago
You want something around 30 gauge to get a short enough length.by NewPerfection - Reprappers
Re: need help with skeinforge! - 13 years ago
RepSnapper displays the gcode as a tool path in the main window, so you can see where it's going to build even if you just load gcode. However, like rhmorrison said, you need to activate the "Multiply" module in Skeinforge. Set the center X and center Y to whatever the middle of your build platform is, and set number of cells to 1 for rows and columns. You can later set those to bigger numbersby NewPerfection - Skeinforge
Re: Wade's extruder stalling - 13 years ago
Check where the top of the barrel meets the PTFE. Unless the PTFE is well constrained it will tend to expand and allow plastic to leak around the threads, as well as push the barrel out slightly. This can cause a plug to form at the top of the barrel and won't allow plastic to flow well.by NewPerfection - General
Re: Homing all (RepSnapper) - 13 years ago
Yes, but normally when you want to home the axes there is nothing in the way, so the homing order does not matter. (Hopefully you removed your previous print before starting a new one?) With milling the order of homing becomes more important because you don't want your mill to crash into the material to be cut.by NewPerfection - General
Re: Saving Repsnapper Printer definition? - 13 years ago
You can at least modify the settings .xml file directly, though that is a bit of a pain. That's what I did to get it to save the port, etc.by NewPerfection - RepSnapper
Re: oozebane - 13 years ago
Most people in this community use stepper extruders, which can be more precisely controlled. When I was using an MK4 extruder with PLA I was able to use oozebane without issue, although it would cause a little more droop on bridges.by NewPerfection - Skeinforge
Re: oozebane - 13 years ago
I don't think there's a way to do that in SkeinForge. Also, Extruder Retraction only works for stepper motor extruders.by NewPerfection - Skeinforge
Re: Issue with negative movements - 13 years ago
Change the inverting option in the firmware for the axes that won't go in the negative direction. Also, if you are using the host software it will not allow movements negative of 0 from the control panel.by NewPerfection - RAMPS Electronics
Re: Software for huge reprap - 13 years ago
Using 1/4-20 rod is incredibly slow. I had them on my McWire for a short while before converting to belt driven.by NewPerfection - General
Re: Software for huge reprap - 13 years ago
The software and firmware can pretty much handle any size. The only issue is if you use microstepping, where the number of steps to reach the extremes could possibly be too big for the firmware to handle, though I'm not totally sure on that.by NewPerfection - General
Re: Help: skeinforge refuses to raft this part - 13 years ago
nophead Wrote: ------------------------------------------------------- > I could be wrong, but I don't think SF cares about > the normals. I didn't think it did either, but I've gotten some weird slices in SF with bad STL's. It'll still slice them sure, but the results may not be what you expect.by NewPerfection - Skeinforge
Re: Help: skeinforge refuses to raft this part - 13 years ago
Sounds like something wrong with the STL. I imagine the mesh has holes and wrong normals, making Skeinforge flip out. It must be bad because Skeinforge can usually handle pretty crappy STLs. Also, others report that missing hole for that STL too.by NewPerfection - Skeinforge
Re: Techzone thermocouple Help - 13 years ago
RepSnapper and RepRap host use different temp reading methods. You can't use the official 5D firmware with RepSnapper. You need to use triffid_hunter's firmware or similar, such as 5D on Arduino to be able to use RepSnapper.by NewPerfection - General Mendel Topics
Re: Homing all (RepSnapper) - 13 years ago
You could just write a simple g-code to do it and save it under one of the custom buttons.by NewPerfection - General
Re: Arizona RepRap User Group Kick Off - 13 years ago
I wish it wasn't so far from Prescott, or I'd be there all the time :-( I have a working repstrap printer right now, am just in the middle of upgrading the electronics to RAMPS and the extruder to be stepper driven (in place of my old MK4).by NewPerfection - Arizona, Phoenix RepRap User Group
Re: Request Sample - 13 years ago
That actually looks very nice! I think you're right that with a .25 mm or so nozzle and a small melt chamber you could probably print the spines very nicely.by NewPerfection - Reprappers
Re: Where to get stepper driver motor PCBs - 13 years ago
I would definitely recommend the Pololu stepper drivers. They are fairly inexpensive at only $15 or so a piece. Only down side is that the driver chips are so small that they need heat sinks to dissipate the heat.by NewPerfection - General