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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
How to learn to use OpenSCAD - 11 years ago
Sounds complicated as for me, a noob...by jpan - OpenSCAD
Re: Problem setting up - 11 years ago
I tried Printrun and Repitier-host. The seller said it might be a firmware problem. The softwares did not have any error hint. But whatever I told the machine to do, it doin't respond.by jpan - General
How to Use A Laptop PSU on Ramps1.4 - 11 years ago
Hi guys My ATX PSU might be broken, I do have some spare laptop PSUs, and I heard that a laptop PSU is actually able to run a RAMPs board. My question is: how can I do that? Thanksby jpan - General
Problem setting up - 11 years ago
Hi guys I'm trying to get my new Prusa Mendel 2 working these days. Now here's the case: I connected all those wires on the boards and PSU, but when I wanted to try a little bit, (the lights on Ardino board and RAMPs board were on, not now after I re-taped PSU's cables on RAMPs board) so I connected it successfully with Repetier-host software. And then there's a problem, the motors or the hotby jpan - General
Re: One Motor+Belt on Z-axis - 11 years ago
You are a pro! I love your machine! Absolutely a professional one. But I don't get how did you handle you belts. Did you use two pulleys on the motor shaft? My guess is like this: (Took me 5 mins to graph....phew....)by jpan - General
Re: Yes, 3D printers can go on fire. - 11 years ago
Why not just print a plastic container that can holds water and put it right above the RAMPs board? Just remember to unplug the PSU first when you see it's burnt?by jpan - Safety & Best Practices
Re: One Motor+Belt on Z-axis - 11 years ago
Did I guess the right way? Using friction to motivate does seems too reliable to me....by jpan - General
Re: 打印出来的模型高度有偏差如何调整？ - 11 years ago
如果你指的是“打印的物品中间是空心”的话，那属于正常现象。 如过特别需要材料实心可以调整设置by jpan - China + RepRap 用户组
Re: Rostock or Prusa i3 - 11 years ago
The electronics are similar I guess. The difference is firmware I assume.by jpan - General
Re: 打印出来的模型高度有偏差如何调整？ - 11 years ago
http://reprap.org/wiki/Triffid_Hunter's_Calibration_Guide]链接 直接跳到“E STEPS” 实在不行就给我拍一张挤出器的照片（如果你知道挤出器的名字的话更好）给你找一下标准值。 过程有点长，懒得翻译。基本上弄一个游标卡尺，和xyz轴都一样by jpan - China + RepRap 用户组
Re: fan mount mod - 11 years ago
Tell us the result, buddy. Can't see difference for me...by jpan - Look what I made!
One Motor+Belt on Z-axis - 11 years ago
Hi guys, I saw a design like this. As a noob I'm not really sure how it works. Note that there's only ONE z motor. I guess the guy pressed the belt pulley really tight with the nuts (and maybe even with threadlocker?) to try to keep it fixed.（maybe not） Can anyone tell me if it's worthy to do so? Is it reliable at all? Thanksby jpan - General
Re: Reprap in Hong Kong? - 11 years ago
57，42步进电机都可以，12v的电压都能用by jpan - Hong Kong RepRap User Group
Re: 打印出来的模型高度有偏差如何调整？ - 11 years ago
这样吧， 如果指令是10mm，它上升了6mm，你就先send gcode：m501，看到m92 z2000（打比方），就计算：2000（m92 值）/6（实际）＊10（预计）～＝3333.33（小数点后两位） 然后就m92 z3333.33 发出指令， 然后m500 确认by jpan - China + RepRap 用户组
Re: 欢迎来自中国的朋友都为 REPRAP 出一份力。 - 11 years ago
在美国Connecticut上学，来自成都 以前有一台printrbot，现在有一台reprap Mendelby jpan - China + RepRap 用户组
Re: What's better on z-axis? Belts or leadscrews? - 11 years ago
Seems like many people do so on Kickstarter.by jpan - General
Re: What's better on z-axis? Belts or leadscrews? - 11 years ago
Hum that's a pity. I'm curious. Are you guys who have your own design all professional? I mean, do you all have engineering background?by jpan - General
Re: What's better on z-axis? Belts or leadscrews? - 11 years ago
HI Sublime, So you are the creator of Tantillus? Why did you close your store?by jpan - General
Re: What's better on z-axis? Belts or leadscrews? - 11 years ago
I see.. In my case( Phoenix ) the carriage does drop but is not a big deal, right? I searched and found that Tantillus uses a leadscrew for z-axis. Maybe you got an older version? Anyways I guess I'll have to accept the resolution.. Maybe it's not that bad as I thought aha?by jpan - General
Re: What's better on z-axis? Belts or leadscrews? - 11 years ago
I have to say that it IS common to use belts for x-and y-axis, but it's my first time seeing a belt for z-axis. I check and find that the printers you said are using belts for z axis. But resolution is a big problem isn't it? Also when the motor is off, the extruder drops. similar topicI just found a topic in this forum that says the same thingby jpan - General
Re: What's better on z-axis? Belts or leadscrews? - 11 years ago
Well I thought there were two motor for z-axis. I think, a belt is not accurate enough to move z-axis.by jpan - General
What's better on z-axis? Belts or leadscrews? - 11 years ago
Hi guys, I just saw a 3DP with design using 2 stepper motors and belts to motivate the extruder, which means acting as z-axis.(the machine is called Phoenix) It sounds strange to me though. Feels like it's VERY likely to slip. What do you think?by jpan - General
Re: Which power solution to use? - 11 years ago
Hello, bobc Thanks for your easy guide, but a RAMPS 1.4 board does have four "spots / terminals" for power, two pairs of "+ and -".... I know some kind of electronics only have two "spots" (+ and -)for power source. What if I want to use a RAMPS board?by jpan - General
Re: Which power solution to use? - 11 years ago
So, what I should do, according to the link, is to cut all the wire and bundle wires of the same color together, and then connect +12v wires, -12v wires, +5v wires -5v wires to the board, right?by jpan - General
Re: Which power solution to use? - 11 years ago
Hello, guys Here's a new problem: How can I get a PSU with wires like these to work on a RAMPS board? Thanksby jpan - General