Thanks for putting up the instructions. I'm wondering what the advantage is for making the nozzle out of an acorn nut or gas jet nozzle vs simply boring out the threaded rod?by HereinCS - General
If you don't mind; 1. Doesn't black PEEK have 5x the thermo conductivity of plain PEEK? Would your heat issue be lessened with plain PEEK? 2. I like the look of black PEEK, but plan to use a PTFE liner to lessen the heat transfer. Was there a reason you didn't use the teflon liner?by HereinCS - General
Yes. Similar to that. Do you have any problems with the threads leaking? Does the PTFE to all the way down to the tip or just to the end of the PEEK section?by HereinCS - General
That's interesting. Due to the slight expansion of the PEEK, it's better to screw Peek into metal rather than metal into PEEK? That seems like good advice.by HereinCS - General
I'm thinking of using an m4 thread for the hot end and screw that into a peek rod. Is it too small? Should I go with m6?by HereinCS - General
I'm curious, why do people use halogen projectors for these processes rather than LED? Is it the brightness or color spectrum?by HereinCS - Polymer Working Group
Aren't all 3D printers some sort of cartesian robot?by HereinCS - General
wow. Great picture. I think Andrew's right about the range of your camera. I'd like to see a photo of your extruder. Looks like there isn't any heat dissipation going all the way up.by HereinCS - General
The up machine uses a lower voltage heater. I just happen to have a 120v heater sitting around to play with. Perhaps I'll buy a lower voltage one.by HereinCS - General
Neater looking. Very similar to that on the Up! machine. More reliable. No shorting issues, etc. Can heat to much, much higher degrees, potentially more flexible for other materials.by HereinCS - General
I'm using a small cartridge heater. It's meant to run at 120ac, I tried it at 36v DC. It does get hot, but not 260' hot and is so slow.by HereinCS - General
My heater is not heating up much at all at 12V. I'm going to buy a nozzle heater that runs at 120v AC. Can some one help me with this question? My understanding is that the makerbot extruder control takes info from the thermocouple and switches on and off the 12V dc to make the nozzle hotter or colder. I was wondering if I can us this output to control a solid state relay such as: It takeby HereinCS - General
I'm curious if a thermocouple such as the type K in the Makerbot can be cut and rejoined. I want to make a quick connect for this thermocouple using a DC male/female connector set. I'm just wondering if the different metal that is in the DC connector will mess up the thermocouple readings. Thanks.by HereinCS - General
Have you looked at the Up!? Seems like a great printer. Software is great. Does anyone know who makes Up's software? Can it be bought separately?by HereinCS - General
So automatic tool change or manual tool change? Manual would be super easy. Automatic would be incredibly costly.by HereinCS - General
I'm curious, I've read several posts that people want the ability to change tools in future reprap versions. Does this mean that people want to change filament colors or do they want to change from extruding to milling, etc?by HereinCS - General
I have a makerbot electronics set as well as a reprap verson 6 coming in. I'm trying to understand how the extruder board functions. It takes a temperature sensor in, then output some voltage right? How much voltage does it put out and at what current? Can this current drive a solid state relay? Thanks.by HereinCS - General
Yes, it does include an Arduino mega. Please understand that there maybe something wrong with the motherboard. I have no experience so i can't test these things. I paid $$280 for it a couple of days ago, If you understand the technicalities of these things and want to take a chance, I'll sell it for $210 shipped in the US.by HereinCS - For Sale
I bought the latest mb, 3 stepper drivers, 6 mech limit switch from this ebayer. The motherboard won't turn on unless I use a jumper between the black and green power supply leads. The seller also sent me an email stating that there is one connector wire that was omitted, should be an easy fix. All this is too much for me, so I'm selling the entire package in favor of Reprap gen6 package. Iby HereinCS - For Sale
Thanks. That helps a lot. I have the makerbot electronics set, perhaps I'll go for the Gen6 hardware to have a more elegant all in one solution. Before I buy it though, can you help with a few more questions: 1. I'm using a different heater design to heat up the plastic. I'm not sure how the extruder function works on these boards....there is a thermocoupler that goes back to the board, theby HereinCS - Controllers
I was under the impression that Reprap and Makerbot electronics are the same....but looking at the reprap gen6 electronics...it's not based on arduino is it? Am I wrong?by HereinCS - Controllers
Thanks guys. I found some and they are on their way. I do have a question though. I have my motherboard and arduino mega plugged together. I plugged in a 20 pin atx power supply.....and nothing happens. No lights, etc...what's going on?by HereinCS - Controllers
What's 5kg/cm converted to oz/in?by HereinCS - General
I bought a makerbot 2.4mb and drivers from a seller in europe. The board arrived with the components, but does not look anything like the blue boards the makerbot sells. It also didn't come with connectors. So much for saving a few bucks. I'm looking for a 6 pin IDC pin that connects the stepper drivers to the mother board. And I'm looking for a connector that connects the stepper boards toby HereinCS - Controllers
What's a groovemount? BTW...does anyone know how much torque the step extruder motor has?by HereinCS - General
I've been waiting for the makerbot tip to become avail for a short while, and am losing my patience. Anyone know where I can buy them if not from makerbot? Thanks.by HereinCS - General
smallest one that I can afford is 1". At $47 from macmaster carr, it's a reliable clamp on solution. That does mean that I have to use a 1" tube. These goes up to 1500'f, an aluminum tube should be ok right? If not then I can make an aluminum sleeve over my existing 1/2' tube.by HereinCS - Plastic Extruder Working Group
has anyone tried a ring heater to heat up the extruder?by HereinCS - Plastic Extruder Working Group
I'm looking at some options for the extruder. What's the finest tip size that anyone's tried? Does the inner bore size matter much? thanks.by HereinCS - Plastic Extruder Working Group
Thanks. Sounds good. I'm going to do this using timing belt. I've never used timing belts before for a drive system, and it's always been a curiosity. Plus belts should be much lighter than ball screws and more accurate than lead screws. I have 3 nema23 mtors coming form Kelinginc either tomorrow or Monday. They will be perfect size for this machine. Walk me through the timing belt design.by HereinCS - Reprappers