Check out Toms Hardware YouTube video about choosing bearings. He explains the pros and cons of both bearing and polymer bushings it might help make up your mind.by Rlewisrlou666 - Reprappers
Thanks for the info I was just thinking of having a more precise jet of air directed to the nozzle. Maybe a 2 into 1 duct that blows directly down between a dual extruder setup would be better.by Rlewisrlou666 - Reprappers
The problem isn't with the hot end but after reading it sounds like you are trying to use 3mm filament in a hot end designed to run 1.75mm? The only way is to drill out all the way down through to the Nozzle.by Rlewisrlou666 - Reprappers
Did you check your endstop switches?by Rlewisrlou666 - Reprappers
It seems that the Duet is out of stock from that link. I'm sure one will come up at the right price. Thanks for the help Guys.by Rlewisrlou666 - Reprappers
I get this when looking for the Reprap shop.by Rlewisrlou666 - Reprappers
I couldn't find any Duets for that cheap. I was looking at the RADDS but they need an Arduino Due so £40 for the RADDS + £25 for the Due and you are looking at £65 plus the extras on top of that drivers and everything else.by Rlewisrlou666 - Reprappers
They just quoted me £77 just for the copper clad board on it's own so I think I will be leaving that idea for now. Having a Thermistor in the centre sounds like a great idea depending on the thickness you could also install an LED not sure how practical it would be printing in black or anything like that but would look great printing white. I was thinking Ramps but then the more I looked I stby Rlewisrlou666 - Reprappers
@Doug - I'm in Chepstow, I found Aluminium Warehouse reading another post earlier I'm going to be ordering my plate from them as I thought the prices were awesome. That's if my brother in Law can't get me some from his works. I found a PCB supplier that will sell me some copper clad in the size I need I just have to design something to etch onto it or find someone who knows how to work eagle thby Rlewisrlou666 - Reprappers
Not so much about not having a fan but I have been watching loads of print/tutorial videos and have noticed some Printers have fans that blow onto the prints to help cool material. I was thinking if a fan or 2 is used to cool material blowing from each side on trickier prints could you have 4 fans mounted around the Extruder and have them turn on depending on where you have printed. So for examby Rlewisrlou666 - Reprappers
Thanks for the link elwood127 I'm in the UK though. I'm building with Extruded Aluminium I've ordered some 2020 and some 3030. I watched a tonne of CNC builds that are made from Extruded Frame and they are massive machines I think the one build had something like 10x5ft build platform with 4ft of that dropping to the floor to handle taller pieces. I was really impressed with how strong it wasby Rlewisrlou666 - Reprappers
Thanks again Doug, I watched Toms Hardware video on SSR's as he just upgraded the heater to a Silicone for his Delta, looks like I'm shopping for a large wattage heater.by Rlewisrlou666 - Reprappers
That would be pretty wild. Not sure how the electrical contacts would handle rapid heat and cooling cycles you would have to test it before hooking up to your printbed. Heat to 100C leave for 5 mins cool to Ambient Temp Cycle increasing the max temp time each time till something fails. You don't want to fry anything Major. I like your style of thinking though. Printing onto a Cooled bed wouldby Rlewisrlou666 - Reprappers
@JamesK - You won't ever get laughed at by me by asking questions that sometimes need to be asked. I suffer with excessive curiosity too. Most beds I've seen even on pro models are composite in some form. Frame/PCB-Silicone Heater/Build Plate/Glass all held together with bulldog clips so it's not a crazy idea it just takes the right materials. Auto Levelling is cheap to implement you only need aby Rlewisrlou666 - Reprappers
Thank you for the advice guys I'll ask my Brother In Law what sheet metals they do at his place. @dougal1957 - Would I be able to run a heater of that wattage through an SSR to make it more usable without the need for a 1000w Power Supply? @JamesK - I was thinking of making a composite of FibreGlass and Aluminium. 1.5mm Aluminium 400 x 400 silicone heater 2mm fibreglass 1.5mm Aluminium Thby Rlewisrlou666 - Reprappers
Thanks for the reply JamesK I have a sheet of 1.5mm Aluminium that I've been saving for a project. I'm was thinking of using that as a bed with a coating on it.by Rlewisrlou666 - Reprappers
Hi Guys and Girls, I'm new to the building of 3D Printers but have watched them grow and have been amazed by what they can do. I studied Games Design in Uni and did quite a bit of 3D modelling then but since haven't really touched any 3D modelling. Life getting in the way and my main PC going bang and not having the funds to fix it. I haven't started my build as of yet but I have the orderedby Rlewisrlou666 - Reprappers