I think a mechanical relay's clicking is going to create a lot of noise. Your extruder heater is only pulling between 2 to 4A and the FETS will handle it just fine. Depending on your bed heater the FETS/Connectors may or may not be fine. I'd use the FET to drive a good SSR if your worried about the bed heater but up to about 8A (96W) it should be OK also. By good I mean one like thisby WZ9V - Prusa i3 and variants
It would be helpful if those that have thermocouples working posted what combination they are using.by WZ9V - General
If you could add or re-purpose a LED to indicate when the board is fully booted and the web interface is fully ready, that would be a cool addition. I find sometimes I jump the gun on a reboot after a config change.by WZ9V - Duet
If your goal is to get printing quickly buy an assembled printer like the Wanhao i3. The Folgertech is a kit so while you are not sourcing it all yourself you do have to assemble and tune it. Based on what your message implies, I'd buy a kit and learn on it. There will be plenty of opportunities to customize the kit and then when you know more you can use that printer to help build something fby WZ9V - Prusa i3 and variants
These are an option for switching things on/off using a digital pin. I use the PWM R/C ones on my multicopter so to switch LED strips on/off.by WZ9V - General
I would not use 2.1mm DC jack on a heated bed. If you have a hobby store nearby see if they carry EC3 or XT60 connectors. For a 20A setup those will easily do the job with very little power loss (I use them on my multi rotors pulling 45A). They should also carry nice silicone stranded wire which is designed for high power situations. For typical heated bed currents, the smaller EC2 or XT30 conby WZ9V - Duet
It might be nice to have a Thermocouple interface for each hot end. It could be as simple as connector to make it easy to wire up the boards that are supported today (as opposed to using the expansion connector) or maybe actually integrate the amplifier on board (assuming it didn't greatly increase the expense of the main board)by WZ9V - Duet
I use pronterface on Linux Mint 17.3 without problem. Depending on your distribution you may or may not need to update pySerial to get 250000 bps data rate working (with Mint I had to update). It is better to print from the SD card as others suggested though.by WZ9V - Developers
My current FSR solution is not working well but that's due to some other problems I need to fix. I use a bed mounted solution and intend to upgrade it to the one used by mhackney on seemecnc. When doing a bed mounted solution watch out for the pressure tilting the bed. That is one reason I like mhackney's approach but it needs something like the "star" found under the Onyx bed they sell. Thby WZ9V - General
Here is one example On www.seemecnc.com forums check for mhackney's solution, he has a nice setup with good repeatability.by WZ9V - General
If it were my Delta I would suspect your z_max_pos is set wrong (too small) and you are hitting the software endstops (z=0) before you actually reach the bed. If it stops at the same point, measure the distance to the bed and try adding that to z_max_pos. Then carefully lower z to confirm. If you are truly daring you can set z max higher than it's supposed to be and then jog down until it grabby WZ9V - Printing
It's your M84, when you cut the power to the steppers the effector will drop because there is nothing holding it in place. Take that out and it will stay in the home position. I just use G28 not sure why you would need X0 also. QuoteReplace On my delta, after the print is finished, the head homes to top and start drooping on the finished object. My custom code is: M104 S0 ; turn off temperatby WZ9V - Slic3r
Are you using 1.09r or 1.09m? I had a problem where I had to use unusually large H values when the Z-Probe was set to switch mode, DC42 fixed that up in the R version so I would update to that if you have not already. The B value seems high for the usual thermistors, which one do you have? The common ones I've seen are more like 3950 to 4200. QuotePumlux That tips looks pretty good. I'm stillby WZ9V - Controllers
I agree with the no replacement for poorly constructed machines part but I do think it's useful in situations where you swap out the build plate between prints. Quotethe_digital_dentist Autoleveling/zeroing was developed as a fix for poor printer construction in machines that were unable to maintain the settings from one print to the next (why else would anyone have bothered?). Instead of addreby WZ9V - CoreXY Machines
Anyone bought and assembled one?by WZ9V - Prusa i3 and variants
I made a plug with a 100K resistor (measured with DMM to be 100K) and plugged it into the thermistor port. I then tweaked H value to get a reading of 25C and for B I looked it up my thermistor on RepRap and datasheets and took the value from there. I then attached the DMM's temperature probe to the bed using Kapton tape and verified values were similar at printing temps. I did similar processby WZ9V - Controllers
OK. I had seen some Graber i3 frames that looked interesting and could be US sourced but it sounds like a P3Steel derivative would be better even if I have to have it shipped outside the US.by WZ9V - Prusa i3 and variants
Would a 1/4in (6mm) MDF/Melamine frame be comparable as a 1/8in (3mm) steel one as far as stability and print quality?by WZ9V - Prusa i3 and variants
Makerfront is in the US. Don't have one so I can't say what it's quality is.by WZ9V - Prusa i3 and variants
I believe that's called it's just not worth the hassle and expense of enforcing the open source license. I do believe that have tried all the low cost alternatives but since that didn't work its lawyer time and that's expensive. I like the SBASE board layout but I won't buy one until it complies with the original license. QuoteDark Alchemist Quotew3drk And I agree with realthor and others, pleby WZ9V - Controllers
Your not looking for a "Designer" your looking for a volunteer. Even if you could source the parts to do that for $600/machine there would be nothing to pay for the time/labor involved in the design and assembly. I don't know many designers that work for free.by WZ9V - General
It looks like you are missing the T and B parameters M305 P0 T100000 R4700 B4200 H0 L0 T should be 100K not R, R should match the n board resistors 1000 or 4700 (assuming 100K thermistor) B should be the beta value for the type of thermistor used QuotePole04 I tried the R100000 with no luck. The temperature said 68.9 but that is far too hot for the room temperature which is closer to 22.2 Theby WZ9V - Controllers
Are you using Astrosyn dampers? I noticed that on my delta which uses them I had the belts too tight and that caused the X stepper to flex upwards and the belt to ride up on the lip of the pulley as it moved. I'm hoping that once I fix this my weird calibration issues will be a thing of the past.by WZ9V - Delta Machines
I would swap the bed and the SSR in the diagram. I put the SSR on the low side, not sure if it matters. QuotetKc Will order as soon as possible, thanks again. I took a shot at what the wiring will be like from your support/other stuff online (check out attached pic), does this work? Will just do 8 gage just to be safe for 20A. After researching more I believe that bang-bang is the way to go bby WZ9V - Reprappers
Those are a great find. Much better than the cheap ones for what we need and not that much more expensive. Quotemhackney I've been using this Auberins SSR on 6 printers with no issues at all. I switched to it after I had an SSR literally catch on fire while I was printing. This one doesn't even get warm even after a long print session.by WZ9V - Reprappers
I mostly use OpenSCAD. I'm trying FreeCAD but I just don't get it yet.by WZ9V - Reprappers
Now you know why people hook up web cams with OctoPrint and have multiple printers.by WZ9V - General
When I want V-Slot for wheels I go to OpenBuilds, for other stuff I go to Misumi USA. Misumi will cut to custom lengths, both Inventables and OpenBuilds sell standard lengths of 500mm, 1000mm, or 1500mm.by WZ9V - General
Thanks, that's what I was looking for. As you said there has been lots of discussion about it as a problem but I was curious if people saw it in practice.by WZ9V - Prusa i3 and variants
I loaded 1.09P alpha 2 and verified that the temperature reading problem I had when Z-probe uses P4 parameter has been fixed. Thanks David. Quotedougal1957 According to Github that fix is in 1.09P alpha2by WZ9V - Firmware - mainstream and related support