You've built a CNC already, so I'd say try something new and go delta. I'd follow dc42's recommendation and at least go duet on the electronics since he's on top of the firmware for that.by madmike8 - Reprappers
If your hotend uses a ptfe sleeve and you've printed at more than 230 degrees, you've probably damaged the sleeve and need to replace it.by madmike8 - Prusa i3 and variants
80mm x 80mm x 80mm print size... A bit small.by madmike8 - General
Considering my job... probably so...by madmike8 - General
My thinking... You choose print. If the host detects SD card present, then it searches the beginning gcode of the file for the bed temp, sets the temp, and then proceeds to upload the file and then begin the print. If upload fails, it turns off the bed and reports error. If no SD card. it proceeds normally.by madmike8 - General
Downunder3M, Please Sir... 3DBenchy http://www.thingiverse.com/thing:763622 PLA .4 Nozzle 180 Temp (These are actually easy to adjust by editing the Gcode manually) 60 Bed Temp Settings used in case you want to change something: Nozzle: 0.4mm , No Multiplier, 1.75mm for the filament. Retraction 2.5mm @ 40mm/s, 3mm wipe. 0.2mm layer, 3 top, bottom and 2 shells, first layer @ 0.4mm. 6 Skirt outliby madmike8 - General
I'm out of my league here... but it would be nice if the host program would start heating the printbed, and if a SD card is detected upload the part to the SD card, and then start the print from the SD card. That way while your waiting for the heatbed to reach temp it's uploading the part.by madmike8 - General
Thinking of things out loud here... Kit portability? Is the printer your building sturdy enough for transport to and from classes. Soldering? Does your kit need soldering skills ~heatbed etc... Do you need to provide soldering irons, holders, solder? Tools? Are you going to provide tools for assembly, or include them as part of the class. Power? Does your location provide enough Power outlby madmike8 - General
i think the mk2 uses a standard jhead attachment. measure to verify.by madmike8 - Smart_Rap
Do you remember which version of the genie you have? check regpye's websiteby madmike8 - Smart_Rap
I will look in tomorrow. I think your close, but solve the problems one at a time.by madmike8 - Prusa i3 and variants
James, Once again M119. See what's triggered. Press your Xhome switch and hold it do M119 and see what it reports. You may have to invert the logic for x min too.by madmike8 - Prusa i3 and variants
Or just remove the // from the disable max endstop line. The reload with the IDE.by madmike8 - Prusa i3 and variants
As I mentioned earlier... Price is the main concern. Build it however you like... But price will determine how well it sells...by madmike8 - Firmware - mainstream and related support
If your board is properly wired, then you have two solutions in your configuration.h 1. Disable max endstops #define DISABLE_MAX_ENDSTOPS 2. Change the max endstop logic. const bool X_MAX_ENDSTOP_INVERTING = false; (change to opposite of what it is now. True or false.) Edit: Sorry, used an older version of Marlin syntax. Fixed.by madmike8 - Prusa i3 and variants
Why are your Max triggered? Do you see your problem? It won't move to the right if it thinks it's at it's max distance.by madmike8 - Prusa i3 and variants
Jason, if you send M119 GCode, to get your endstop status, what does it report?by madmike8 - Prusa i3 and variants
Question for the folks who have this printer. What's the center to center distance between the two Z axis lead screws? I would like to use a closed loop belt and a center mounted single stepper on the top extrusion.by madmike8 - Prusa i3 and variants
Quotedc42 Marlin and RAMPS have served the community well for a number of years. But the market is changing and technology has advanced, so it really is time the community moved on to something better. I guess the problem is that the community can't decide what to standardise on. The Market has standardized. The standard is Cheap and Free. RAMPS is cheap, and Marlin is free. As long as they canby madmike8 - Firmware - mainstream and related support
Looking forward to seeing build pics!by madmike8 - Smart_Rap
Lol... Well do what you feel safest in doing... But if you have a semi steady hand, and you've freed yourself from dealing with the multimeter leads. It really is a pretty simple process to set vref for 5 drivers in a few seconds. I actually got a second set of test leads and made a set just for this with the screwdriver on the positive lead and a female molex on the negative lead. Plug the molexby madmike8 - Prusa i3 and variants
That's why you cover all but the tip with heat shrink. To reduce chances of a short. Question for you folks... Are you setting the vref with the motor power supply turned on? You can set vref with just the Mega's USB port plugged in.by madmike8 - Prusa i3 and variants
If you need 4x2 ptfe, and your in the U.S. Then I can drop a 6" section in the mail for you... But be sure it's 4x2 and not 3x2.by madmike8 - Mechanics
Tip I learned. Take a small screw driver and strip some wire then wrap it around the screwdriver. Use heat shrink to secure the wire and cover all but the tip. Install alligator clip on other end of wire. Then clip the alligator lead the positive test lead of your multimeter. Touch the negative lead to ground, and then use the screwdriver to get the reading as your adjusting.by madmike8 - Prusa i3 and variants
If it has a ptfe inner liner, and you've run temps at 250 then you might have damaged the liner.by madmike8 - Mechanics
Not sure I have my head wrapped around your project yet... So forgive me if I'm thinking wrong... If you had a round screw nut... Let's say like a round lead screw nut. Now on your motor mount bracket you have 2 arms that come off it like a C channel. A hole threw the arms for the screw to pass through but smaller then the round nut. Thrust washers on either side of the round nut. So the screw wby madmike8 - Mechanics
As with most things... It was User error... LOL I switched Edit>Settings>AVR Programmer from stk500v2 to arduino, and it worked like a charm!by madmike8 - Firmware - experimental, borrowed, and future
Been a while since I had a bit of time for this, but I got Teacup configured with the config tool for the CNC Shield V3 & a UNO. The config tool compiled the hex just fine, but the upload timed out. I just used Xloader to upload the hex. Connected to Ponterface just fine! I don't have the seven switch soldered up yet, but I will get it connected to some steppers soon. Thanks for the help! Eby madmike8 - Firmware - experimental, borrowed, and future
I'd say we learn to manually do it, because of lack of options. Sounds good to me if you want to put the time in. Get with the Marlin developers and create something that can be expanded with future options.by madmike8 - General