Now that this has been around for a few more months, how is the Kevlar belt holding up?by Andrew Diehl - Developers
Pronterface is really the "matched" sender for marlin, and it's a lot more straightforward than RepG. I only use RepG for orienting .stl files.by Andrew Diehl - Firmware - experimental, borrowed, and future
Found the problem! Your reminder for what the the g-code does is not commented out in the final gcode. You need to put the semicolons in for the start/end/extruderchange alteration boxes otherwise you comments get sent to the firmware and cause issues. (**** beginning of start.gcode ****) (This is being used lol?) (This file is for TOM with 1.75mm ABS in a MK7 Extruder) should be: ;(****by Andrew Diehl - Experimental
Did you disconnect the motor while there was power to the chips? This seems to be the most common failure mode.by Andrew Diehl - Stepper Motors, Servo Motors, DC Motors
There are enough places to get 8mm rods/bearings online in the US, either ebay or vxb. 5/16 bearings are far less common and generally more expensive than 8mm, even including shipping.by Andrew Diehl - General Mendel Topics
I realize slic3r is all the rage these days, but skeinforge still gives you far more control over the print and is still a fair bit more capable. If you have it working, skeinforge is probably worth a try.by Andrew Diehl - Printing
Lash would be a constant regardless of object size. So if the circle was supposed to be 20mm in X and was instead 21mm, the lash is 1mm. If the circle was supposed to be 100mm and it is 101mm, there is 1mm lash. It's that simple. The absolute positively last thing you ever want to do to fix lash is use the skeinforge lash settings. There are almost always hardware causes which can be fixed. Tby Andrew Diehl - Printing
Agreed. I would not suggest anyone make a machine with any other firmware besides marlin at this point. It is pretty messy right now, but it works so well and is still being actively improved.by Andrew Diehl - General
If it's still getting hot, you can always stack them in parallel, too.by Andrew Diehl - General
If your mosfet is overheating, get one with a lower rds on. I have used this one and it stays cool up to 30A without any heat-sink. Relays are a hack in this situation, and there is a legit solution which is less complicated and probably less expensive. 〈=en&site=us&KeyWords=irlb3813 IRLB3813 if you want to find it from a different vendor. The only time it has ever died on me is if I sby Andrew Diehl - General
Pronterface does not send the comments as far as I am aware. It looks like the firmware is having issues, actually. Maybe not recognizing something? What are the first few lines that aren't comments? Or better yet, just attach the whole g-code file.by Andrew Diehl - Experimental
If your mosfets are dying then they are not properly protected, or are overloaded. How did your mosfets die?by Andrew Diehl - General
I store open filament in a cardboard box on a shelf. We keep the humidity in the building to approximately 35% which luckily keeps the filament from having moisture absorption issues. (we control the humidity for PCB assembly reasons) Even stuff we have gotten in that was very moisture ridden became usable after a month or two here. A small sealed box with dessicant will probably work well forby Andrew Diehl - General
I'm no big fan of the cube, but it seems to be an alright printer. It looks like it works as well as the mk6 thing-o-matics, and for the price it will make a ok entry level printer for the technically challenged. I am disappointed in the bland plastic shell, though. It looks like a piece of medical equipment. No comment on the marketing hype...by Andrew Diehl - General
Sun, I've been using pronterface to upload gcode to my printer from kisslicer and have had no problems. Can you toggle the axis with the manual controls?by Andrew Diehl - Experimental
Thinner layer heights and/or slower layers (give them more time to cool off and become solid) will help immensely.by Andrew Diehl - Printing
Well, as is, that is a little out of the capabilities of current low cost printers as it would require a lot of support. However, if it can be divided in half and glued, (I see no reason why not) it is completely possible. If it needs to be one piece you will need to go to a bureau, or a few people on here have dimension/fortus fdm printers which could easily make this. It will be a lot moreby Andrew Diehl - Wanted
Pete, if you don't like it just don't buy from there. He's under no obligation to release his source unless he is editing someone else's open source design files (which I doubt he is) I think it's mostly reasonable. In an open source market, being the first to offer something is a relatively big advantage, since it takes a little time to copy things and your name gets out as the creator. It is pby Andrew Diehl - General
If you are skipping slow down the print speed and or acceleration.by Andrew Diehl - General
There are no licences for physical hardware, since you cannot copyright a functional design. That is what patents are for, and all the patents on reprap technology ran out a while ago. The licences only apply to the design files. If you sell or alter the design files, then you need to obey the licence. Once the Parts are printed, the license does not apply to them since they are functional physby Andrew Diehl - General
Does this really reduce complexity? Still need at least 4 steppers (Theta, R, E, and Z) The R travel would be half of a standard machine, but the total width would be about the same since you still need to accommodate the bed Still need either 2 gears (backlash) or a belt and 2 pulleys for the theta drive system, and the R drive system would be identical in principle to the X of a normal machby Andrew Diehl - General
In an ideal extruder (no burrs, perfectly round) You want an extrusion orifice as short as possible without breaking from the internal pressure or possible head crash. Turbulence in the extruder flow is negligible because the fluid (abs/pla) is extremely viscous, and you are immediately squashing it into the part. 1:1 or 1:2 aspect ratios work pretty well for strength vs required pressure with stby Andrew Diehl - General
Yikes! 80x55x26mm area. Almost too small for much of anything fun :pby Andrew Diehl - General
Definitely need a .stl file. Given it's slight curvature and large size you probably need a very high quality export to prevent lots of faceting. I think the size is OK since it can be diagonally oriented. It will probably take 3+hrs per fin (at $10/hr for me), and needs to be PLA to prevent cracking at it's size. These rocket fins?by Andrew Diehl - Job Shop: I need stuff made!
I've got all the parts, just waiting on firmware.by Andrew Diehl - General
I bought some of their filament off eBay a few months ago. It was pretty soft for ABS and had a lot of moisture in it. Maybe their ABS is just not as strong as others?by Andrew Diehl - General
I do press fits in ABS all the time with no issues. Where are you getting your ABS from?by Andrew Diehl - General
I've done some experimenting with limonene and HIPS, and have not have very good results, unfortunately Limonene takes forever to dissolve HIPS, and mostly just makes it gummy. It's also a pain to wash off the part (and is somewhat expensive.) I also found the cheap "ABS" from china (esunpla) is predominantly styrene and also softens in limonene... The whole way support is calculated is currenby Andrew Diehl - General
The whole thing is chicken and egg. Since machines don't have dual extruders there is no big push for dual extruder capable firmware/software. I recently started a post in experimental firmware about what marlin needs to be multi-head capable. Erik says there will be a dual material marlin released soon, but I have a feeling it still needs some work to be really usable via skeinforge. Real diby Andrew Diehl - General
I do a lot of printing with support. This is what works best for my printers. Crosshatch off Flow rate should be .8 (anything less has trouble sticking to the bed and does not break away in large pieces, anything more is just harder to remove) Interface (or base, don't remember which it is) Density should be about 50% for best results (Lower density will take less time but things tend to sagby Andrew Diehl - General