slatronic's 3D printer

**slatronic** · 03-21-2012, 09:19 PM

Tried some more this evening. Think I finally have a tuned up pretty good. I have a question though. The corners seem to be pulling up a bit. What settings would I need to adjust to make the corners smoother? Not sure if you can see it in the first pic or not.

I also included a couple pics of some fill issues which I think I solved. As the print when on the infill got worse and worse. I was using 25% then 10%. Then I went with 40% fill and it went a lot better. The good one is the first pic.

I was also able to finally get marlin to compile. I had to comment out #define ultipanel in the config file. BUT, now I can't get it to work right. Homing doesn't seem to want to work. I'm sure it's just some setting I haven't found yet.

**hoss2006** · 03-22-2012, 09:09 AM

Have a look at my marlin config, maybe you can compare some of the settings to see what may need changed.
Hoss

**slatronic** · 03-22-2012, 02:40 PM

Originally Posted by hoss2006

Have a look at my marlin config, maybe you can compare some of the settings to see what may need changed.
Hoss

Digging through the code I found this extra line of code that isn't in your config file. It's in the endstop settings of the config file. Right after max length setting.

// The position of the homing switches. Use MAX_LENGTH * -0.5 if the center should be 0, 0, 0
#define X_HOME_POS 0
#define Y_HOME_POS 0
#define Z_HOME_POS 0

Do you think I should just try to comment out and see what happens? I guess it can't hurt. I'll try when I get home from work. Other than that I haven't seen anything that's majorly different besides your specific settings for your machine. Back to work before I get in trouble

thanks

**slatronic** · 03-25-2012, 11:37 AM

So, I'm an idiot. All I had to do was change the endstop_inverting to false from true.

Marlin still isn't working very smooth for me. I've played around with settings but it's just not very consistant. I'm sticking with Sprinter for now.

I think I'm finally getting it. Still need to play around with Slic3r depending on print but I'm happy where it's going.

I made a calibration cube and it wasn't to bad. I need to play around with my bridge settings. I also tried to make a prusa y axis linear bearing holder. It came out good except for the stringies. Then I tried making a dual tone whistle and that worked really well.

Next is playing around with some ABS once I get my heated bed setup. Thats gonna have to wait since I'm going to China for work next week.

**slatronic** · 03-26-2012, 02:05 PM

Does anybody have any good links to what would be the lastest and greatest Prusa? I think I'm going to convert my mendel to a lm8uu prusa. I'm having a hard time sifting through all the different models on thingiverse and what seems to be people favorites. Figured this might be something good to research during my travels.

**hoss2006** · 03-26-2012, 02:34 PM

MendelMax catches my eye and the extrusions are pretty cheap at Misumi.
MendelMax : MendelMax.com
Hoss

**slatronic** · 04-07-2012, 11:01 AM

I'm back from China.

I don't know how people do it all the time. I've been back since Wednesday and I still don't feel right.

I have determined that I'm going to start building a Mendelmax. I already have some parts on the way. It will be cheaper than my original mendel kit I bought over a year ago but way more solid. I have order some of the parts from techpalidin and waiting for him to get more printed parts ready to go. I need to make a Mcmaster order and get my extrusions from misumi. Already ordered the steppers from ebay.

I'm excited about going to the mendelmax. It should be much more solid and print way more accurately. I had it trying to get my mendel to work right. The parts are just not accurately made enough and causes it to print sloppy. I feel no matter how much tuning I do it will never be able to print accurately. I think this will be much more like working with a benchtop cnc vs what I'm using now. I think for most of us here the accuracy we are use to just can't be matched by these machines and a sturdier more accurate machine will help that.

Thanks for the suggestion Hoss.

**slatronic** · 04-17-2012, 07:43 PM

Just a bit of an update. I've got most of my parts in. Just waiting on my printed parts from techpaladin.com. Should be here by the end of the week. I'm pretty pumped about going to the mendelmax.

The extrusions from misumi are sweet. They are all cut perfectly. I also ordered my linear railing from them. These are really nice as well. Much smoother than drill rod. I spent a little more on them but I saved ordering the stepper motors hoss suggested on ebay. I'm also gonna try the brass bushings instead of the standard lm8uu bearings. This seems to be the latest evolution of the mendelmax. For leadscrews I'm using 1/4" acme leadscrews from techpaladin. I looked at the ones from the mendelmax store with delrin nuts and I was questioning how durable they would be over time.

Just need to order my hot end, ramps and build platform. For the build platform I'm not sure what I'm going to do. I thought about going with a silicone heater but still trying to figure out the design. For now I'm just going to borrow the hbp I got for my other printer until I figure out what I'm going to do.