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Has any one built the Micromake printer?

Posted by titan325 
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xile6
Re: Has any one built the Micromake printer?
September 30, 2015 02:40PM
Quote
aimatt
Thanks for the help. I did the gcode and it does switch to closed when pressed. So so all the endstops appear to trigger correctly. Doesn't that mean the nozzle shouldn't smash into the glass like it has been? Or is it just used for the probe? How do you do the probe?

I'll check on max z length.

The probe is used for auto level.
To use it. You will have to run G29 code before every print.
Move prints will start off with
Heating then
g28 (home all )
Then it moves on to printing.

add the G29 code after G28 in your slicer program. I use cura.

The Z height has to be change in the firmware.
The Z offset is the probe. It should be around .6 to .9
The height will depend on how high your endstops are. Mines turn out to be 265.8

That is from Home,
The tip of the nozzle to the bed. You find this by homing the printer then moving down untill you touch the bed.

If you look at the lcd it should says X 0 Y 0 Z?? Where ?? is a number. you subtract that from what is in the firmware and that is your Z height.

Once that is done it should not crash into the bed. It will drop down to X 0 Y0 Z0 and the nozzle should be in the center of the bed just touching it.
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aimatt
Re: Has any one built the Micromake printer?
September 30, 2015 03:35PM
Awesome. I think I'm very close to being up and running. Last thing I have on my list is figuring out how to attach the heated bed to the rails. I had to use my 3mm t nuts to mount the power panel.
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xile6
Re: Has any one built the Micromake printer?
September 30, 2015 04:10PM
I used the 3 t nuts for the bed.
I upgraded mines and have the an all aluminum bed.

What I did was Put the m3 bolt through the hole, Then used 3 M4 square nuts as a spacer. Then m3 t nut.
Works great and make it easy to remove the bed if needed. Also moves the heat away from the main board. I also added a fan there too.

here is a few pix

I printed out the ramps holder on my other printer. But once you get yours up and running you can print one to.




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aimatt
Re: Has any one built the Micromake printer?
September 30, 2015 06:32PM
Is the aluminum to help heat up faster? With the glass it's taking 30 mins or more to get to 110 degrees.
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xile6
Re: Has any one built the Micromake printer?
September 30, 2015 07:12PM
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aimatt
Is the aluminum to help heat up faster? With the glass it's taking 30 mins or more to get to 110 degrees.

When i had the heat board and glass on. It seem to heat evenly.
Also i hated using the clamps.
But the aluminum ones IMO are just better. I do believe they heat up faster. And i know for sure there more evenly heated.
Plus no clamps. Just lay down some painters tape and print.

I havent ran mines that high yet. No need to print abs ith this printer yet.
But on my prusa i3 i believe it took about 15 or 20mins to get to 100.
I got it to 110 before but took forever and i foundi could print abs on ot @ 100 easily.
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aimatt
Re: Has any one built the Micromake printer?
October 01, 2015 10:49AM
Ah ok. Do you use some kind of insulation between the bed and the electronics?
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xile6
Re: Has any one built the Micromake printer?
October 01, 2015 11:14AM
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aimatt
Ah ok. Do you use some kind of insulation between the bed and the electronics?

No the bed is a few cm above the rails and i also have an exhaust fan under the bed to help cool the electrionics
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aimatt
Re: Has any one built the Micromake printer?
October 01, 2015 12:51PM
Sorry to backtrack, but I'm having trouble setting the z max height. I tried M206 Z16 but doesn't appear to take when checking with M501. How did you set it?
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xile6
Re: Has any one built the Micromake printer?
October 01, 2015 01:04PM
Quote
aimatt
Sorry to backtrack, but I'm having trouble setting the z max height. I tried M206 Z16 but doesn't appear to take when checking with M501. How did you set it?
I did all that in the firmware. Your have to upload it to the board with all the readings you took.

By default the eeprom fuction is turn off.
You can turn it in in the firmware settings tho.
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aimatt
Re: Has any one built the Micromake printer?
October 01, 2015 01:24PM
Great. That fixed it. I used MANUAL_Z_HOME_POS. I really appreciate all your help.
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aimatt
Re: Has any one built the Micromake printer?
October 02, 2015 01:12PM
When it does the autolevel, it does it like 4-5 inches over the bed. Shouldn't it do it near bed level so it can detect slopes?
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Koenig
Re: Has any one built the Micromake printer?
October 02, 2015 01:37PM
Quote
aimatt
When it does the autolevel, it does it like 4-5 inches over the bed. Shouldn't it do it near bed level so it can detect slopes?

I think you need to calibrate the printer and find out the Z-probe offset before you can do any auto bed leveling.
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xile6
Re: Has any one built the Micromake printer?
October 02, 2015 02:56PM
Quote
aimatt
When it does the autolevel, it does it like 4-5 inches over the bed. Shouldn't it do it near bed level so it can detect slopes?
Check your endstop.
It could be backwards in the firmware causing it to read trigger before it makes it to the bed.

When you do the m119
All should say trigged but z min should day open.
This is when u home
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aimatt
Re: Has any one built the Micromake printer?
October 02, 2015 05:02PM
Yeah, that is what it is showing....
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xile6
Re: Has any one built the Micromake printer?
October 02, 2015 06:15PM
Quote
aimatt
Yeah, that is what it is showing....

When you press up on the nozzle and type in m119 does the Z min say triggered?

The hot end should move down to about 20mm from the bed.
Then it will move to the front right and then drop down till it touchs the bed.


When you do the g code. G1 X0 Y0 Z5 F2000
Does the nozzle move down center to 5mm off. The bed?
If its way more then 5mm then your Z highet isnt correct.
If it is about 5mm above the bed then i would say something is wrong with the switch or its picking up on something and false triggering.
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aimatt
Re: Has any one built the Micromake printer?
October 03, 2015 11:14AM
Yeah it is center, about 5mm up. I moved my top endstops down, thinking there might be some macro set, limiting the amount of travel or something. That improved, resulting in getting close to the bed. However, when it moved to the side, it scraped into the bed in the -X direction, in the +X direction, it lifted off the bed. I played manually with Pronterface and it seems like either the bed is not level, or the extruder moves slanted. I used the spacer method to mount the bed, so there's no real way to adjust it as is.

Could different arm lengths cause this? I did not check them initially and some of the squeaking and noises I alleviated by lengthening a couple out them by unscrewing the bearing a bit.
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xile6
Re: Has any one built the Micromake printer?
October 03, 2015 11:35AM
Quote
aimatt
Yeah it is center, about 5mm up. I moved my top endstops down, thinking there might be some macro set, limiting the amount of travel or something. That improved, resulting in getting close to the bed. However, when it moved to the side, it scraped into the bed in the -X direction, in the +X direction, it lifted off the bed. I played manually with Pronterface and it seems like either the bed is not level, or the extruder moves slanted. I used the spacer method to mount the bed, so there's no real way to adjust it as is.

Could different arm lengths cause this? I did not check them initially and some of the squeaking and noises I alleviated by lengthening a couple out them by unscrewing the bearing a bit.

If you can post your firmware. you can copy and paste the configuration.h


I had the problem of it not moving flat across the bed. Left to right was fine but front to back was as you said.
I ended up blanking out the eeprom and downloading a fresh firmware.
The one i ended up using was on there thingivers micromake firmware

*edit

the firmware that is posted is 2.4

while the one that came with my printer was 2.2

so give that a try and see if it works better. your have to probably adjust your height and motors in the firmware tho.

Edited 1 time(s). Last edit at 10/03/2015 12:00PM by xile6.
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aimatt
Re: Has any one built the Micromake printer?
October 03, 2015 03:19PM
Here is what's happening: [www.dropbox.com]

I just tried the one on thingiverse and I think I'm seeing the same thing.

I'm seeing #define VERSION_STRING "1.0.0" ???

I've attached my configuration.h.

It almost seems like it goes UP instead of DOWN as it probes.

I will try clearing my eeprom.

Can you share your config, please?

Edited 1 time(s). Last edit at 10/03/2015 03:21PM by aimatt.
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Attachments:
open | download - Configuration.h (24.9 KB)
aimatt
Re: Has any one built the Micromake printer?
October 03, 2015 03:27PM
Bah. With the new configuration, the zmin endstop is not triggering. Checking into it. Let me know what your config looks like please.
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aimatt
Re: Has any one built the Micromake printer?
October 03, 2015 04:04PM
I fixed the trigger by loosening the screw. It just seems like the probe is going up instead of down. It's an upward spiral of sorts. I'd expect it to be a downward one.
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xile6
Re: Has any one built the Micromake printer?
October 03, 2015 04:37PM
here is my firmware. your welcome to try it out and see if it works for you.
The most you should have to change is the motors (could be flip from yours) and the height depending on your endstops.
my firmware
Mines is setup to with with a 90 radius. so it does 180 dia
But everything works great.




This is from there main site.
I check and i got it mix up the thingivers is an older firmware also.
micromake site

Edited 1 time(s). Last edit at 10/03/2015 04:49PM by xile6.
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aimatt
Re: Has any one built the Micromake printer?
October 03, 2015 10:00PM
Wow. You were right about the end stops. Turns out there was a bad solder job on the wires to the switch. I was broken off. Since it's under heatshrink, it would work in the home position normally. However, when it went lower it would disconnect. With your firmware, it's working perfectly. Thanks so much!!!
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xile6
Re: Has any one built the Micromake printer?
October 03, 2015 10:15PM
Quote
aimatt
Wow. You were right about the end stops. Turns out there was a bad solder job on the wires to the switch. I was broken off. Since it's under heatshrink, it would work in the home position normally. However, when it went lower it would disconnect. With your firmware, it's working perfectly. Thanks so much!!!

Thats great. Im glad its working for you. Where you able to get a print working?

And setting up the Z probe z offset.
I normally lower the hot end down untill it touches the bed without triggering the switch.
Then move it down .1mm until the switch reads trigger and i hear it click.
Then back it up until it unclicks and repepted a few times.

Then you input that number as a postive for the offset.
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aimatt
Re: Has any one built the Micromake printer?
October 04, 2015 08:35AM
I'm tweaking the z offset right now with the paper test. I'm hoping to print some wheel bearings for the filament spool after that.
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aimatt
Re: Has any one built the Micromake printer?
October 04, 2015 08:51AM
Maybe a new problem.... my nozzle might be gunked up or something, the filament comes out really slow. I'll try a higher temp I guess.
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xile6
Re: Has any one built the Micromake printer?
October 04, 2015 09:30AM
Quote
aimatt
Maybe a new problem.... my nozzle might be gunked up or something, the filament comes out really slow. I'll try a higher temp I guess.

For pla i normally do 190C and abs i do 230C.

But if your printing with pla and it seems like its stuck then turn it up to 230c and extrude about 100mm and see if it starts to flow out good.
Also do you have your fan blowing on the heat shink? and is it facing the right way? (seen alot of people put them on wrong)
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aimatt
Re: Has any one built the Micromake printer?
October 05, 2015 11:36AM
I'm using ABS. PLA was not really an issue. I was able to print one part with no heated bed with PLA. I was able to get better flow with 245C, but it just seems like there is a lag. Like the whole first layer just has nofilament come out.

Using cura, do you set the first layer thickness and speed? So far, lowering those seems detrimental.

The fan is on the extruder, blowing at it.
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xile6
Re: Has any one built the Micromake printer?
October 05, 2015 12:13PM
Quote
aimatt
I'm using ABS. PLA was not really an issue. I was able to print one part with no heated bed with PLA. I was able to get better flow with 245C, but it just seems like there is a lag. Like the whole first layer just has nofilament come out.

Using cura, do you set the first layer thickness and speed? So far, lowering those seems detrimental.

The fan is on the extruder, blowing at it.
I didnt change the frist laryer settings.
But i change the skirts.
I normally do about 4 to 5.
That normally gets the filament flowing before it does the first print.

My nozzle is .4 so i use .8 for bottom/top thickness.
And i print at 65 mm/s overall
Bottom layer is 20mm/s

Also your filament might need a big of heater temp.
I have always had to print abs outside or in a garage.
The ac in the house normally causes warpage plus abs smells on l9ng prints.
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aimatt
Re: Has any one built the Micromake printer?
October 05, 2015 10:14PM
Thanks. I got a different brand of blue ABS and it seems much more forgiving. I haven't been able to print an Eiffel Tower, but it does a bathtub just fine grinning smiley

Your settings definitely help speed up my prints.One thing I noticed is it does grind with the higher speed retraction. I dropped it down to 5mm/s.

I put a space blanket under the bed for more insulation and wrapped the whole thing in foam board + a clear garbage bag and added a PC fan with a pipe going out the window. Next time I get to a hardware store I will try out a carbon air filter instead to keep more heat in. Especially since autumn is starting.

I can get the bed up quite a bit higher now, but not quite up to 100 yet. If it remains an issue I check the ohms.

Thanks again!
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aimatt
Re: Has any one built the Micromake printer?
October 09, 2015 12:25PM
I've been having good success using ABS with a 90 degree bed with a raft and turning down retraction speed. I made a couple pieces of Barbie furniture and that universal spool so far.
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