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Just realized mine have 2 screws for each shaft Australian Supplier https://www.bilbycnc.com.au/DispProd.asp?CatID=9&SubCatID=89&ProdID=PtCoup5-8

Hi Zuma You may need to adjust the trim pot on the motor driver board slightly. See instructions in the wiki. Be careful though you can blow the driver board if you turn it too far clockwise.

When you are struggling to get your prints to stick on glass it's hard to make them stick without getting this 'Elephant's foot'. When you raise your nozzle slightly you avoid this but then you start to get lifting off the bed and/or the bottom surface not totally filled. Kapton sticks better than glass but isn't as nice to use so you can more easily avoid this but you have the other trade offs, takes longer to be able to remove your print, you have to replace your tape periodically, especially if your bed isn't perfectly level and the nozzle bights into it.

I'd say they would be OK. I got some that have a single screw onto each shaft that look like that and it seems to work fine. Only done the Y motor so far (for a month or 2 now) I've just finished my X motor bracket so I think I'll put it on today.

Thanks mate, I'll do that.

Awesome work once again Simon. Thanks very much. I'm fairly OK with using the Arduino software etc. but if I run into trouble I'm sure your blog will help me out. One question though does the version of Marlin with Cura have the fix you submitted for retraction?

Hi Bill After you click on My Gallery, there's a link around the middle that says upload

I'm hanging to test it Daid.

I think your platform may not be real level. Zero your platform and then using a piece of paper under the nozzle at all four corners adjust the screw so it takes a bit of pull to pull the paper out from under the nozzle. Do it for all 4 corners and go around again.

Hi Ascanio You need to build a HBP yourself. Best way is to look through the forum here and here https://groups.google.com/forum/#!forum/ultimaker there is much written and many different ways of doing it. There is a variety of heating boards you can use as well. Ultimaker is in the process of designing one but there is no ETA yet.

Hi Lars I couldn't upload a file. So here is the text of UltraFilled.reprapbuildstyle <root> <name>09: Ultra quality - FILLED OBJECT</name> <outercontourwidth>fine</outercontourwidth> <minregionarea>0.30000001192093</minregionarea> <maxcontourlayers>2</maxcontourlayers> <upskinminwidth>3</upskinminwidth> <downskinminwidth>3</downskinminwidth> <fillingangle>45</fillingangle> <upskinangle>45</upskinangle> <downskinangle>45</downskinangle> <upskinlayers>20</upskinlayers> <downskinlayers>16</downskinlayers> <fillspacing>-0.125</fillspacing> <upskinfillspacing>-0.34999999403954</upskinfillspacing> <downskinfillspacing>-0.34999999403954</downskinfillspacing> <upskinfeaturesize>0</upskinfeaturesize> <downskinfeaturesize>0</downskinfeaturesize> <supportcalculationlayerthickness>0</supportcalculationlayerthickness> <supportdefaultangle>35</supportdefaultangle> <supportstrongangle>40</supportstrongangle> <supportweakangle>30</supportweakangle> <supportdefaultspacing>1.5</supportdefaultspacing> <supportstrongspacing>1</supportstrongspacing> <supportweakspacing>2</supportweakspacing> <supportminimumdiameter>0.5</supportminimumdiameter> <supportlayerdistanceondownskin>1</supportlayerdistanceondownskin> <supportlayerdistanceonupskin>0</supportlayerdistanceonupskin> <supporttransitionlayercount>15</supporttransitionlayercount> <supportpartconnectionlayercount>6</supportpartconnectionlayercount> <minimalhatchlength>0.80000001192093</minimalhatchlength> <supportfluffoverlap>3</supportfluffoverlap> <supportpartlockvolumeoffset>2</supportpartlockvolumeoffset> <regiondefinition1_outercontour> <filamentdefinition>half_layersize</filamentdefinition> <speed>snake</speed> <width>fine</width> <widthfactor>1</widthfactor> </regiondefinition1_outercontour> <regiondefinition1_filling> <filamentdefinition>default_layersize</filamentdefinition> <speed>medium</speed> <width>medium</width> <widthfactor>1</widthfactor> </regiondefinition1_filling> <regiondefinition1_upskin> <filamentdefinition>default_layersize</filamentdefinition> <speed>slow</speed> <width>thin</width> <widthfactor>0.75</widthfactor> </regiondefinition1_upskin> <regiondefinition1_downskin> <filamentdefinition>default_layersize</filamentdefinition> <speed>slow</speed> <width>fine</width> <widthfactor>0.85000002384186</widthfactor> </regiondefinition1_downskin> <regiondefinition1_innercontour1> <filamentdefinition>default_layersize</filamentdefinition> <speed>slow</speed> <width>fine</width> <widthfactor>1</widthfactor> </regiondefinition1_innercontour1> <regiondefinition1_support> <filamentdefinition>default_layersize</filamentdefinition> <speed>slow</speed> <width>fine</width> <widthfactor>1</widthfactor> </regiondefinition1_support> <regiondefinition> <name>Normal</name> <minarea>-1</minarea> <maxarea>-1</maxarea> <zjumpoffset>0</zjumpoffset> <id>5</id> <temperature_scale>1</temperature_scale> <upskintype>1</upskintype> <downskintype>1</downskintype> <seamtype>0</seamtype> <outercontour>regiondefinition1_outercontour</outercontour> <filling>regiondefinition1_filling</filling> <upskin>regiondefinition1_upskin</upskin> <downskin>regiondefinition1_downskin</downskin> <innercontour1>regiondefinition1_innercontour1</innercontour1> <support>regiondefinition1_support</support> </regiondefinition> <override> <name>support1</name> <speed>1.39999997615814</speed> <extruder>0.30000001192093</extruder> </override> <override> <name>support2</name> <speed>1.20000004768372</speed> <extruder>0.5</extruder> </override> <override> <name>support3</name> <speed>1</speed> <extruder>1</extruder> </override> <override> <name>support4</name> <speed>1</speed> <extruder>1</extruder> </override> <regionselection> <type>bylayer</type> <threshold>3</threshold> <item> <type>useregion</type> <regionid>5</regionid> <temperature>100</temperature> <heatedbed>100</heatedbed> <fancontrol>0</fancontrol> <speedoverride>50</speedoverride> <extruderoverride>100</extruderoverride> </item> <item> <type>useregion</type> <regionid>5</regionid> <temperature>100</temperature> <heatedbed>100</heatedbed> <fancontrol>100</fancontrol> <speedoverride>100</speedoverride> <extruderoverride>100</extruderoverride> </item> </regionselection> </root>

Yep, that doesn't apply for Volumetric and probably no one uses the Non-Volumetric anymore.

There is only a very small solder pad which is hard to get to. It gives a voltage that is proportional to the current. Last time I looked for it on data sheets for the Pololu board I couldn't find it.

Great work Simon. The graph at the end says it all. Thanks for your effort.

Hi Calum Correct Quite common in computer stuff

Hi Jack If you look at the end of the shafts at the top of your machine you see limit switches at the end of some of those which you can push the lever and you'll here a click. I gather it is talking about them.

Hi James The quickest way to see some finer results is print a bit slower. Other than that you could try a layer size of 0.06. You can look through the forum to see what settings other people have used on there prints. After that though it's really experimenting. Different models benefit from different settings.

Hi Jelle If you use http://umforum.ultimaker.com/index.php?app=core&module=search&do=viewNewContent&search_app=forums as your link it shows all your unread posts with no Sections or Sub Forums to worry about. Is that what you are after or something else?

Hi ji I already had these ones here http://www.mendel-parts.com/index.php/stepper-motor-nema17-incl-molex-connector.html so I used them. They have the shaft coming out the back which isn't needed. I think the stepper motors in the Ulti are bigger now than back then as well but not sure.

Here you go Ian http://www.thingiverse.com/thing:22734

Hi ji11 you won't blow your stepper motor if it goes wrong you'll blow the driver board You can look up the spec sheet for the driver and it shows a pin that you can measure a voltage from that is proportional to the current. It's quite hard to get to though. Easier to follow the wiki and adjust in very small increments going by sound. The stepper motor growls when too high and misses steps when it's too low. Important not to turn it up too high. The driver board will blow very quickly, believe me I know :-|.

Great work corngolem Thanks for your efforts.

I could if I could work out how to attach files here. Any idea?

Hi Elbozo They slice up in Netfabb no problem once it was oriented to sit on it's back on the platform. The clips won't print great without support due to the 90 degree overhang.

Hi illuminarti Thanks for your efforts. I read your blog, good one. I have a question Do you think it would be beneficial or not to skip the microstepping for the z motor as long as you chose suitable layer heights?