Anet N4 Z Axis mod

thingiverse

Work in progress. I will be working on some improvements for the Anet N4 DLP printer. This is the first of many. STL notes Bracket final is the spacer for the bearing mount. This MUST BE 3MM NO LESS!. 3MM TO 3.5MM. So if you would like a little more room just scale the Z axis up a little till you get 3.5mm Anet N4 Acme nut has 4 nuts in total. This is for is you think you might crack one installing them till i can put the index mark on them for timing. Rev 1.0 single is a Rev 1.0 nut but a single part. Rev 1.1 is a change. The threads have be clocked 45 deg. This part is marked Rev 1.1 on the part its self. This is to improve the Z axis on the Anet N4. This will eliminate the play found on the Z axis due to the lack of support. Items required. 4X M3X12mm screws Printed Acme Nut Printed or machined spacer I am using a machined spacer in the pics. This is based off the STL. Notes. The Acme nut must be "timed" right. If you do not do this you will crack the nut and it wont be tight against the Z axis. Step 1. Print parts. Picture's are from a nut printed in the 4 pack. Step 2. Remove the 4 screws that hold the bearing mount for the Z axis. Step 3. Raise the Z axis so that the acme rod is just under the head so that the nut sits flush. Step 4. Switch to .1mm movement and put slight pressure on the nut and start to move the Z axis down. If it feels tight or is cracking then reverse, 1/4 turn the nut and retry. I will make an index mark on a newer revision of this mod. Worst case is that the very top of the nut will crack out. this is still usable i used this to print the good ones. Step 5. Reinstall the bearing mount with the spacer under it to raise the bearing mount up. Attach with the longer 13mm M3 screws. I tested this and with a 3mm spacer and the provided nut after a print there was still clearance. I have not tested the 3d printed bracket just used it as a template for an Alu. one i machined. MAKE SURE THE SPACER IS AT LEAST 3MM!. Looks like you can go 3mm to 3.5mm for this. I would not to much more then that.