Mini Lathe Base/Without Motor Part - still in progress/ by TRENDi77

Last crawled date: 3 years ago

13.11.2014 - Inspired by this thing http://www.thingiverse.com/thing:526074 , I have created my version. You will find needed things on the pictures. Use support only for Rod Holder - not very easy to remove it after, but it is possible. This Part is final. There won`t be any changes on it.
You have all the distances to create Your Motor part or wait when mine is ready. I shall use parts from cheap (10-11 € as new) chinese 16" air fan for it. If there is anything missing post a comment.
14.11.2014 - I have added a new detail, that may be used as universal for motor part if You use 10 mm bolt, rod, etc for the main holder. Use or not support is Your decision. I do not use, as shown on the photos.
15.11.2014 - Some updates for today. Only for those that will use exactly the same motor from the 16" air cooling fan or at least have motor with same distances between holding holes (shown on the picture). It is brushless with bushing in origin. BearingHolder.stl it to update it with 608(8x22x7mm) bearings(filing is needed - i did not calculate some projections inside the caps). Propeller4Motor.stl is to replace the original propellers, that usually are falling apart when You take apart the motor. 4 longer M4 bolts(x 45 mm) are needed to replace the original ones for connecting front cap-coil-rear cap. You may use 16 x M6 nuts as spacers (as I did) or create your own 8 x 4mm x 10mm long spacers. You need 2 x 8mm x 12-14max mm x L10-12 mm (not sure about the length, because I used some that I have from a broken detail) to clear the axial movement of the rotor. BackBase for the motor is OK. Unfortunately I did not expect, that the front cap is not only not simetrical to the rear one, but even the holes do not match 29 mm(lol) x 50 mm pattern. So, use 6,5 mm drill towards the central ring from the 3 connecting holes on the Front Base. Original 3 speed 'mini' (heh) controller from the fan is also usable. Front part of the motor axis is long enought to use it directly with some 8 mm coupling to detail that You shall make on the lathe, ignoring the update part from yesterday. And the most important thing - do not ever forget, that this is caseless motor!!! Risk of electrical shock is very real!!! First of all find a way to make a cover, and do not touch it when it is on!!! I will not be responsible if anyone is zapped by AC!!! The rest, that will use their own motors may ignore this update(ignore MotorBaseBack.stl ; MotorBaseFront.stl ; BearingHolder.stl ; Propeller4Motor.stl ).
16.11.2014 - Added files of base and motor part in ACAD2010 or above format.
17.11.2014 - Added 3 couplings 8mm to 6 mm(L50 mm); to 8 mm(L55mm); to 10 mm(L50mm) and reuploaded the motorPart source file where is the draft for the couplings. They are for direct use without the detail from 14.11.2014 update. 8to10mm is ok with it ( with Base4DrillHolder.stl ). You will need 4 x M3 x 16 mm round headed bolts + 4 x M3 nuts for each coupling. The standart M0,8-M10 holder is more comfortable than these couplings, but mine seems to be defective (has a lot of wobble) and I shall use these for the start untill I change it. Some new pictures are added. Made a video ( https://www.youtube.com/watch?v=KCywfDDTD0Q&index=1&list=UUVWwj0KexccUnADqQqO8I4g ) with first test with motor speed 1 (sorry for the poor quality) on some PTFE piece. The tool is some dentist instrument. First I try with Rod Holder piece but a lot of vibrations occur (may be it will be usefull for some other cases).
Probably I will change the 2 toolholder parts so bigger object can be made on the lathe.
19.11.2014 - Toolholder parts reworked - made them 20 mm longer towards the motor, so bigger object may fit in the lathe. BasePart source file (with reworked toolholder drafts) reuploaded. Original .stl files of the toolholder are still available.
13.03.2015 - Made some clamps(for M5 nuts and bolts), so el. drill can be used as motor. Reuploaded MotorPart source file, so You can rework clamps to fit Your drill and because I did not calculate well the back clapm as You can see on the last photo ;). The thing is now final, there won`t be any change any more. Will do better and hopefully more semi-pro version in the future.
02.08.2015 - Ver. 2.0 soon...
03.08.2015 - http://www.thingiverse.com/thing:953820 ver. 2.0