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Hey,I need a little help, i want make adapter from milwaukee 18v tool to other brand battery. I am weak at 3d modeling, my skills are basic tinkercad skills, but I found milwaukee m18 battery model. :)Battery looks like:Attachment 16323I need to isolate this red parts, but i failed in fusion 360... Can someone give me this in 3 parts (in stl)? Here is m18 battery 3d model:https://grabcad.com/library/milwaukee-m18-battery-1
looks like you need someone au-fait with fusion 360 - so that rules me out :-)
No format there I can use.
There is a .step file in the link but if it help i can export full project to:
List of file types which can be exported from Fusion 360:
- Autodesk Fusion 360 Archive Files (*.f3d).
- Autodesk Inventor 2018 Files (*.ipt).
- DWG Files (*.dwg).
- DXF Files (*.dxf).
- FBX Files (*.fbx).
- IGES Files (*.igs *.iges).
- OBJ Files (*.obj).
- SAT Files (*.sat).
- SketchUp Files (*.skp).
- SMT Files (*.smt).
- STEP Files (*.stp *.step).
- STL Files (*.stl).
I'm not rocket scientist when it comes to Fusion 360 but some things I can handle okay. Would you consider to upload to this forum the .f3d and .stl files, perhaps also the .stp/.step files? I don't want to add yet another account (grabcad) and it won't let me download without signing in.
in attachment .zip
(f3d, fbx, ipt, obj, step)
f3d and step files from link above,
other files are my exports
I've been able to confirm why you've had a problem in Fusion 360. The F3D file as well as the OBJ file confirms that there are only two pieces involved in the model. The main body is one piece, including the red forward side "buttons." The other red locking segment is the other body which would slide out on its own and not perform as one might expect.
Thingiverse has a few Milwaukee M18 postings, but I do not know your objective, and cannot determine suitability for your project. The files you've shared will not perform in the manner indicated.
Ohh... I thought that the buttons could be easily isolated from this model. Anyway thanks, i will try "separate" it in tinkercad.Quote:
Originally Posted by fred_dot_u
I know the locking segment won't work, but I'm going to remodel it slightly so it should work.I know, but nothing fits my expectations...Quote:
Originally Posted by fred_dot_u
The way I understand the mechanics of the battery latch assembly, there is an interconnect between the red forward side buttons and the red aft latch sections. I would also expect a separation between the left and right sides, which is currently not in effect with the red aft latch sections. If you can locate any 3D model file which accurately represents that separation and interconnection, regardless of the rest of the model, it would be useful to determine the modification required on your current model.
UPDATE: I'm working on splitting out the forward red buttons as a separate body. I'm running into complications using Boolean Intersection (errors from F360) and hope to make adjustments to my train of thought to enable the process. From what I've found, it would be quite challenging to split out the button segment in Tinkercad. Just as the aft latch structure is a single part, the current approach is to make the button structure a single part. This would make it easier to segment each of those in a more controlled manner, allowing for full function as desired. It might take me a day or two to get my head on straight.
Attachment 16330
The above is a screen capture of the F360 window showing the primary body.
Attachment 16331
This one shows the main body ghosted with the single piece latch assembly previously constructed and the newly constructed single piece button assembly. As you can see, there are no fillets in the new section. I'm working on figuring out how to use Boolean Intersection without angering the program.
I'm making a bit more progress and have run into a smaller snag, but have posted a request for assistance to Reddit.
Attachment 16334
I've been able to remove the forward button assembly and effectively duplicate it as a separate body. This action left a hole in the middle of the main body and converted it to a collection of surfaces, no longer a solid. As such, attempting to put walls on the tunnel has been a failure, but I'm hopeful the Reddit-world will have an answer.
Of course, this is only part of the objective. One would expect the left forward button and the left aft latch to be joined and to be independent of the right button and latch. Additionally, I'd expect there would be provision for a spring or two in the center of the assembly.
But wait, there's more. The above portion is not likely to be impossible, once I learn more of the program and get the tunnel vision resolved. The impossible part comes when one expects to 3D print this model.
Knowing that it is not practical to do so, I would appreciate a few words from @inspire in order to better understand the objective, at least for this model in this state.
This milwaukee part will be cut few mm below "red parts",
Attachment 16335
and connected to other brand batteries
Attachment 16336
what finally give me something like this
Attachment 16337
The point is I have few new milwaukee tools and one milwaukee battery, while I have a dozen or so other brand batteries. So this top part (milwaukee) should work like original or very similar.
I've posted to reddit looking for a solution to the "tunnel" question, but so far there has been no response. I'm a bit disappointed, but it could be that it's the weekend and perhaps suitable answers will appear when people return to work on Monday. I suspect that once the tunnel problem is solved, I'll have to join the fore and aft sections with an additional block, use that to cut a new channel through from front to rear (which will automatically create the tunnel) and then split the joined sections to allow for springs to be inserted and to allow for travel left and right.
I've found how m18 battery looks inside
https://youtu.be/cawrRuSCoVY?t=180
That was an enlightening video. I'm amused at the spring sound as the top is removed. It sounds like "it's going to be difficult to put those springs back together!" Perhaps not. You have the advantage that you don't need the lower part and the clearance shown in the video. That means the two moving parts can be split into four and then rejoined to form something that works the same way as that shown in the video.
Found more :)
https://www.lithiumbatterypcb.com/wp...ccessories.jpg
I'd forgotten about this "project" as other, higher priority matters have recently arisen. Did you find any engineering drawings to go along with that beautifully exploded part image collection?
Unfortunately noQuote:
Originally Posted by fred_dot_u
fred_dot_u, do you have any progress?
unfortunately no but I am feeling better and may be able to proceed in the next day or two
Partly due to my limited skills and other health-related factors, I think I've gotten as far along on this project as I can get.
The body is a single piece, with a "gate" to allow the joined button/latch assemblies to pass through. The button/latch assemblies have been cut in such a way to leave 8 mm between the faces. You should be able to create recesses for springs, which is the expected action for the buttons on a battery pack.
It's important to note that these cuts are zero clearance. This means that if you print them as-is and your printer is precise, there will be no clearance between moving parts. Typically, a 3D printer creates objects just slightly larger than the model, which means they won't fit unless modified from this point.
I was unable to attach the last screen capture in the first message:
thanks for your help :)
If you make progress on this project, please to consider to post your results here.