I'm looking for someone to CNC the part I have shown in these pictures out of ABS plastic. The diameter is 1.125" X 2.75" tall.

Where would you go to have something complex like this machined. I have the solidworks file for this part and can provide any file format off of that.








Regards,
Justin

 

Just from looking at the part drawings you posted, you are looking at multiple processes. There are sharp edges on the inside of the bore that will be VERY difficult to do on a mill. The only way I could see it getting done is to do the bore on a lathe and then transfer it to a mill for the rest of the process. Since you want it done in ABS you will have to be concerned with heat and deformation during the machining, which makes it time intensive.

I dont know how much of these things you need, but I could easily see 10 or 12 hours of machine time on this. In my shop that would come out to like $750 per part. You could cut this cost down a lot with some redesign.

 

I've taken a few guesses in my head, but dont have anything realistic....what is this thing??

 

It doesn't look that difficult, I see things like this come out of our shop all the time in Delrin. CCD shroud/mount?

 

that should be able to be done in two setups on a mill, one for the top, one for the bottom. if it is taking you 12 hours to make that from supplied cad, then you must be using some pretty old equipment. i can't see that taking more than 4-6 hours including programming. coolant will work wonders for keeping your part and tool at low temps.

 

Looks like you are planning on attaching this thing to a tube? If so get rid of that low sharp point it needs to be much bigger radius to fit properly.

 

jesus christ if he pays $750 dollars for a piece of plastic..

 

That could be done in a few setups on a mill, and I could still see it costing a good deal of money for a one-off part.

 

Nevermind, we found a local shop that is going to do it.

It's the lower portion of a merchandising stand for digital cameras. We are doing some durability test and need some test parts. We currently have SLA versions of this part, but wanted something more durable to do abrasion tests with.

Thanks,
Justin

 

Solidworks FTW!!!
I love solidworks and use it all the time at school, we even use it to design everything here from robots to formula cars.

 

Since the OP has a supplier, and doesnt need this thread to find one, I will continue to discuss this.

There are a number of areas of this part that you will have a hard time doing on a mill unless you have a heck of a tool maker on your staff. Inside the bore on the top of this part are 3 different angles all with shart edges. You could do this with a contour cut, but it would take a ton of passes in order to get it perfectly smooth as the OP wanted.

You also have a compound inside radius on the bottom part of the angle cut. This little dip is also rendered as smooth without steps. Again a ton of passes to get it smoothed out.

If this was a production run, the best way to handle this would be to build molds and cast this part. The buck would actually be much easier to mill than than the part.

 

just use some basic 3d programming to cut it and save a ton of time doing contours. the top could be done in a rough, pre-finish and finish operation. the bottom in a drill, rough and finish since it is simple 2d.

 

Sorry to beat a dead horse but I keep looking at this drawing and trying to figure out how I would go about machining it.
Most of the part looks pretty straight forward except one area on the inside of the bore. I may be looking at the drawing wrong though.
Is the angle at the bottom of the bore starting high near the center point of the object and getting lower as it goes twards the outside of the part ?
If indeed it is the way Iam seeing it I cannot imagine a way that this angle could be cut without using a lathe.

 

I have looked again have concluded that Iam looking at the drawing incorrectly.
The angle at the bottom starts high at the outside of the piece and gets lower near the center of the piece.

 

is this like the fleshlight version 2.0? lol

 

Just throwing my 2 cents into the discussion about how to produce this part.

Assuming tolerances are 0.003"

The bottom side is easy. Cut the center bore, cut the square pocket and drill the two holes.

Flip the part and index it.

For the top cut the pocket with a bullnose end mill that has the correct corner radius. The top lip is a simple 3D milling operation. Rough it out with the same bullnose endmill and finish it with ballnose and a 0.001" step over.

Total run time should be under 2 hours. ABS cuts fast so the bulk of the machine time is going to be in the 3D milling of the top lip. The part is small though.

Set up is straight forward. 3 or 4 jaw chuck mounted to the table. Programming should be simple too especially if you use something that works well with soldiworks

 

I love this thread. Want me to make that for you in about 2 hours from set-up to shipped? Actual cut time for that is probably about 1.25 hours for the first piece, production could be limited to as little as 1/2 hour per piece, and that's probably conservative. It's not as complicated as you guys are thinking, he has it drawn in CAD. Toolmakers were replaced with CAM, this is the 21st century. Conventional mills are now used as oversized drill presses and tool makers are either retired or moved into programming, 13 years+ here.

 

send it to ProCNC located in Bellingham Wa. These guys are top notch.

 

so you're the bastard responsible for those stupid camera stands at target, lol