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A New Machinist

upaa27

upaa27

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Hey all,

I have access to a 4 axis CNC mill and a lathe. I have just started working on them and just went in today with some copper and aluminum for around 3 hours and came out with these results.

This will be the heatsink(I will polish it tomorrow)
269783612.jpg

269783613.jpg


Here is the battery tube
269783616.jpg

Sorry about the blurriness
269783618.jpg


I have not finished the heatsink or the battery tube but I am going in tomorrow to hopefully finished smoothing it out, adding fins, drilling and threading it.

I am making it to fit 2 18650s and a 12mm module with 20mm diameter for a circular driver.

I am hoping to start making more hosts as I have a ton of aluminum cylinders sitting around and selling some of the hosts if you guys want. I will definitely take custom orders for hosts and heatsinks. I am liking machining in copper so I might just stick to making aluminum and copper hosts.

:thanks:
-upaa27
 
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rhd

rhd

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What file formats can you accept for the CNC work?
 
upaa27

upaa27

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rhd said:
What file formats can you accept for the CNC work?
Click to expand...

At the moment only g code but I am working on using inventorCAM which will allow me to use many more formats.

I can also take the measurements and do it by hand if that would work.
 
upaa27

upaa27

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Worked some more today and am almost done with the heatsink

269791923.jpg

Bach hole is to fit a round 20mm max driver with + contact on the bottom
269791924.jpg

This hole is a bit over 12mm for a module and a bit of heatsink compound or heat dissipation liquid. I made the hole smaller in the back so that the module doesn't slam into the driver and the wires can fit nicely.
269791927.jpg


Going to probably finish the whole host hopefully by next week. :D
 
upaa27

upaa27

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Tomorrow I am going to try to pick up a longer drill bit as my current one will not drill to the length I need for the battery tube.
 
sinner

sinner

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Very nice work ,looking forward to your designs. I started the same way! :wave:
 
IWIRE

IWIRE

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That's cool ! Good luck with your project ! I've been wondering about making hosts out of aluminum rigid conduit. I use a lot of it and always have scrap pieces left over.
Now that I've subscribed to this thread it will pop up on my phone and I can keep track of your progress :beer:
 
upaa27

upaa27

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Thanks Iwire!

I tested out the heatsink with a NDB7A75 set at 3.5a and it had duty cycles of up to 1 minute!

At the moment I am waiting for a die and a tap 3/4in 16 for both to thread the host. It should be arriving tomorrow.
 
IWIRE

IWIRE

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That's acceptable to me ! When you get it assembled it should be even better !
Do you know anything about small mills ? I have a little South Bend 8K lathe and I'm wanting to compliment it with a small mill. I've been looking at a Grizzly G0704. It has tapered roller bearings and a precision ground bed. Seems like that would be important, but I really don't know.

I'm not a machinist I'm just a tinkerer. My brother is a machinist but he only works with big machines.
 
upaa27

upaa27

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IWIRE said:
That's acceptable to me ! When you get it assembled it should be even better !
Do you know anything about small mills ? I have a little South Bend 8K lathe and I'm wanting to compliment it with a small mill. I've been looking at a Grizzly G0704. It has tapered roller bearings and a precision ground bed. Seems like that would be important, but I really don't know.

I'm not a machinist I'm just a tinkerer. My brother is a machinist but he only works with big machines.
Click to expand...

I have not used any manual mills at the moment but I know a lot of guys who use the Bridgeport mills for their work.

I use a JET metal lathe and a 4 axis tormach CNC mill
 
IWIRE

IWIRE

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upaa27 said:
I have not used any manual mills at the moment but I know a lot of guys who use the Bridgeport mills for their work.

I use a JET metal lathe and a 4 axis tormach CNC mill
Click to expand...

Thanks ! I'll keep researching. :beer:
 
IWIRE

IWIRE

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The Lightning Stalker said:
The Chinese mills can be a real pain to tram.
You won't go wrong with a Sherline, Taig, or Tormach.
Click to expand...

Thanks ! :beer: I'll check those out and see if I can find one at my price point. I found where the one I was looking at has a plastic gear that causes problems. I'd rather save up some money and get something I won't have to rebuild just to make it work.
 
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