You Big Dummy!!!!

[Yooper]

I was thinking about running copper pipe through a mini refrigerator to make an air dryer. Have a small dropout tank after the refrigerator. But I scored a refrigerated air dryer off of Craigslist and that was the end of that. But I think it would work for a hobbyist just fine. Having a tank of water inside with the pipes running through it would make it better by storing the cold so to speak. That is the same principle on the one that I bought.

 

[Hugo Habicht]

Hello,

great result once you figured the ground connection !

This is one fine piece of equipment you have there. Would you mind posting a picture showing the whole CNC cutter and the rough dimensions?

If I have one complaint about this machine, it would be that the small'ish holes tend to not come out well.

I am not sure but I feel the big holes are the same as the small holes, only the bigger diameter covers up the imperfections.

How do you start the cut and how does the movement look like? Maybe by modifying the movement you can improve the small holes. So start in the centre and spiral outwards and maybe doing two full circles instead of one.

Alternatively you could try to put an egg shaped hole into the CAD system for the small holes, basically compensating for the error in the cut.

But having said that: I would be very happy having a machine like this producing those results.

Kind regards,
Hugo

 

[Yooper]

You do realize you will be making more of those, right?

 

[Runs With Scissors]

You do realize you will be making more of those, right?

View attachment 145445

Ohh SNAP!

Thats an awesome idea for the QC Tool post adaptors.

I was thinking of having my SIL print some of these, but now I am torn.....Damn it man!

 

[Runs With Scissors]

I was thinking about running copper pipe through a mini refrigerator to make an air dryer. Have a small dropout tank after the refrigerator. But I scored a refrigerated air dryer off of Craigslist and that was the end of that. But I think it would work for a hobbyist just fine. Having a tank of water inside with the pipes running through it would make it better by storing the cold so to speak. That is the same principle on the one that I bought.

Yep, and thats part of the problem. I have to finally make a "decision" and then follow through.

My hobbies are quickly surpassing(have surpassed) my time off and budget...hahahah

Good problem to have I suppose, keeps me busy and thinking.

For now my "air dryer" set up should be "good nuff". It might cost me some amount in consumables, but it should be "better than nothing".

I have considered making the "refrigerator idea" though.

 

[Runs With Scissors]

Hello,

great result once you figured the ground connection !

This is one fine piece of equipment you have there. Would you mind posting a picture showing the whole CNC cutter and the rough dimensions?



I am not sure but I feel the big holes are the same as the small holes, only the bigger diameter covers up the imperfections.

View attachment 145417

How do you start the cut and how does the movement look like? Maybe by modifying the movement you can improve the small holes. So start in the centre and spiral outwards and maybe doing two full circles instead of one.

Alternatively you could try to put an egg shaped hole into the CAD system for the small holes, basically compensating for the error in the cut.

But having said that: I would be very happy having a machine like this producing those results.

Kind regards,
Hugo

Thanks for the supportive comments.

I have a program called "SheetCam" that "Auto-Magically" takes care of the cut patterns, and it has options to "lead in" and "lead out" the cutter, depending on the situation.

Smaller holes just tend to be "more problematic" due to the kerf, and other variables like consumable wear, grounding problems etc.....

I am certainly no expert, but I am "muddling through".

I will take some pics of the set up today with the dimensions and post them.

 

[Lil Foot]

You do realize you will be making more of those, right?

View attachment 145445

 

[Sidekick]

View attachment 145476

Once he gets a CNC mill .

 

[Russell King]

Smaller holes just tend to be "more problematic" due to the kerf, and other variables like consumable wear, grounding problems etc.....

You might want to just consider locating the center point of the hole and just gouge or pierce the metal. Then use a (step) drill bit to get the hole size needed.

That can eliminate the hardness of the steel making it difficult to drill holes out to make them round and the drift in location when you use a twist drill in a non round hole

 

[Runs With Scissors]

You might want to just consider locating the center point of the hole and just gouge or pierce the metal. Then use a (step) drill bit to get the hole size needed.

That can eliminate the hardness of the steel making it difficult to drill holes out to make them round and the drift in location when you use a twist drill in a non round hole

Yep, I think this is a good idea in future parts if I can't figure out how to "cut" them more accurately.

 

[Sidekick]

how to "cut" them more accurately.

Have you considered a fiber laser 🫣.