The new machine has arrived

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highpockets
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Re: The new machine has arrived

Post by highpockets »

Looking good!
What's the gearing on the 4th axis?
John
Maker of Chips

LittleGreyMan
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Re: The new machine has arrived

Post by LittleGreyMan »

Congratulations for the first chips.

Very promising.
Best regards

Didier

W7 - Aspire 8.517

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Rcnewcomb
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Re: The new machine has arrived

Post by Rcnewcomb »

What's the gearing on the 4th axis?
10:1
- Randall Newcomb
10 fingers in, 10 fingers out
another good day in the shop

Mobius
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Re: The new machine has arrived

Post by Mobius »

Rcnewcomb wrote:First cuts in pink foam. The sound on the video is my pancake air compressor. the CNC machine is very quiet.

I use pink or blue foam for initial tests because it is much more forgiving if I get the speeds or feeds wrong, or if my Z is off. I'd rather drive the bit into foam than MDF.
firstcut01.jpg
FirstCut02.jpg
Six second YouTube video: ->Link
Ha, the way that thing looks like it is built I don't think they make MDF thick enough to slow that beast down.
Connor Bredin
Distinctive Dimensional Concepts Ltd.
www.distinctive-concepts.ca

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Rcnewcomb
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Re: The new machine has arrived

Post by Rcnewcomb »

Definitely exercised the tool changer today. I did one project with 4 different tools, others with 3 tools. In the past I'd try to minimize the number of tools needed for a project because of the risk introduced when changing bits and getting the Zs to match. That is no longer an issue -- everything lines up perfectly.

I've been playing around with speed and was doing some cutting at 300ipm in the XY, and Z.

One part of the learning curve for me is using tabs. My old setup had a vacuum table which worked really well. But since my "shop" is my garage in a very residential neighborhood I opted to go with mechanical hold downs. On the last project of the day I underestimated how many and where to place the tabs. Lesson learned.

The Z is consistent enough that I may just use onion skin. More experiments in the future.
- Randall Newcomb
10 fingers in, 10 fingers out
another good day in the shop

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