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Re: My first build - 5 years ago

So, I've discarded the linear guides in favor of round linear bearing and rods. Started on design and CAD. Checked out the Vulcanus Max 40. Thanks for that tip. Next question - separate X and Y motors or CoreXY? Is there any advantage to using one or the other? Thanks in advance. Kev

by kattz - CoreXY Machines

Re: My first build - 5 years ago

Question - Ballscrew or leadscrew? Ballscrew would require a lot less torque for the Z-axis lift.

by kattz - CoreXY Machines

Re: My first build - 5 years ago

Quotedc42 Quotekattz Controls? I haven't a clue yet. I'm good with robotics and PLC programming, but C and other coding frustrates me. I will use a Rumba board because it seems to have everything I'll need, want WiFi, Ethernet, and a small HMI or touchscreen. Rumba supports 6 stepper drivers (enough for a 3-input Diamond hot end), but does not have WiFi or Ethernet. Any WiFi or Ethernet add-o

by kattz - CoreXY Machines

Re: My first build - 5 years ago

Quoteorbitalair Followed from your other thread. FolgerTech has better prices. I think linear rails are way overkill. Go watch Tech2C corexy build on youtube. 10-12mm rods are perfectly fine for positioning molten plastic threads. I'd use the carbon fiber tubes like he did. But I am a RepRap minimalist anyways, see SmartRap Mini 2, the scary printer. Dunno rumba, Duet can run all that stuf

by kattz - CoreXY Machines

Re: My first build - 5 years ago

Quotejinx hi all the best with your first build, but E3D dont produce the diamond HE its made by RepRap Me like your choice of boards with the rumba you seen the one made by makerbase like the fact its got the header for there touch screens. You're absolutely right! Thanks for the correction! Kev

by kattz - CoreXY Machines

Re: My first build - 5 years ago

Everyone please note - I mis-typed the name of the multicolor hot end - it's an E3D Diamond. Sorry for any confusion. Thanks. Kev

by kattz - CoreXY Machines

Re: My first build - 5 years ago

Done! Thank you. Kev

by kattz - CoreXY Machines

Re: Short intro and looking for some direction - 5 years ago

Everyone, thank you! I moved this conversation to here. Regards, Kev

by kattz - Mechanics

Re: Short intro and looking for some direction - 5 years ago

QuoteTrakyan $500 dollars in parts? Bloody heck, I'd be paying more than that for the extrusions alone... Where is this place everyone gets their extrusions that I can't seem to find. You wont need to do much programming, mostly just configuring. Telling the firmware what the printer dimensions are, steps/mm, etc. Simple stuff. With a firmware like RRFW or smoothieware these tend to be even easi

by kattz - Mechanics

Re: Short intro and looking for some direction - 5 years ago

Decent! I noticed that you used ballscrews instead of leadscrews last night. I was considering the same thing. Any reduction in table accuracy? Kev

by kattz - Mechanics

My first build - 5 years ago

I appreciate all of the information from people answering my first post in the General forum. I want a stable machine capable of carrying the Dragon multicolor head, and is built like a brick outhouse. I looked at the CoreXY machines, and they seem elegantly simple. Does anyone have an accurate 3D model of the Dragon hot end with all five colors?(doesn't have to be printable) Initially, I plan

by kattz - CoreXY Machines

Re: Short intro and looking for some direction - 5 years ago

I appreciate all of the information as I said, and many thanks. I looked at the CoreXY machines, and they seem elegantly simple. Does anyone have an accurate 3D model of the Dragon hot end with all five colors?(doesn't have to be printable) Initially, I plan on running a single head for run-in and testing, and will add the Cyclops, and then the Dragon in turn as things progress. So, I've consi

by kattz - Mechanics

Re: Short intro and looking for some direction - 5 years ago

I worked P&W's and GE's during my time. Both are works of art. Kev

by kattz - Mechanics

Re: Short intro and looking for some direction - 5 years ago

First, thanks to everyone for the many suggestions and information. I received more responses here than any other forum, which was zero elsewhere... so thanks. I got it on the axis definitions regarding the printers. In my world, every robot maker I've used (Fanuc, Yaskawa, Kuka, IAI, Panasonic, ABB, Roboarm) is as I said, whether in Germany, Japan, Canada, or the US. External axes are usuall

by kattz - Mechanics

Re: Short intro and looking for some direction - 5 years ago

QuoteTrakyan Quick note/nitpick. The bed on a prusa moves in the Y axis. General convention is Z is up/down, Y is towards and away from you, and X is left and right. No big deal but it makes it easier for everyone when talking when they're talking about the same axis. You're right though that for a printer that size a moving Y axis bed is a no-go. Thanks for the feedback, Trakyan. Interesting o

by kattz - Mechanics

Short intro and looking for some direction - 5 years ago

Hello, I am new here. I am a retired USAF F-16 crewchief, and I have been working in the robotics/machine design/automotive manufacturing engineering field for 20 years. I am looking for guidance. I have been using a DaVinci 1.1 printer that I bought off of Craigslist for $200. I purchased it to prototype some new designs for the servo gearboxes on my telescope mount. It served its purpose

by kattz - Mechanics