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Re: threaded rod instead of belts

this is amazing! and you told me it wasn't worth it! hows the print quality? I am excited to see the next videos

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Re: threaded rod instead of belts

nicholas, I realized I have some rods that are similar to what you are using. I got them from some old ibm tape drives. only problem is that they are 3/4" thick, I assume I'll need to beef up the...

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Re: Grounded Experimental Delta Printer

Quotenicholas.seward @pjoyce42: You can print it in the orientation given. Most printers can bridge that far. It may sag but you have tons of layers until you get to the gear part so most printers...

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Re: LISA Simpson

Many moons ago the starting point was: Heavy smooth rods + support rods / what ever cost something Drive screws cost << the normal rod set for a printer this size I think I can still convince my...

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Re: LISA Simpson

I want one, it looks so smooth! (tu) Lead Screw Wobble: A bigger lead screw is the way to go, or you'll hear complaints. Straightness of the lead screw varies, poor shipping and handling practices...

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Re: threaded rod instead of belts

I'm not at all sure you would need bigger motors. A lot would depend on how much friction the follower nuts on the screws turned out to have. The thread pitch would also play a big part in how well...

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Re: LISA Simpson

Thanks, that was nice present for Friday evening. :-) While it would be nice to see the large screws, I am not convinced it is worth the extra bucks. I am willing to buy the screws for you, if you...

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Re: Rumba Microstepping Jumpers

Are you having the same problem with the same motors and the same board? If not it might be better to start a new thread. The first thing to check is the data sheet on your motors and see what their...

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Re: LISA Simpson

Cross posted on this thread: DIY $1500 Metal Printer [forums.reprap.org]

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Re: LISA Simpson

Excellent Work! You and your students are fantastic. I would not publish the 7/16 screw version without test building it first. You never know about the gotchas until you try. Unless there is an...

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Re: LISA Simpson

If you want to get exotic with the wood, you can get 25mm birch plywood. It's not as easy to find as the 18 mm stuff. There are a few places that used to go even thicker than 25mm. I have not tried to...

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Re: LISA Simpson

Arm jitter: At 35 seconds into the video I believe I saw the arm furthest from the viewer jitter. The other two arms nearest the viewer made the transition smoothly. Any idea what happened?

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Has anybody tried 3mm filament in airtrippers filament drive for rostock?

Has anybody tried 3mm filament in airtrippers filament drive for rostock? I've heard that 3kg is neccesary to get 3mm filament to extrude on a good extruder. My motors are rated 4.8kg/cm at 2.5amp...

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Re: LISA Simpson

I would like to see Hall Effect Sensors employed, as they are very accurate, and would complement the lead screw drive nicely. I think this style is cheaper and easier to install than the Hall-0 type....

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Re: LISA Simpson

This is a great design! Would there be any reason NOT to enclose this on all three sides (using a door, obs)? My workshop has constant traffic in and out and drafts are in abundance. 2 full plywood...

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Re: LISA Simpson

Homemade precision nuts You can make your own precision (zero backlash) nuts with a low melt point bismuth allow, Cerrosafe is one of the more popular trade name. Print a nut shell with maybe 1 mm...

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Re: LISA Simpson

You can get the casting alloy from: [www.rotometals.com] It has lead in it, so it's going to be a bit of a chore to dispose of in this day and age. They also have most of the traditional Babbitt...

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Re: Has anybody tried 3mm filament in airtrippers filament drive for rostock?

The bigger the gear the more torque required to deliver a specific amount of force. The units are length X force rather than length / force. [en.wikipedia.org] You are delivering a required amount of...

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Re: LISA Simpson

Withouth springs there is no endplay I could detect se we are good there. This design is end stop free and will probably remain that way. It is very easy to manually home the design and I have it...

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Re: LISA Simpson

@nicholas.seward Dia 7/16" lead screw: Cool, bigger = better (tu) Sleeves: Tell me more about the design, is it's purpose to act as an anti backlash nut? Does it prevent the main nut from rotating,...

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