Search found 528 matches

by zemlin
Fri Nov 17, 2017 12:55 pm
Forum: Hardware
Topic: Heat Shields?
Replies: 7
Views: 2202

Re: Heat Shields?

I haven't done anything like this. My expectation is that stainless steel would be the preferred material, as brass conducts heat fairly well. Stainless Steel sucks by comparison - 10%-20% of yellow brass.
by zemlin
Fri Nov 17, 2017 12:44 pm
Forum: Others
Topic: RINGING the electromechanical challenge
Replies: 37
Views: 10352

Re: RINGING the electromechanical challenge

My thought is that on the N2/N2+ the cross-rods supporting the extruder head are probably the biggest springs in the system. I'm swamped right now, but if nobody beats me too it, I will test that theory. If I'm right, magnitude of the ringing in either axis will be dependent on the placement in the ...
by zemlin
Thu Nov 16, 2017 10:03 pm
Forum: Hardware
Topic: New idea for insulating a hot end rapidly
Replies: 41
Views: 12105

Re: New idea for insulating a hot end rapidly

I checked the rating of the hose you linked to. And it’s only rated for 390°F (200°C). Do you think that is enough? If it is I have a similar product in a local shop with the same rating I would like to try out. The heavier hose is good to 500F. I will compare the thinner tube to what I've had on t...
by zemlin
Thu Nov 16, 2017 7:02 pm
Forum: Hardware
Topic: New idea for insulating a hot end rapidly
Replies: 41
Views: 12105

Re: New idea for insulating a hot end rapidly

Hadn't considered the potential benefits of insulation - and it's a simple enough task. My Makergear printer uses a glass-lined stretchy silicone sleeve. I decided I'd try these: https://www.mcmaster.com/#7569k12/=1aa7grf https://www.mcmaster.com/#2573k18/=1aa7gju If the second one ends up being a b...
by zemlin
Thu Nov 16, 2017 1:36 am
Forum: Hardware
Topic: Firmware for dummies?
Replies: 13
Views: 3662

Re: Firmware for dummies?

Took a close look at the machine tonight. It seems I was, indeed, overly optimistic about the over-travel available on this machine. There's not much slack beyond the current limits. On the Y axis there's probably 10mm at the front that could be gained by moving the endstop switch (prehaps not the c...
by zemlin
Tue Nov 14, 2017 8:06 pm
Forum: Hardware
Topic: Firmware for dummies?
Replies: 13
Views: 3662

Re: Firmware for dummies?

I did a little testing on this where I located a small test cube right at 0,0 to see where it starts to build on the plate, and the origin was about 5x5 in from the corner. Button pushing on the touch screen starts at the home origin and stops at 305, so in reality the build area is less than the ad...
by zemlin
Tue Nov 14, 2017 7:00 pm
Forum: Hardware
Topic: Firmware for dummies?
Replies: 13
Views: 3662

Firmware for dummies?

I have never ventured into the firmware mods, but for my N2+ build platform plans I’d like to make a minor change. From what I’ve seen so far, it seems the XY home position is at about -10x-10 from the build volume origin. The build area origin is offset from the corner of the plate by +5mmx+5mm. Fi...
by zemlin
Mon Nov 13, 2017 4:05 pm
Forum: User's Gallery
Topic: Warp Core/Game Room deco
Replies: 7
Views: 2961

Re: Warp Core/Game Room deco

That's quite the project. Well done!
by zemlin
Sat Nov 11, 2017 4:13 pm
Forum: Hardware
Topic: Carbon Fiber Print surface??
Replies: 13
Views: 4066

Re: Carbon Fiber Print surface??

You can buy a 0.25" MIC6 aluminum plate from McMaster for $47. Al has twice the thermal conductivity of glass, but they don't sell it in smaller thicknesses. I bought 2 12x12 sheets of 1/4" mic6 on eBay for $40. I'll be printing up some ePC add-ons to engage the clips. I get my PEI from M...
by zemlin
Fri Nov 10, 2017 11:32 am
Forum: Printing Settings
Topic: Printing a Balloon that can be inflated
Replies: 15
Views: 2907

Re: Printing a Balloon that can be inflated

@zemlin About how small is that part, we can obviously see it is on a finger but what were the measurements of the mold? How accurate was the product when compared to the design? The bead on the sealing surface is .5mm wide. The vents in the center are about 1.1mm wide. The overall length is 19.8mm...
by zemlin
Thu Nov 09, 2017 5:46 pm
Forum: Printing Settings
Topic: Printing a Balloon that can be inflated
Replies: 15
Views: 2907

Re: Printing a Balloon that can be inflated

DerRad1ra wrote:zemlin u mean the openings overprinted with tpu?

I printed a pla mold and used that mold to cast the part in silicone.
by zemlin
Thu Nov 09, 2017 3:16 pm
Forum: Printing Settings
Topic: Printing a Balloon that can be inflated
Replies: 15
Views: 2907

Re: Printing a Balloon that can be inflated

FYI, I have been messing around with printing molds for custom seals related to the day job. I printed the molds in PLA, and because the details in the molds are very small I used a .2mm nozzle and layer thicknesses down to .025mm. I was skeptical about getting the level of detail necessary, but the...
by zemlin
Wed Nov 08, 2017 9:30 pm
Forum: General
Topic: Bond Tech Extruders . Any good, whats the improvement?
Replies: 17
Views: 5823

Re: Bond Tech Extruders . Any good, whats the improvement?

I did not disconnect the breakout board - only the motors. I am aware of the thermal control issue and have noted the resistor mod to prevent it.
by zemlin
Wed Nov 08, 2017 5:24 pm
Forum: Feature Requests, Ideas, Wishes
Topic: Custom Controls/Command Buttons?
Replies: 8
Views: 2675

Re: Custom Controls/Command Buttons?

Good info, as usual Mr. Jetguy. Thanks.
Sounds like something to occupy an evening sometime soon.
by zemlin
Wed Nov 08, 2017 2:51 pm
Forum: Feature Requests, Ideas, Wishes
Topic: Custom Controls/Command Buttons?
Replies: 8
Views: 2675

Re: Custom Controls/Command Buttons?

Until they do this, simply upload your own custom gcode file and name it the name of your script. Not as nice as some shiny button, but gets the job done until this request is implemented. Yeah, that would work. So - the image that appears with Ideamaker files .... I haven't looked into it at all, ...
by zemlin
Wed Nov 08, 2017 1:25 am
Forum: Printing Settings
Topic: Printing a Balloon that can be inflated
Replies: 15
Views: 2907

Re: Printing a Balloon that can be inflated

walshlg wrote:a bit confused by the vid,, was the bellows printed in tpu??

In the text below the video it says the mold for the bellows was printed in PVA. Polyurethane was injected into the mold and the mold was dissolved when the urethane cured. Clever solution.
by zemlin
Wed Nov 08, 2017 12:55 am
Forum: General
Topic: Bond Tech Extruders . Any good, whats the improvement?
Replies: 17
Views: 5823

Re: Bond Tech Extruders . Any good, whats the improvement?

Just fwiw ... I recently swapped out my dual for the Bondtech. My upgrade was not just a bolt-on swap. The screw heads on top of the gantry slide interfered with the Bondtech body, so I needed to drill some clearance for the heads into the bottom of the extruder body. Also, the teflon feeder tubes w...
by zemlin
Tue Nov 07, 2017 5:40 pm
Forum: Printing Settings
Topic: Printing a Balloon that can be inflated
Replies: 15
Views: 2907

Re: Printing a Balloon that can be inflated

Would a Bellows-style device work? That might have a better chance of surviving the pressure and giving you the displacement you need. https://www.google.com/search?biw=1760&bih=1037&tbm=isch&sa=1&ei=Qu8BWsPuFYXAmwHwzoH4AQ&q=3D+printed+bellows&oq=3D+printed+bellows&gs_l=p...
by zemlin
Mon Nov 06, 2017 2:21 am
Forum: Hardware
Topic: Replacement XY drivers?
Replies: 40
Views: 15313

Re: Replacement XY drivers?

What ever you need to set your Vref to on Panucatt stepper drivers needs to be set to half that value. if you want 1.1volts, you need to set it to .55 volts. Originally I set mine to the same as the stock with the stock motors and I had issues with the motors over heating. the extruder motor was ac...
by zemlin
Sun Nov 05, 2017 6:24 pm
Forum: Hardware
Topic: Replacement XY drivers?
Replies: 40
Views: 15313

Re: Replacement XY drivers?

6 days in with my N2+ - still running test prints for the most part learning the machine's ins and outs. Based on info I picked up on this forum I had some Panucatt SD5984 on standby. Today I got my first lateral shift in a print. The drivers went in. Oddly, my machine was not stable with a Vref of ...

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