New Arrivals

30 01 2009

Got a bunch of gear in the mail this week:
img_3144

laser safety goggles, tuned to the 808nm infrared of the cutting laser. Here is the spec sheet. These are model EP-5, so they have OD3. OD5 is ideal for the power range we are working in, but OD3 is INSUFFICIENT  better than nothing. To be on the safe side, I plan to only operate the power lasers in an opaque enclosure. 

img_3155A variety of lenses for shaping the beam path.

img_31571

Pretty.

img_3158Same lens.

 

img_3161

Tiny Tiny beam splitter. 

img_3146An finally the new geared motor for the new pinch pulley extruder, with the perfect timing belt pulley on it’s end.





Coming Soon

24 01 2009

I took a page from zach’s design, for the latest hercules extruder:

nema17_4

img_3131

This ended up not working very well. Not enough torque or grip overall. I just purchased this geared motor. Zach mentioned having issues actually getting his hands on the Kysan motor his design uses. I’m impatient, so I’m going to design around another motor, BUT try and follow Zach’s design as closely as possible otherwise.





Another Iteration

17 01 2009

I still need another iteration in the design, but getting close:

 
img_3067

Now we have a lighter nema 17 motor, and better balanced on the x carriage:img_3079





More Hercules Extruder activity.

16 01 2009

Zach is doing R&D on the Hercules Extruder





Hercules Extruder Redesign

15 01 2009

I did a from scratch redesign of the hercules extruder  now using the nema17, mounted above the x carriage for best balance. Looks like this:

hercules_nema17herc_nema17_cutouts





Hercules Extruder in action

10 01 2009

Hercules Extruder in action:





Hercules Extruder for real

9 01 2009

Very happy to have this hercules extruder  sitting on my desk.  Shout out to Max Steiner for time on his machine. 

img_3035

 

Nothing fit correctly! I had to file down just about every surface, but it’s very close. I need to add wiggle room for all of the holes.
img_3038

Here it is installed. 

img_3041

It’s quite heavy, and puts significant torque on the x-carriage. 

img_3047





Third pass at the Hercules Extruder

2 01 2009

So the latest design hasn’t even been made at ponoko… and I already see it is flawed. I decided to restart from the beginning… now that I have a digital caliper, and understand sketchup better. Here is the latest:

hercules03

I’m not rounding the corners till the end, because it’s easier to edit with square corners. Also, I’m keeping the the panels themselves 2D, easier to work with.





Hercules Extruder 3D

29 12 2008

Still cutting my teeth with sketchup. Here is the hercules extruder in 3D:

hercules_3d

 

 

The sketchup-svg-outline-plugin is great for producing laser cuts for Ponoko. I recommend this sketch-svg tutorial.

Added the trapped nut cutouts:

trapped_nutThis intersect model tutorial was essential for making the trapped nut cutouts.

I just ordered v1 of the extruder from ponoko:

herc_ponoko





Hercules Extruder

21 12 2008

I’m working on fabricating the Hercules extruder for the reprap. It is simpler then the current extruders, and it just looks sturdier and more reliable.  The lasercuts look like this:hercules_extruder

Haven’t tried these out yet. Here is the sketchup file








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