[donpdonp]

A year later I have dusted off the pieces I’ve gathered and I’m looking to make more progress. What I’m stuck at now is the pattern on the pieces of wood to follow to mount the PVC pipes. I’ve got the end-pieces printed out, but I dont have a guide for where on the wood they should be screwed into.

[donpdonp]

Q.Harley and hoff70, thanks very much for the extra detail. Now I can take the next steps on building the Morgan.

[donpdonp]

Also a question on the J-Head. It seems the Mark V is the latest, but there are variations on that such as the V-BV.

1) Should I get a MARK V or are earlier models just as good?

2) Do I need a seperate ‘hot end’ or is that part of the J-Head?

3) Do I need a ‘cartrige heater’?

This J-Head Mark V-BV is $55 but doesnt give the size of the extruder.
https://www.hotends.com/index.php?route=product/product&product_id=88

4) I’ve seen Mark V models sold at extruder size 0.3mm, 0.4mm, and 0.5mm. Which would work best with the Morgan?

Thanks again.

[donpdonp]

The github repo for the Z-mount parts shows two versions of top and bottom, an 8mm version and 12mm version.

https://github.com/qharley/Morgan/tree/master/stl

How do I decide which to use? Thanks.

[donpdonp]

Is there any problem with this approach:

instead of 15mm pipe, use 5/8″ (15.8mm)
instead of 22mm pipe, use 7/8″ (22.2mm)

Then get a 7/8″ step drill bit like the 22mm bit posted in this thread.

Without any modification to the printed parts, use the slightly larger step bit to widen the parts that connect to the 7/8″(22.2mm) pipe. It appears none of the bearings depend on the pipe being exactly 22mm (the 6805 has a 25mm ID) and the printed parts I would think could stand to be widened by 0.2mm without modification.

Is there anything I’m overlooking? Thanks.

[donpdonp]

Also how do you feel about the ‘Chinese Family’/Ryan Altair modification? I am amazed that it eliminates both large drive wheels and the copper tubing completely. Is this the way the Morgan could go, or is there some benefit to keeping the X/Y servos on the lower platform?

Thanks for the project in general! The Morgan makes me feel like a 3d printer of my own is within reach, and I am enjoying the learning/construction process.

[donpdonp]

Thanks for the answer and the link!

Do you know Will Adams and is there a way to get this bearning and the vxb.com URL into the Morgan KitBOM page that is linked from the reprap.org Morgan wiki page?

http://kitbom.com/WillAdams/reprap-morgan

Don

[donpdonp]

thanks for the tips, and the pics, hoff70!

im just not sure where to buy these bearings. VXB.com worked out for the other bearings but not these.

After some googling I found this
http://www.usabearingsandbelts.com/m7/1004070–6805-2rs-61805-2rs-6805-zz-61805-zz-ball-bearings-25x37x7.html

would that part do?

[donpdonp]

Thanks for the help so far.

two questions:

1)
the print head using a bearing of some sort but it does not appear on the KitBOM

Click to access RepRap_Morgan_Arm_Theta_assembly_instruction_and_BOM.pdf

“Bearing 61805″

I have the VXB.com 608ZZ10 bearings but that site doesnt seem to have a 61805.

2)
I went to the hardware store to get brass or copper tubing. Im in Oregon, USA and they only sell the tubes in imperial units.

The tube specs are 15mm and 22mm. The tubes in my store are 5/8″ or 15.8mm and 7/8” or 22.2mm. Is that a coincidence that the sizes are so close or will the imperial sized tubes work with the morgan parts?

Thanks!

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