My extruder mount is rocking!

A forum dedicated to the stock LulzBot TAZ 3D Printer
wantmys2000
Posts: 83
Joined: Fri Mar 06, 2015 11:01 am

Re: My extruder mount is rocking!

Post by wantmys2000 » Tue Mar 17, 2015 9:56 pm

Gotcha, makes total sense. Thanks for the clarification on the R2's extruder, thats a damn small direct drive!

Your video looks just like my TAZ did. Throw some better bearings on there and never look back! There is still some play in the tool head from the way the swappable head mounts, but that can be tightened up with 2 extra screws in the top corners.

Thanks!
Steven

billyd
Posts: 234
Joined: Thu Mar 12, 2015 11:06 pm

Re: My extruder mount is rocking!

Post by billyd » Wed Mar 18, 2015 11:18 am

wantmys2000 wrote:Gotcha, makes total sense. Thanks for the clarification on the R2's extruder, thats a damn small direct drive!

Your video looks just like my TAZ did. Throw some better bearings on there and never look back! There is still some play in the tool head from the way the swappable head mounts, but that can be tightened up with 2 extra screws in the top corners.

Thanks!
Steven

Steven, I've read the other thread and I'm still not super sure about what to order. Could you list the specifics, such as the exact part number of the bearings. The link to McMaster Carr just takes you to the site. Also on the rod, not sure how long to order (I'm not in front of my printer right now, but would love to get everything on order).

wantmys2000
Posts: 83
Joined: Fri Mar 06, 2015 11:01 am

Re: My extruder mount is rocking!

Post by wantmys2000 » Wed Mar 18, 2015 11:58 am

Sure, I ordered everything from Misumi, they are the supply house that Lulzbot uses as well. I have included the Misumi part #, qty, etc below. This is the part list to replace X & Y. I left my Z alone as it was tight.

Linear rods are all 500mm long, 10mm in diameter.

These part #s are exact part numbers and define all the params of the parts like length, hardening, etc.

Part #, Description, Qty, Unit Price, Amount
PSFU10-500, Hardened LINEAR SHAFT - 500mm, 4, $18.69, $74.76
LMU10, Linear Bushings, 7, $5.99, $41.93

Misumi Links:
Linear Rods - http://us.misumi-ec.com/vona2/detail/11 ... 3%3A%3A500

Bearings - http://us.misumi-ec.com/vona2/detail/11 ... arch=LMU10

billyd
Posts: 234
Joined: Thu Mar 12, 2015 11:06 pm

Re: My extruder mount is rocking!

Post by billyd » Wed Mar 18, 2015 12:50 pm

wantmys2000 wrote:Sure, I ordered everything from Misumi, they are the supply house that Lulzbot uses as well. I have included the Misumi part #, qty, etc below. This is the part list to replace X & Y. I left my Z alone as it was tight.

Linear rods are all 500mm long, 10mm in diameter.

These part #s are exact part numbers and define all the params of the parts like length, hardening, etc.

Part #, Description, Qty, Unit Price, Amount
PSFU10-500, Hardened LINEAR SHAFT - 500mm, 4, $18.69, $74.76
LMU10, Linear Bushings, 7, $5.99, $41.93

Misumi Links:
Linear Rods - http://us.misumi-ec.com/vona2/detail/11 ... 3%3A%3A500

Bearings - http://us.misumi-ec.com/vona2/detail/11 ... arch=LMU10
Outstanding, much appreciated. I went ahead and ordered the Y's too, but right now they are rock solid.

danl
Posts: 5
Joined: Sat Mar 07, 2015 7:06 pm
Location: Minnesota

Re: My extruder mount is rocking!

Post by danl » Thu Mar 19, 2015 12:06 am

Having read about sag due to the heavy heads, why not go to, say, 12mm dia. rods and bearings if going to the trouble and cost to change?

wantmys2000
Posts: 83
Joined: Fri Mar 06, 2015 11:01 am

Re: My extruder mount is rocking!

Post by wantmys2000 » Thu Mar 19, 2015 5:47 am

The 10mm bearings have the exact same dimensions as the stock IGUS bearings. That means it's a simple part swap. If you went to 12mm you would need to redesign new bearing holders for X and Y carriage, print new Z guides, print new Y end brackets, and drill out all the aluminum plates. Lots more work, much greater chance of messing the machine up.

Thanks!
Steven

danl
Posts: 5
Joined: Sat Mar 07, 2015 7:06 pm
Location: Minnesota

Re: My extruder mount is rocking!

Post by danl » Thu Mar 19, 2015 8:11 am

All that for 12mm...a lot. Thanks for answering.
Ordering a Taz 5 for early April delivery. This forum is a major selling point.
Best,
Dan

discojon
Posts: 432
Joined: Sat Mar 07, 2015 1:54 pm

Re: My extruder mount is rocking!

Post by discojon » Sat Mar 21, 2015 10:24 am

Thanks! Ordered the parts for x & Y axis's.
wantmys2000 wrote:Sure, I ordered everything from Misumi, they are the supply house that Lulzbot uses as well. I have included the Misumi part #, qty, etc below. This is the part list to replace X & Y. I left my Z alone as it was tight.

Linear rods are all 500mm long, 10mm in diameter.

These part #s are exact part numbers and define all the params of the parts like length, hardening, etc.

Part #, Description, Qty, Unit Price, Amount
PSFU10-500, Hardened LINEAR SHAFT - 500mm, 4, $18.69, $74.76
LMU10, Linear Bushings, 7, $5.99, $41.93

Misumi Links:
Linear Rods - http://us.misumi-ec.com/vona2/detail/11 ... 3%3A%3A500

Bearings - http://us.misumi-ec.com/vona2/detail/11 ... arch=LMU10
TAZ 5, Open rails X,Y,Z. Marlin 1.1 RC2. Mangrove dual fan, reinforced extruder mount

billyd
Posts: 234
Joined: Thu Mar 12, 2015 11:06 pm

Re: My extruder mount is rocking!

Post by billyd » Wed Mar 25, 2015 5:35 pm

wantmys2000 wrote:Sure, I ordered everything from Misumi, they are the supply house that Lulzbot uses as well. I have included the Misumi part #, qty, etc below. This is the part list to replace X & Y. I left my Z alone as it was tight.

Linear rods are all 500mm long, 10mm in diameter.

These part #s are exact part numbers and define all the params of the parts like length, hardening, etc.

Part #, Description, Qty, Unit Price, Amount
PSFU10-500, Hardened LINEAR SHAFT - 500mm, 4, $18.69, $74.76
LMU10, Linear Bushings, 7, $5.99, $41.93

Misumi Links:
Linear Rods - http://us.misumi-ec.com/vona2/detail/11 ... 3%3A%3A500

Bearings - http://us.misumi-ec.com/vona2/detail/11 ... arch=LMU10


Edit: Never mind! It's so easy!


I got the parts today. Before I start disassembly, do I need any special printed parts for the install, or do I use all the stock Taz 5 parts? (Just remove the existing rods and bushings and replace them?)

Thanks again!

billyd
Posts: 234
Joined: Thu Mar 12, 2015 11:06 pm

Re: My extruder mount is rocking!

Post by billyd » Wed Mar 25, 2015 6:56 pm

OK did the X-Axis install just now. Literally takes 5 or 10 minutes. There's very little to do. Loosen the grub screws on the top x-axis rod and slide it out. Remove the two plastic bearings. The left one (when facing the back) comes right out. The right hand one you have to lift away from the printed holder and then slide it out. I use one of the old 10mm rods to pry it up while pushing it out to the right. Then you slide in the new bearings and slide the new rod through, and tighten the grub screws at each end. Next loosen the two grub screws for the bottom rod and slide it out. You'll have to remove the bottom printed bearing holder. Remove it's four screws. Then use an old 10mm rod and pry the plastic bearing out of that holder. Then press in the new bearing, and screw the holder back on lightly. Then slide the new x axis rod in for the bottom and tighten the grub screws. Finally tighten the holder while applying pressure skyward.

Done.

What a HUGE improvement. Zero slop in the X axis. Amazing difference. Lulzbot has to start providing this new hardware with their printers.

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