Improvements I've made in the last year

Post improvements made for UP, and share ideas.
Fairly
Posts: 34
Joined: Sat Jun 30, 2012 1:17 am

Re: Improvements I've made in the last year

Post by Fairly » Thu Oct 04, 2012 5:40 pm

Guys, I can CNC these exact same parts out of 6061 T6 for way less than that.

How many people on here would be interested in an extruder mount (arm+body) ?

I'm camming up the Gcode for my own set now, depending on how many people are interested I could go as low as $100 bucks+shipping.

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Thu Oct 04, 2012 9:10 pm

Fairly wrote:Guys, I can CNC these exact same parts out of 6061 T6 for way less than that.

How many people on here would be interested in an extruder mount (arm+body) ?

I'm camming up the Gcode for my own set now, depending on how many people are interested I could go as low as $100 bucks+shipping.
Hi, I've sent you a private message about this, please respond before you begin taking orders.
Thank you
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

Fairly
Posts: 34
Joined: Sat Jun 30, 2012 1:17 am

Re: Improvements I've made in the last year

Post by Fairly » Fri Oct 05, 2012 7:53 pm

Hi All,

After corresponding with Drew I realized I can't offer his designs at a price where it would be worth the effort of a public offering.

The reason I'd held off from purchasing his parts initially was the high price, and after machining + royalties to Drew, it just didn't add up. Sorry Drew!

But!

The trucking company changed my CNC Mill's delivery date from today to Monday, and as I've already taken the day off, I have some time to kill. :)

I'm actually working on my own design for an extruder cover: A one piece design, cheaper and faster to machine, and just as awesome hopefully.
Hint Hint : The bearing is totally unnecessary! I'd been printing beautifully with a seized bearing for months, then after replacing it, I could find no measurable (or appreciable) difference in print quality! The tension against the extruder gear (and cooling the mechanism) is what to focus on. The stepper already has more than enough torque to deal with moving un-optimized spools, the friction caused by a steel spring plunger tip on the surface area of a pinpoint is negligible (especially when compared to the friction caused by the surface area of my once-seized ball bearing!).

My poor Up! extruder head has been taken apart several times today as I get clearances and measurements just right.

So, as far as this particular part is concerned I'm going to fade off into the background until I have something reliable, affordable, and without compromise to show you guys. :)

Image

Image

(forgive my prints have not been dressed up to be photogenic, that last one has the spring plunger aligned ideally, causing a too-thin layer on my .25 thickness print job.)

Blown454
Posts: 49
Joined: Fri Oct 12, 2012 6:13 pm

Re: Improvements I've made in the last year

Post by Blown454 » Thu Oct 18, 2012 1:58 pm

This thread is quite entertaining, just find myself a bit confused after reading pages 1-4. Thanks for ALL the insight and great ideas! :). I'm off to go do some reverse engineering of my own...

DytHlt
Posts: 63
Joined: Fri Dec 07, 2012 8:30 pm

Re: Improvements I've made in the last year

Post by DytHlt » Wed Dec 26, 2012 9:17 pm

I have to say, lots of great ideas here.
I've had my printer for only a week now, I immediately used Thermal Past on the build platform as Drew suggested. Then a couple days later I did the rubber column on the platform leveling piece and I must say, MUCH BETTER!
So much easier to level the platform, and it stays level now. I always check my platform level before starting a print, and since I put the rubber in there, I have only had to adjust the level once (after about 15 prints), and it was only barely off, would have printed just fine if I didn't check it.
For anybody else thinking of doing this, the RED Rubber Hose Washers at home depot work great. I checked them against the heat before using of course. I used just one washer and the stock screws that came with my UP! Plus.
These are the washers I'm talking about: (The red ones, not black. Found these in the Sprinkler Isle) http://www.homedepot.com/h_d1/N-5yc1v/R ... NtnfHfNnLQ

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Thu Dec 27, 2012 2:27 am

DytHlt wrote: For anybody else thinking of doing this, the RED Rubber Hose Washers at home depot work great. I checked them against the heat before using of course. I used just one washer and the stock screws that came with my UP! Plus.
These are the washers I'm talking about: (The red ones, not black. Found these in the Sprinkler Isle) http://www.homedepot.com/h_d1/N-5yc1v/R ... NtnfHfNnLQ
Great idea on those washers, make sure your screws have plenty of thread engagement (length) as they are small fine threads under lots of load and vibration and remember always tighten the screws never loosen to adjust.
Again nicely done. :mrgreen:
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

DytHlt
Posts: 63
Joined: Fri Dec 07, 2012 8:30 pm

Re: Improvements I've made in the last year

Post by DytHlt » Thu Dec 27, 2012 3:44 am

DrewPetitclerc wrote:
DytHlt wrote: For anybody else thinking of doing this, the RED Rubber Hose Washers at home depot work great. I checked them against the heat before using of course. I used just one washer and the stock screws that came with my UP! Plus.
These are the washers I'm talking about: (The red ones, not black. Found these in the Sprinkler Isle) http://www.homedepot.com/h_d1/N-5yc1v/R ... NtnfHfNnLQ
Great idea on those washers, make sure your screws have plenty of thread engagement (length) as they are small fine threads under lots of load and vibration and remember always tighten the screws never loosen to adjust.
Again nicely done. :mrgreen:
Ya, I'm thinking they include longer screws from the factory now, cause after adding the washer, I still have at least 5mm of thread engagement.

Garry
Posts: 37
Joined: Wed Jan 16, 2013 5:47 am
Location: Edmonton, Alberta
Contact:

Silicone Sheet Makes a Good Temperature Resistant Pillar

Post by Garry » Thu Mar 28, 2013 2:05 am

I had used the red rubber washers from Home Depot but I was having a little trouble leveling the platform because I thought the diameter of the washers was maybe a little too large. As is often the case in Canada, I was having trouble finding semi-specialized material: in this case high temp rubber to use to cut out discs. McMasterCarr won't ship to Canada and I could find nothing in small quantities on eBay. So bought a silicone bread pan from IKEA and cut discs from it. Glued them together with a bit of cyanoacrylate and voila - a heat resistant pillar. Its working very well. Made the pillar a bit on the tall side so I could get better clearance for larger clamps on the left side. Had some longer M3 screws so all is good.

jmog
Posts: 3
Joined: Tue Apr 15, 2014 3:50 am

Re: Improvements I've made in the last year

Post by jmog » Fri May 09, 2014 3:43 am

DrewPetitclerc wrote:Added cooling air jet directly to extruder gear assembly to prevent softening of PLA filament too soon, PLA is worst case (heat is transferred from motor and extruder hot block) this will hopefully apply to new main board upgrade where stepper motors run at even higher temperatures.
I currently run a hose from my compressor in the garage and have it adjusted to between 5 and 10 PSI (a whisper), later I plan to change this and use a small "muffing" fan with a printed duct to reduce down to the 4mm tube and run this way, this keeps extra mass off the extruder (adding another fan to it is not a good idea!) and I might even recirculate the air from my fume hood design back down to the air tube for cooling of the feed assembly or the build plate area.
Hi Drew,

Great design! Is it posible to get the metallic part you are using? I want to make this modification to my Up 2 printer.

Regards,
Joaquin

GrantWatson
Posts: 29
Joined: Wed Mar 20, 2013 9:53 am
Location: Western Sydney, Australia

Re: Improvements I've made in the last year

Post by GrantWatson » Fri May 30, 2014 11:36 am

I'll ask the question that I've been waiting for someone else to ask, but nobody seems to be doing. Anyone who has both and UP Plus and and UP Mini care to take a look to see if the Extruder mount can be used on the Mini as well? I'm on an ongoing quest to improve the longevity and print quality of mine.

Thanks!

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Tue Sep 09, 2014 5:55 pm

UP! extruder modification 4, Recreus Hot end
I decided it was time to get rid of the all steel barrel in my hot end so it would be more reliable with PLA and I wanted to try the new flexible rubber like materials and the new Recreus hot end looked to be a relatively easy mod to make to my "UP Plus Pro"
20140908_195012.jpg
20140908_195012.jpg (91.38 KiB) Viewed 17613 times
You can get the files here if you want to try it yourself:
http://www.thingiverse.com/thing:457420
So far it is working great!
Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

User avatar
JuliaDee
Posts: 959
Joined: Sun May 06, 2012 10:00 pm
Location: Connecticut
Contact:

Re: Improvements I've made in the last year

Post by JuliaDee » Tue Sep 09, 2014 5:58 pm

Drew, you rock, as always! Thanks for sharing.

julia

User avatar
josejuako
Posts: 479
Joined: Fri Aug 20, 2010 5:55 am

Re: Improvements I've made in the last year

Post by josejuako » Tue Sep 09, 2014 7:31 pm

Looks a very good system Up Pro always best Drew . Thank you for all !.

Jose

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Tue Sep 09, 2014 9:57 pm

JuliaDee wrote:Drew, you rock, as always! Thanks for sharing.
julia
Thanks Julia, just trying to stay current with the new materials, was actually a pretty easy redesign and the one machined part is simple enough for the average person to make.
Watch out though, I had to grind down about 1mm of the new M6 Recreus bore because it reduced the Z build below 125mm and the software did not like it, kept giving me an error saying I had to chose a number between 125 and 145.

Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Tue Sep 09, 2014 9:58 pm

josejuako wrote:Looks a very good system Up Pro always best Drew . Thank you for all !.
Jose
Thanks Jose.
Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

User avatar
JuliaDee
Posts: 959
Joined: Sun May 06, 2012 10:00 pm
Location: Connecticut
Contact:

Re: Improvements I've made in the last year

Post by JuliaDee » Tue Sep 09, 2014 10:07 pm

DrewPetitclerc wrote:
JuliaDee wrote:Drew, you rock, as always! Thanks for sharing.
julia
Thanks Julia, just trying to stay current with the new materials, was actually a pretty easy redesign and the one machined part is simple enough for the average person to make.
Watch out though, I had to grind down about 1mm of the new M6 Recreus bore because it reduced the Z build below 125mm and the software did not like it, kept giving me an error saying I had to chose a number between 125 and 145.

Regards
Drew
Thanks for the heads-up. I ordered the Recreus hot end an hour ago :)

julia

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Sun Sep 14, 2014 7:17 am

JuliaDee wrote:Thanks for the heads-up. I ordered the Recreus hot end an hour ago :)julia
Recent update,
I noticed some leakage around the hot block to nozzle and hotblock to barrel so I dismantled the extruder and found that the new barrel was broken.
I open palmed my forehead and realized the barrel was a M6 screw with a diameter 4mm bore, this meant a 1mm wall thickness but this meant after tapping the threads, at the root of the the threads there would only be about 0.500mm or less of wall thickness on a part that needs a lot of torsion to install and lock up.
In short the barrel unzipped into a slinky.
I've sent a request to Recreus for a replacement so now we shall see how responsive they are.
Watch out for the stresses on the barrel, it does not take much to break it.
Recreus 1 bad.jpg
Recreus 1 bad.jpg (74.86 KiB) Viewed 17541 times
I think they (Recreus) should have decided to go with a M8 thread and make the same increase to the nozzle tip then they could sell both and not have the issue.

Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Thu Sep 18, 2014 6:29 pm

DrewPetitclerc wrote:Recent update,
I noticed some leakage around the hot block to nozzle and hotblock to barrel so I dismantled the extruder and found that the new barrel was broken.
I open palmed my forehead and realized the barrel was a M6 screw with a diameter 4mm bore, this meant a 1mm wall thickness but this meant after tapping the threads, at the root of the the threads there would only be about 0.500mm or less of wall thickness on a part that needs a lot of torsion to install and lock up.
In short the barrel unzipped into a slinky.
I've sent a request to Recreus for a replacement so now we shall see how responsive they are.
Watch out for the stresses on the barrel, it does not take much to break it.
New Update,
The people at Recreus have wonderful fast customer service, they responded next day (Sunday) and shipped a new barrel the following Monday, it arrived 2 days later on Wednesday. Fantastic service!
The new barrel is also a new design, they increased the material thickness of the SST barrel and reduces the wall thickness of the PTFE tube, they also added a machined step with a nice chamfer for filament entry, the only question I have is the reason for a relief cut in the thread about 10mm from one end, maybe they have a reason but I can not figure it out.
Anyway, got it all installed and printer is very happy, now to try a few new materials.
Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

User avatar
DrewPetitclerc
Posts: 581
Joined: Sat Feb 12, 2011 7:39 am
Location: Silicon Valley California
Contact:

Re: Improvements I've made in the last year

Post by DrewPetitclerc » Thu Sep 18, 2014 6:40 pm

I've seen recently a lot of users wondering how to get better finish on the ABS parts.
My setup is based on the Presto Multi-Cooker/Steamer 06003, I add a small wire mesh stand where I've cut and bent alternate wires so all the parts are resting on sharp points.
In my setup the cooker (about $32.00) is setting on a lazy suzan turntable.
Presto Multi-Cooker Steamer 06003.jpg
Presto Multi-Cooker Steamer 06003.jpg (22.45 KiB) Viewed 17482 times
I use a plastic bottle with a dropper insert for the acetone application.
http://www.tapplastics.com/product/plas ... ensers/577
http://www.tapplastics.com/product/plas ... w_caps/232

1. I place the cold parts in the cooker, in basket, on wire mesh points.
2. Squirt about 2 table spoons of acetone into bottom of cooker.
3. turn heat up to warm, no need for high heat, acetone vapors at skin temp after all.
4. As soon as I see the acetone bubbling through clear lid, turn off heat and pull magnetic plug.
5. Observe how high the vapor line is if not enough to cover part, squirt a little more acetone in.
6. Spin cooker on lazy suzan to stir up vapor so all of part is covered.
7. Check part regularly, usually done in less than 3 minutes.
8. Lift basket out slowly so vapor pours back into cooker.
9. Place part in front of small fan to out-gas, put into freezer if reaction needs to be stopped right away.
10. Put basket and wire mesh back into cooker with another part, remaining acetone will work add more as needed.

My setup has a limit on part size, but I find it perfect for most everything I create.

Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

User avatar
JuliaDee
Posts: 959
Joined: Sun May 06, 2012 10:00 pm
Location: Connecticut
Contact:

Re: Improvements I've made in the last year

Post by JuliaDee » Thu Sep 18, 2014 6:52 pm

Spinning the whole cooker is a brilliant idea, Drew, thanks. Vapor settling to the bottom of the chamber is the biggest problem, as you end up with very uneven smoothing. I've toyed with various ideas for hand-cranked fan blades inside the thing but turning the entire chamber from the outside didn't occur to me. Does is really adequately distribute the vapor?

julia

Post Reply