tutley (Tyler)
User

Projects (6)

User Details

User Since
Aug 31 2016, 12:51 PM (67 w, 1 d)

Recent Activity

Wed, Dec 13

tutley committed rEGRET58eae26e94e6: Added felt removal tests and results (authored by tutley).
Added felt removal tests and results
Wed, Dec 13, 11:09 AM
tutley updated subscribers of T1510: Spool Arm.

@logan @MikeR I would like to try and adjust slice settings before adjusting the model. over extrusion will make the screw holes harder to line up as well as making the spool arm harder to put up when installed on a machine. @EricNugent can you try and tweek the slice settings on these parts to help with this issue? We can definitely adjust the model if need be but were trying to get away from fudging a parts dimensions for the sake of printing with ABS. We have a lot more options with Cura2 to help us get the parts as they are designed instead of messing with the models to get them to work with the limited slicing options in Cura.

Wed, Dec 13, 9:59 AM · Mini-Hibiscus

Thu, Dec 7

tutley added a comment to T1405: PETg Mini Into Cluster.

@logan for sure man. yeah lets get new parts on them then

Thu, Dec 7, 12:10 PM · Mini-Hibiscus
tutley added a comment to T1405: PETg Mini Into Cluster.

@logan The parts didn't break did they? I think we will be looking for molten/droopy parts after running in cluster, not cracked/broken like from a drop. I dont think we need to replace the parts.

Thu, Dec 7, 11:14 AM · Mini-Hibiscus
tutley committed rBANDEDTIGER9dd3328c3793: Added blower shroud v1.0.2 (authored by tutley).
Added blower shroud v1.0.2
Thu, Dec 7, 7:12 AM

Wed, Dec 6

tutley added a comment to T1405: PETg Mini Into Cluster.

@logan @karrad i think if testing goes well without filament then we will need to run it again with filament and see if that extra load on the motors has any adverse effects. This will add a bit of extra load to the extruder motor and x and y motors also. X because it will be pulling some filament off the reel sometimes as is makes a move toward x=0 and y because of the added weight of the part it's printing. but overall i think itd be good to test without filament before we spend the time updating parts

Wed, Dec 6, 2:57 PM · Mini-Hibiscus
tutley added a comment to T1405: PETg Mini Into Cluster.

@logan @karrad I think we could run them without filament. Just have them running some g code to see how they hold up under normal use in the cluster but dont actually print anything. Hows that sound?

Wed, Dec 6, 1:48 PM · Mini-Hibiscus
tutley committed rMINIHIB038aac4df08a: Increased gap for breakaway support for new slice (authored by tutley).
Increased gap for breakaway support for new slice
Wed, Dec 6, 11:54 AM
tutley added a comment to T1345: z-belt tension deforms z-tops.

@kent okay i can get this modeled up and ill print a few out to test

Wed, Dec 6, 11:34 AM · Mini-Hibiscus

Mon, Dec 4

tutley added a comment to T1344: Tensioner mechanism affects belt path.

@kent ive pushed a new x belt tensioner design (8817c8a8ad0a). This deflection still happens a bit but not as much as the old design. Let me know what you think. I will have cluster print some out for you to test

Mon, Dec 4, 1:15 PM · Mini-Hibiscus
tutley committed rMINIHIB8817c8a8ad0a: Updated x belt tensioner design (authored by tutley).
Updated x belt tensioner design
Mon, Dec 4, 1:14 PM

Fri, Dec 1

tutley created T1411: Bumper rubs on z belt.
Fri, Dec 1, 3:02 PM · Mini-Hibiscus
tutley updated subscribers of T1344: Tensioner mechanism affects belt path.

@kent ive got a new belt tension design that should correct this issue. Ive got a couple printing out. Also @Baldwin had another good idea for a tensioner. Once i install this design and verify it ill bring you one to try out. Im going to try making the one that @Baldwin suggested also.

Fri, Dec 1, 1:15 PM · Mini-Hibiscus
tutley added a comment to T1343: Tensioner mechanism only allows discrete tensions.

@kent i agreee if we widen it it should only be to make it tighter. And thats not a bad idea either!

Fri, Dec 1, 11:34 AM · Mini-Hibiscus
tutley added a comment to T1409: Once the x-belt is pulled out completely from the tensioner block it can't be put back in without removing the toolhead.

@kent yeah i have encountered this as well. Once your belt is tensioned though there should be no need to retension it since it cant really slip. This is more of a complication that could occur during assembly. We could try and open up the back side of the belt tensioner so that you can slip it back around the post, but then the posts that hold the tension arent going to be nearly as strong and could snap. Especially since the tension is held along layer lines. We can try a design of this style and see how it goes but i am worried about them breaking. Ill make up a few and we can give it a shot.

Fri, Dec 1, 11:15 AM · Mini-Hibiscus
tutley added a comment to T1344: Tensioner mechanism affects belt path.

@kent the x belt spans about 300mm. so thats one leg of the right triangle. The deflection is about 1mm on either side of the belt so you can say the other leg of the triangle is 2mm long. This would give a hypotenuse of sqrt (300^2 +2^2) = 300.0066666 That means that there would be a loss of accuracy of 6.6666 microns over 300mm. We claim 100 microns of accuracy in x and y. This is not a big deal. Even if each side is deflected 2mm (which it's not) then thats sqrt(300^2+4^2) = 300.026666 which is a loss of 26.66 microns over 300mm. So i really dont think there should be any concern about it not being completely parallel to the axis. The only real issue then is that some people may think it looks bad. We dont really have any room on the back side of the x carriage to incorporate a clamp design like the y axis has. You just cant get a screwdriver in there. In order to squeeze more build volume out of the z we had to make the x gantry more compact. We can look into a redesign of the x belt tensioner to make it parallel but we wont get much reward from redesigning it. I dont see what you mean by side loading the bushings? which bushings?

Fri, Dec 1, 10:38 AM · Mini-Hibiscus

Thu, Nov 30

tutley closed T1278: X Axis Cable Chain as "Resolved".

After discussing with @MikeR we cant find the machine that exhibited this behavior. I believe that it had a cable chain that didn't have 18 links. Its possible an extra link was added to one that already had 18 links and that would explain why the chain hit the frame. Im closing this ticket for now. We will keep an eye out for this behavior and re open if need be

Thu, Nov 30, 1:16 PM · Mini-Hibiscus
tutley closed T1349: Inconsistent part orientations per axis as "Resolved".
Thu, Nov 30, 12:50 PM · Mini-Hibiscus
tutley added a comment to T1349: Inconsistent part orientations per axis.

@kent we are moving to 100 steps per unit in X and Y as calculated so this is not going to be an issue anymore

Thu, Nov 30, 12:48 PM · Mini-Hibiscus
tutley updated subscribers of T1402: Extruder fan blower is loud.

@Baldwin i think that we need to have some profile testing with various fan speeds and see what the lowest speed we can run is before it impacts print quality. The slower speed should reduce the noise level, but it would be worthwhile to also get some sound level data on these printers with the fan running at various speeds and compare that to previous versions of the mini. @anolen would you be able to get some testing with various fan speeds on the aero toolheads? We can get you a fan shroud that will be on mini2 and install it on one your mini aero toolheads

Thu, Nov 30, 12:44 PM · Mini-Hibiscus
tutley added a comment to T1405: PETg Mini Into Cluster.

@karrad I asked logan to drop test the PETg hibiscus since he has it. If it survives the drop do you want to put that printer in the cluster as is or do you want it to be rebuilt with completely up to date parts in PETg when we rebuild all of the alphas?

Thu, Nov 30, 12:39 PM · Mini-Hibiscus
tutley reassigned T1404: PETg Droptest from kent to logan.

Hey @logan can you get this printer drop tested?

Thu, Nov 30, 12:38 PM · Mini-Hibiscus
tutley committed rMINIHIBd7bc8e5bef03: Removed v3 extruder mount (authored by tutley).
Removed v3 extruder mount
Thu, Nov 30, 12:25 PM
tutley added a comment to T1343: Tensioner mechanism only allows discrete tensions.

@logan i think we should keep x and y where they're at. There has only been discrete tensions for the y axis on gladiola with the "new" y belt mount/clamp style( with the teeth) and we haven't had issues with production falling in the 23-27N range. I do think the z axis needs to be a bit tighter than the x and y though. We could widen the tolerance for x and y if need be.

Thu, Nov 30, 8:55 AM · Mini-Hibiscus
tutley updated subscribers of T1289: Wiping Locatoin.

@logan I installed the new extruder mount on hibiscus 15 that @Steven has and it fixed the wipe location. Also it was missing the front right washer when probing and it now hits it. However it still barely touches that washer. @marcio we may need to shift the probing locations to the right a bit for a more consistent probe

Thu, Nov 30, 8:49 AM · Mini-Hibiscus

Wed, Nov 29

tutley added a comment to T1289: Wiping Locatoin.

@logan the wipe location shouldn't change. There are no changes to the sheet metal or the wiper pad location. It turns out the model for the extruder mount was placing the nozzle about 2.75mm back from where the nozzle on dodo is. This has been corrected with extruder mount v2. pushed to hibiscus. Cluster is printing some out now.

Wed, Nov 29, 9:10 AM · Mini-Hibiscus
tutley committed rMINIHIB2f7ab3a3c406: Adjusted extruder mount so nozzle sits in same spot as dodo (authored by tutley).
Adjusted extruder mount so nozzle sits in same spot as dodo
Wed, Nov 29, 9:05 AM

Tue, Nov 28

tutley added a comment to T1371: Number of teeth engaged by belt clamp is less than manufacturer recommendation.

@kent @Baldwin this is without shipping foam also

Tue, Nov 28, 3:38 PM · Mini-Hibiscus
tutley added a comment to T1371: Number of teeth engaged by belt clamp is less than manufacturer recommendation.

@Baldwin @kent We have roughly a 1kg mass for x gantry. With a drop from 1 meter (h = 1m), the potential energy is PE = m*g*h. Due to conservation of energy this is all converted to Kinetic energy right before it hits the ground. So m*g*h = (1/2)*m*v^2 This means v = sqrt(2*g*h) = sqrt(2*9.81*1) = sqrt(19.62) = 4.43 m/s . Impulse is a change in momentum so m*v_i = 0 and m*v_f = 4.43 m/s therefore the impulse is m (v_f - v_i) = 1kg ( 4.43 m/s - 0 m/s) this would give an impulse of 4.43 kgm/s or 4.43 N*s . Please correct me if I'm wrong. Also this is divided amongst the two z belts so each side should see 2.215 N*s

Tue, Nov 28, 3:28 PM · Mini-Hibiscus
tutley committed rMINIHIB73a27a2f62eb: removed V2 z uppers due to intersection with spool mount (authored by tutley).
removed V2 z uppers due to intersection with spool mount
Tue, Nov 28, 2:27 PM
tutley closed T1345: z-belt tension deforms z-tops as "Resolved".

The gusset location on z uppers v2 will not work because they intersect the spool arm mount. These have been stopped in the cluster. After a discussion with @kent we believe this issue is not as prominent as initially thought. We believe that the gap between the z upper and the frame made it look like the part was flexing a lot. When in reality the part doesn't flex very much at all. @kent and I are closing this ticket. I am removing these v2 z uppers from the repo.

Tue, Nov 28, 2:26 PM · Mini-Hibiscus
tutley added a comment to T1350: z binding.

@kent cool sounds good man!

Tue, Nov 28, 1:59 PM · Mini-Hibiscus
tutley added a comment to T1345: z-belt tension deforms z-tops.

@kent I have rev'd the z upper left and right to have a gusset that should prevent this flex. They are Z upper L/R V2. Pushed to Mini Hibiscus. I will get some printing in the cluster now

Tue, Nov 28, 1:35 PM · Mini-Hibiscus
tutley committed rMINIHIBeede574b1376: Added gussets to z uppers to prevent flex (authored by tutley).
Added gussets to z uppers to prevent flex
Tue, Nov 28, 1:34 PM
tutley added a comment to T1350: z binding.

@kent did you get a chance to replace the x end motor on this machine?

Tue, Nov 28, 1:27 PM · Mini-Hibiscus
tutley closed T1346: Belts clamped at an angle as "Wontfix".
Tue, Nov 28, 1:25 PM · Mini-Hibiscus
tutley reassigned T1349: Inconsistent part orientations per axis from tutley to marcio.
Tue, Nov 28, 1:08 PM · Mini-Hibiscus
tutley closed T1370: Belt tensioning system does not adhere to manufacturer recommendations as "Wontfix".
Tue, Nov 28, 10:34 AM · Mini-Hibiscus
tutley added a comment to T1370: Belt tensioning system does not adhere to manufacturer recommendations.

@karrad @kent @nickp Thanks Brent and Nick that helps a lot! The frays are mostly going to happen from the belts slipping while being clamped, not from being bent around too small of a radius. Also as @west stated both TAZ and MINI used to have their belts tightened extremely tight prior to gladiola and taz6. We only implemented belt tension meters into production when these printers hit the assembly line. I feel comfortable moving forward with the new tensioning systems at a 6mm diameter bend. Unless there are any objections I'm going to set this ticked to closed.

Tue, Nov 28, 10:34 AM · Mini-Hibiscus
tutley added a comment to T1370: Belt tensioning system does not adhere to manufacturer recommendations.

@karrad or was it that the belt was slipping? Ive seen y belts slip on gladiolas, but the mount and clamp were changed mid production to correct for this. Ive never seen a belt break on one of our printers

Tue, Nov 28, 9:25 AM · Mini-Hibiscus
tutley added a comment to T1370: Belt tensioning system does not adhere to manufacturer recommendations.

@kent the belt bends around a 6mm diameter loop on the x ends, x belt tensioner, and y belt tensioner ( this is the same diameter bend on the y belt mount which we used for all of gladiola production) while the minimum recommended sprocket diameter for a 2mm pitch GT2 is 7.13mm so we are just on edge of the minimum sprocket diameter. If this is major concern we can adjust that bend on all belt tensioning parts to meet the 7.13mm diameter. However, I dont forsee this causing any issues with our belts since we only tension them to around 30N. To my knowledge we haven't seen any issues with the integrity of the y belts on previous machines. Please correct me if I'm wrong.

Tue, Nov 28, 9:00 AM · Mini-Hibiscus

Mon, Nov 27

tutley added a comment to T1371: Number of teeth engaged by belt clamp is less than manufacturer recommendation.

@kent "The tooth shear strength is greater than the strength of the tensile member when at least six belt teeth are in mesh with sprocket grooves."

Mon, Nov 27, 3:37 PM · Mini-Hibiscus
tutley closed T1316: Longer screw for z-carriage idler as "Resolved".
Mon, Nov 27, 3:19 PM · Mini-Hibiscus
tutley added a comment to T1342: Set screws blocked by motor.

@kent we wouldn't need custom smooth rods for this to work mechanically, however if we choose to go to blind holes on the x end motor, we will have excess rod hanging out the end of the idler side, we could widen the idler to cover this up cosmetically, however my concern remains that we would be relying on belt tension to hold our x ganrty together, and if we went to blind holes, then the 25N from the belt would be held by 2 setscrews instead of 4. which is then roughly 12.5N on each setscrew

Mon, Nov 27, 3:18 PM · Mini-Hibiscus
tutley closed T1351: z-max endstop spade connections need to be bent as "Wontfix".
Mon, Nov 27, 3:13 PM · Mini-Hibiscus
tutley added a comment to T1346: Belts clamped at an angle.

@kent im not at all against continuous belts, but at the time when we discussed this option, there was a 6 to 8 week lead time for the belts we would need i9n production quantities. Also are these part numbers from Misumi for small quantities (onesie twosies) or are these for production quantities? We cant just make a few printers and then be forced to wait 6-8 weeks to build hundreds/thousands more. We need to be able to get production quantities well before we release this product. If you want to order some belts and mock one up im all for it. We would all like to see continuous belts, thats why TAZ7 will get them, but given our research into this before, it seemed unlikely to pull off by the time we release MINI2

Mon, Nov 27, 3:12 PM · Mini-Hibiscus
tutley closed T1280: Set Screws Z rod as "Wontfix".

@kent another problem with using blind holes in the z lowers is there is a gap between the top of the rod and the frame, and unless you sandwich the rod between the frame and the blind holes (not advised), the rod will be free to shift up and down and will essentially be "loose".

Mon, Nov 27, 2:48 PM · Mini-Hibiscus
tutley added a comment to T1316: Longer screw for z-carriage idler.

@logan sounds good hope to see a few prints of this soon

Mon, Nov 27, 2:47 PM · Mini-Hibiscus
tutley added a comment to T1342: Set screws blocked by motor.
Mon, Nov 27, 2:45 PM · Mini-Hibiscus
tutley added a comment to T1348: z-motor mount on left side has a fastener covered by controller.

@kent I dont think it would be advisable to just not install a fastener there as it would appear to the customer that we forgot one during assembly and would appear as an oversight on our part. It really isn't very hard to work around. I have been able to leave all connections attached to the RAMBO and remove the 4 screws and push the board to the side to get access to this screw. Have you tried doing this?

Mon, Nov 27, 2:32 PM · Mini-Hibiscus

Wed, Nov 22

tutley added a comment to T1350: z binding.

I inspected the binding on this printer and @kent and i believe it may be due to an issue with bushings on the x motor side. Id like to replace that part and see the one that came off that printer for further inspection

Wed, Nov 22, 2:27 PM · Mini-Hibiscus
tutley added a comment to T1295: X-Carriage Cap cable pathway fitment.

@logan looks great lets get a few printed out and give it a shot

Wed, Nov 22, 2:26 PM · Mini-Hibiscus
tutley added a comment to T1295: X-Carriage Cap cable pathway fitment.

@kent @logan it seems the alignment of the cable path from the cap and the x carriage is slightly off. we can easily adjust this in the x carriage cap by shifting the cable path back a little bit

Wed, Nov 22, 12:27 PM · Mini-Hibiscus
tutley added a comment to T1342: Set screws blocked by motor.

@kent yes the set screws being blocked by the motor is a trade off for more z build height and i think its well worth it.

Wed, Nov 22, 12:22 PM · Mini-Hibiscus
tutley added a comment to T1346: Belts clamped at an angle.

@kent is that not what we're doing? the new design is much easier to assemble and assembly correctly which is exactly what you're asking for. Have you even tried the new z belt clamps? Also i agree that with us doing the repairs and reworks we need to make it easy on ourselves, I'm actively trying to do just that. I haven't heard any suggestions from you on how to correct this issue just that you perceive it to be a problem.

Wed, Nov 22, 12:18 PM · Mini-Hibiscus
tutley added a comment to T1350: z binding.

@kent as @west mentioned, the EINSY needs the motors to be run in series so they get enough current. In parallel it acts as a current divider. Im guessing youre seeing "binding" when moving the axis up.

Wed, Nov 22, 11:00 AM · Mini-Hibiscus
tutley added a comment to T1348: z-motor mount on left side has a fastener covered by controller.

@kent While I agree that this complicates serviceability, this has been the case for all of MINI production, and since there is no change to the sheet metal on MINI2 there really is nothing we can do about this.. We would either have to move the RAMBO/EINSY location or move the mount location for the z lowers, both of which would require redesigns of sheet metal as well as printed parts

Wed, Nov 22, 10:42 AM · Mini-Hibiscus
tutley added a comment to T1342: Set screws blocked by motor.

@kent actually since theres 4 setscrews and 2 rods with one belt tensioned at 25N they each hold about 6.25 Newtons no? Again we cant be held accountable for things like the user
over tightening things or assembling them wrong. You can over tighten the lug nuts on your car and strip out the posts just like a user could over tighten the screw in a printed part and break it. Theres a reason for documentation of torque specs and we post those specs in our OHAI kits, we cant be held accountable for the user not following our instructions.

Wed, Nov 22, 10:37 AM · Mini-Hibiscus
tutley added a comment to T1349: Inconsistent part orientations per axis.

@kent I see what you mean however it shouldn't really matter that the steps for the axes are set differently, the issue is that the XY axes are set to 100.5 to compensate for ABS expansion where as the Z is set to a calculated value, if we set the steps to what they calculate out to then we should have no issues with alignment. XY should be 100 steps per unit

Wed, Nov 22, 10:29 AM · Mini-Hibiscus
tutley added a comment to T1350: z binding.

@kent we're looking at getting some higher torque motors for the z axis. We discussed higher torque motors with andy from moons this morning in our conference call. Also you might check that the slice isn't causing the precision bushing to sit crooked, which would definitely make this issue worse as it would increase friction. As far as i know that is the only machine that has had any binding issues. I think this will require further testing and investigation

Wed, Nov 22, 10:25 AM · Mini-Hibiscus
tutley added a comment to T1343: Tensioner mechanism only allows discrete tensions.

@kent i think we should have a 30-45 Newton tolerance for z belts with both sides being tensioned as close to each other as possible. And yes i do think that would be useful!

Wed, Nov 22, 10:22 AM · Mini-Hibiscus
tutley added a comment to T1346: Belts clamped at an angle.

@kent we already are making it less likely to be assembled at an angle with the new belt clamps. Also we cant be held accountable to what the user does to their own machine. They could re assemble all kinds of things wrong, that is not our fault though we just need to make sure it is assembled correctly when it leaves the factory. They could install their heat bed upside down, they could reattach the toolhead hanging off the side with only 1 screw, they can rewire it completely wrong, but thats not our fault. The design works with proper assembly.

Wed, Nov 22, 10:20 AM · Mini-Hibiscus
tutley added a comment to T1350: z binding.

@kent are you using full height NEMA 17's also what motor current are you running? is it on an EINSY or a RAMBO?

Wed, Nov 22, 8:58 AM · Mini-Hibiscus
tutley added a comment to T1342: Set screws blocked by motor.

@kent this is due to the fact that the x gantry guide rods are spaced closer together. This was so we could pull 180mm of build height out of the z axis without changing the size of the MINI. We could try using blind holes on the x motor side and get rid of the setscrews entirely but i am a little hesitant to get rid of the set screws altogether. the belt tension should hold the rods in the blind holes but then you are relying entirely on belt tension to hold together the x axis. This doesn't seem like a good practice

Wed, Nov 22, 8:40 AM · Mini-Hibiscus
tutley added a comment to T1343: Tensioner mechanism only allows discrete tensions.

@kent as I'm sure you're aware, this is because the belt teeth are interlocking to hold tension, so we essentially have steps of tension. we have a belt tension target range which should still be easily achieved using this method.

Wed, Nov 22, 8:36 AM · Mini-Hibiscus
tutley added a comment to T1344: Tensioner mechanism affects belt path.

@kent with the new style of tensioning the z belts this is not an issue. The belt tensioning collar does deflect the belt path away from the axis a tiny bit, however this collar is not needed for tensioning the z axis anymore, it can be used as a reduntant clamp or just to hide the slack. This still does deflect the belt path a small amount in the x axis but only by about 1-2mm or so. We can change the way the x belt is tensioned to get rid of this but i do not see it being an issue. Also both the MINI and TAZ6 have y axis belt paths that arent parallel to the y axis by a lot more than 1-2mm and we havent seen any issues there.

Wed, Nov 22, 8:34 AM · Mini-Hibiscus
tutley added a comment to T1345: z-belt tension deforms z-tops.

@kent we can likely add a gusset to prevent flex in this part. also increase density or shells in the slice

Wed, Nov 22, 8:25 AM · Mini-Hibiscus
tutley added a comment to T1346: Belts clamped at an angle.

@kent this sounds like an assembly issue. Also there has been a revision to the z belt clamps which prevent the stress marks from tightening and should also prevent the belts from being installed at an angle

Wed, Nov 22, 8:24 AM · Mini-Hibiscus
tutley added a comment to T1349: Inconsistent part orientations per axis.

@kent which parts are you talking about? the Y idler and Y motor?

Wed, Nov 22, 8:22 AM · Mini-Hibiscus
tutley added a comment to T1351: z-max endstop spade connections need to be bent.

@kent yes bending a conductor does weaken the material, but it only gets bent once and only to about a 45 degree angle, and as @west said with the EINSY likely being the new board we wont even have an endstop switch there. Also we do currently bend them on the finch toolhead as well as the standard toolhead for gladiola

Wed, Nov 22, 8:19 AM · Mini-Hibiscus
tutley added a comment to T1350: z binding.

@kent the same could be said about the lead screw driven z axis on TAZ 1-6 as well as the MINI since the lead screw is offset from the smooth rod and theres only 1 guide rod. The x and y axes on all of our machines have the drive component positioned equally between two guide rods so there isnt a moment on the bushings. This could be corrected in the z axis by positioning the belt in the middle of the guide rods, however i havent seen any hibiscus experience z binding. Have you actually seen a z axis bind up? Also we need to have the precision bushing be rigid in the part so the part doesnt experience both lateral and radial play about the guide rods.

Wed, Nov 22, 8:15 AM · Mini-Hibiscus

Tue, Nov 21

tutley committed rMINIHIB0191568280fc: Added older version of extruder mount for use with EINSY (authored by tutley).
Added older version of extruder mount for use with EINSY
Tue, Nov 21, 7:54 AM

Mon, Nov 20

tutley closed T1312: PC-MAX for z belt clamp as "Resolved".

Pushed to Hibiscus

Mon, Nov 20, 11:46 AM · Mini-Hibiscus
tutley committed rMINIHIB1d9ff3eca827: Updated Z belt clamp to get rid of stress marks when tightening (authored by tutley).
Updated Z belt clamp to get rid of stress marks when tightening
Mon, Nov 20, 11:45 AM
tutley added a comment to T1312: PC-MAX for z belt clamp.

@logan I just installed the new revision of the clamp with longer standoffs and now there is no whitening with good bite on the belt still. Im printing another set for you to try out right now.

Mon, Nov 20, 11:20 AM · Mini-Hibiscus
tutley added a comment to T1312: PC-MAX for z belt clamp.

@logan yea i can def do that. ill make those changes and get a few more printed out to try.

Mon, Nov 20, 10:52 AM · Mini-Hibiscus
tutley added a comment to T1312: PC-MAX for z belt clamp.

i will try both a thicker clamp and a horseshoe design

Mon, Nov 20, 8:15 AM · Mini-Hibiscus
tutley added a comment to T1316: Longer screw for z-carriage idler.

I think we should both deepen the pocket for the nut a bit and the chamfer for the screw to sit flush

Mon, Nov 20, 7:06 AM · Mini-Hibiscus

Thu, Nov 16

tutley added a comment to T1312: PC-MAX for z belt clamp.

i agree with @karrad that we should avoid introducing new materials in the cluster for production. I dont see the stress marks being an issue. Another problem with pc max is it doesn't adhere to PEI very well, and often needs gluestick to adhere which we cannot use for production parts as it would require a wash after printing. We would then be dumping lots of PVA water down the drain which is not ideal

Thu, Nov 16, 3:24 PM · Mini-Hibiscus
tutley added a comment to T1316: Longer screw for z-carriage idler.

M5 X 25mm would stick out of the nut by 3-4mm. we can pocket the nut holder on the part an additional 1-2mm for better engagement of the nylon.

Thu, Nov 16, 3:18 PM · Mini-Hibiscus
tutley added a comment to T1281: X Axis Belt Routing.

@MikeR after cutting away as much as possible on the x bearing holder, the belt only begins to rub when the toolhead is at the edge of the right side of the print bed. I believe this is as good as we can do, since people will rarely be printing on the edge of their beds anyways i think this belt will see minimal rubbing. I have pushed this to hibiscus. this is x bearing holder 3.5 please give it a try and let me know what you think

Thu, Nov 16, 1:34 PM · Mini-Hibiscus
tutley committed rMINIHIBb40b69cb2031: Updated x bearing holder to minimize belt rubbing (authored by tutley).
Updated x bearing holder to minimize belt rubbing
Thu, Nov 16, 1:34 PM
tutley added a comment to T1281: X Axis Belt Routing.

we could cut more material away from the bushing holder but im a bit concerned it might be too thin and break if we do that. there is a taper on that part already so the belt just barely rubs. i will model one with a deeper cutaway and try it out

Thu, Nov 16, 8:26 AM · Mini-Hibiscus

Wed, Nov 15

tutley added a comment to T1278: X Axis Cable Chain.

i suspect there may be a varying number of links in the x chain. the prototypes were built using x chains for gladiolas. These chains only have 17 links, where the hibiscus should have 18 links.

Wed, Nov 15, 12:49 PM · Mini-Hibiscus
tutley closed T1290: Spool Arm Alignment as "Resolved".
Wed, Nov 15, 12:46 PM · Mini-Hibiscus
tutley closed T1277: Spool Arm as "Wontfix".

this has always occurred with the spool mount arms for mini. Users likely wont be flipping their spool arm up and down very regularly, and ive never heard of it causing any issues.

Wed, Nov 15, 12:46 PM · Mini-Hibiscus
tutley closed T1285: Wiper Pad Damage as "Resolved".

this could also be adjusted by adjusting the z height for the wipe in the start g code.

Wed, Nov 15, 12:44 PM · Mini-Hibiscus
tutley closed T1279: Belt Slide Clamp as "Resolved".
Wed, Nov 15, 12:43 PM · Mini-Hibiscus
tutley added a comment to T1280: Set Screws Z rod.

also the rods are too long for blind holes. We were planning on using the same rods used in the older mini's. If we want to use blind holes then we would need to get custom rods at a shorter length.

Wed, Nov 15, 12:43 PM · Mini-Hibiscus
tutley closed T1282: Extruder Cable Harness as "Resolved".
Wed, Nov 15, 12:41 PM · Mini-Hibiscus
tutley updated subscribers of T1282: Extruder Cable Harness.

After seeing various installation lengths, myself and @MikeR agree that 90mm is a good length

Wed, Nov 15, 12:41 PM · Mini-Hibiscus

Nov 14 2017

tutley committed rZEBRAd3a8ee4c2899: added felt removal testing data (authored by tutley).
added felt removal testing data
Nov 14 2017, 2:46 PM

Nov 13 2017

tutley reassigned T1299: Hole Diameter from tutley to Baldwin.
Nov 13 2017, 11:04 AM · Yellowfin

Nov 10 2017

tutley closed T1287: Fan Shroud as "Resolved".

there is a new fan shroud in hibiscus that fixed this interference. @logan and myself have confirmed that this correction does fix the issue

Nov 10 2017, 1:55 PM · Mini-Hibiscus
tutley updated subscribers of T1285: Wiper Pad Damage.

@MikeR Have you actually confirmed it tears them up faster than the regular nozzles or is this more of a perception? I havent seen this and i know @Baldwin said he hasnt seen this either. This may be the case, however these nozzles are superior to the old nozzles used. So we wont be changing nozzles. Another thing to note is we state for customers to watch their probe sequence, so a bad probe should be caught by the user and they can clean their nozzle more if need be.

Nov 10 2017, 8:01 AM · Mini-Hibiscus
tutley committed rMINIHIB7f68678cf76a: Rev finch blower shroud for mini2 (authored by tutley).
Rev finch blower shroud for mini2
Nov 10 2017, 7:48 AM

Nov 9 2017

tutley added a comment to T1279: Belt Slide Clamp.

you have to slide the tensioning collar down until it is about 3-5mm above the x end. It should then clear the z pulley

Nov 9 2017, 3:44 PM · Mini-Hibiscus
tutley added a comment to T1280: Set Screws Z rod.

how tight are you torquing these to? they should only need 2-3 in*lbs to hold the rods.

Nov 9 2017, 3:43 PM · Mini-Hibiscus
tutley added a comment to T1282: Extruder Cable Harness.

I would recommend lengthening the harness on the toolhead side of the connector. If we extend the length from the cable chain beyond 80mm, were then shortening the wires on the rambo side of the harness by that amount. The toolhead assembly has some planned changes as is so we can lengthen the wires there.

Nov 9 2017, 3:41 PM · Mini-Hibiscus
tutley closed T1284: Z Uppers Tight as "Wontfix".

The holes need to be tight to prevent the rods from moving around. If you widen/ream out the holes you introduce radial play that will negatively impact print quality.

Nov 9 2017, 3:38 PM · Mini-Hibiscus