User:Dorkmo/Builds/CircularKnitic: Difference between revisions
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Attempting to build a [[OSE CircularKnitic v18.03]] machine. Updating the design files along the way. | Attempting to build a [[OSE CircularKnitic v18.03]] machine. Updating the design files along the way. | ||
=BOM= | |||
===Tools=== | |||
*5.5 end wrench - [https://www.grainger.com/product/MOODY-TOOL-5-5mm-6LEZ6 grainger] | |||
*2.5 Hex driver L - [https://www.grainger.com/product/EKLIND-L-Shape-Ball-End-Hex-Key-with-4CR82 grainger] | |||
*2.5 Hex screw driver - [https://www.grainger.com/product/WIHA-TOOLS-2-5mm-Hex-Insulated-Screwdriver-53KF02 grainger] | |||
===Nuts & Bolts=== | |||
*M3 x 25 - [https://www.fastenal.com/products/details/86007?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Cmanufacturer:%5EHOLO-KROME Fastenal] | |||
*M3 x 20 - [https://www.fastenal.com/products/details/86006?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Cmanufacturer:%5EHOLO-KROME Fastenal] | |||
*M3 x 12 - [https://www.fastenal.com/products/details/0137182?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Cmanufacturer:%5EHOLO-KROME Fastenal] | |||
*M3 x 10 - [https://www.fastenal.com/products/details/86003?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Cmanufacturer:%5EHOLO-KROME Fastenal] | |||
*Square Nuts M3 - [https://www.fastenal.com/products/details/0161907?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600072%20Nuts%22%7C~%20~%7Ccategoryl3:%22600086%20Square%20Nuts%22%7C~%20~%7Csattr01:%5EMetric$%7C~ Fastenal] | |||
*M2 x 12 - [https://www.fastenal.com/products/details/0137182?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600040%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr01:%5EMetric$%7C~%20~%7Csattr04:%5EM2-0.4$%7C~%20~%7Cmanufacturer:%5EHOLO-KROME Fastenal] | |||
*M2 Nuts | |||
===Bearings=== | |||
*NTN Bearing [https://us.misumi-ec.com/vona2/detail/221000058378/?CategorySpec=00000044000%3a%3aa%09unitType%3a%3a1%0900000044017%3a%3amig00000001454977%0900000043985%3a%3amig00000001455783&Inch=0&curSearch=%7b%22field%22%3a%22%40search%22%2c%22seriesCode%22%3a%22221000058378%22%2c%22innerCode%22%3a%22%22%2c%22sort%22%3a1%2c%22specSortFlag%22%3a0%2c%22allSpecFlag%22%3a0%2c%22page%22%3a1%2c%22pageSize%22%3a%2260%22%2c%2200000044015%22%3a%22a%22%2c%2200000044035%22%3a%22b%22%2c%2200000044031%22%3a%22b%22%2c%2200000043966%22%3a%22a%22%2c%2200000044021%22%3a%22mig00000001454974%22%2c%2200000043967%22%3a%22mig00000001455792%22%2c%2200000044024%22%3a%22a%22%2c%2200000043984%22%3a%22a%22%2c%2200000044007%22%3a%22b%22%2c%2200000044039%22%3a%22b%22%2c%2200000044000%22%3a%22a%22%2c%2200000044017%22%3a%22mig00000001454977%22%2c%2200000043985%22%3a%22mig00000001455783%22%2c%22fixedInfo%22%3a%22MDM000038605022210000583781%7c18%22%7d&Tab=codeList MiSUMi] or NSK Bearing [https://us.misumi-ec.com/vona2/detail/221000531116/?HissuCode=MR105 MiSUMi] | |||
===Electronics=== | |||
*https://www.mouser.com/ProductDetail/Cosel/PBA75F-12-N?qs=7%252b9h8EK%252bkyuJ0545jeaWQA%3D%3D | |||
**https://www.alliedelec.com/product/altech-corp/ps-7512/70075527/ | |||
*https://store.arduino.cc/usa/arduino-motor-shield-rev3 | |||
**https://www.mouser.com/ProductDetail/Arduino/A000079?qs=sGAEpiMZZMsyTxkJnMM1W05qedAfM53YGil6u%2F3w8qE%3D | |||
*https://store.arduino.cc/usa/arduino-uno-rev3 | |||
Stepper - PKP243D08A2 - [https://catalog.orientalmotor.com/item/42mm-pkp-series-2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors/pkp243d08a2?__hstc=62166835.a4abea4a98a288534502f90ff637ff22.1551402315584.1551402315584.1551402315584.1&__hssc=62166835.9.1551402315584&__hsfp=1451263049 Oriental Motor] | |||
=Build Log= | =Build Log= | ||
===March 23, 2019=== | |||
*changed how the aluminum angle is mounted to the mountain | |||
*incrased the thickness of the p4 yard holder base | |||
*still trying to get the end of the groove to transition smoothly to pPspace | |||
[[Image:CKp4-tweak1.png|400px]] | |||
===March 10, 2019=== | |||
*Updating [[OSE_CircularKnitic_v18.03#To_Do]] list based on notes from this build | |||
*Going to start build of larger diameter machine with these updates | |||
**Documenting here [[User:Dorkmo/Builds/CircularKnitic-Grande]] | |||
===March 9, 2019=== | |||
*think it might be good to use Flat socket cap screws so that the the head doesnt protrude and block the removal of plates | |||
**https://www.fastenal.com/products/details/86258?r=~%7Ccategoryl1:%22600000%20Fasteners%22%7C~%20~%7Ccategoryl2:%22600039%20Sockets%22%7C~%20~%7Ccategoryl3:%22600042%20Flat%20Socket%20Cap%20Screws%22%7C~%20~%7Csattr02:%5EM2-0.4$%7C~%20~%7Csattr02:%5EM3-0.5$%7C~%20~%7Cmanufacturer:%5EHOLO-KROME[REG]$%7C~ | |||
===March 3, 2019=== | |||
*Noticed that the mountain shelf didnt seem to fit perfectly | |||
**measured cut plates from sculpteo, theyre measure at about 0.134inch / 3.40mm. A little bit thicker than 1/8" (0.125)inch. | |||
**i think this may have caused a little bit of the seperation under the mountain | |||
**by sandwiching the mountain wings i think this will make it more tolerant of imperfect measurements of plates | |||
[[Image:CK20190303-shelfchange.png|300px]] | |||
===March 2, 2019=== | |||
*I had these motors for something else and decided to use them, but i think they might be overkill | |||
*:[https://catalog.orientalmotor.com/item/2-phase-bipolar-stepper-motors/42mm-pkp-series-2-phase-bipolar-stepper-motors/pkp246d15a2 PKP246D15A2] | |||
**Arduino Motor Shield seems to be overheating when connected to one, acting sporadically | |||
**Steppers are rated at 1.5amp per phase, Motor Shield rated at 2amp per channel, but no active cooling | |||
**As a stopgap solution i stacked 4 Motor Shields, and pointed a fan at the stack. (Sounds like competitive CPU Overclocking, but for motor sheilds, lol) | |||
***ran 1 phase off of each of the two bi-polar motors to its own motor shield | |||
**Seems to be able to run continously now | |||
*used paperclips for weighing down threads | |||
**bent a paperclip in half, creating a hook on each end | |||
**hang smaller side off of thread | |||
**connected two of the paperclips to an unaltered paperclp, then added about 4 more. | |||
**connected all of the bottom clips to a keychain ring | |||
**placed a plastic bowl in the center, filled a plastic bag with water, placed in bowl | |||
*While running, it seems that occasionally a loop will not come up to the top of the needle as it moves down | |||
**This causes the loop to prevent the latch from opening, then it seems to skip the next loop | |||
**Not sure if this is being caused by the loose fit of c2 and c3 (large c2gap), or that p4 needs to be adjusted | |||
***in turn if p4 needs to adjust i think the travel of the needle pushdown will also need to inscrease | |||
**Or perhaps more tension before feeder thread? | |||
**In the video below you can see a few places where the output looks pinched | |||
<html><iframe width="560" height="315" src="https://www.youtube.com/embed/I-umY3QzAnA" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html> | |||
===February 28, 2019=== | |||
*Got steppers running | |||
**using the arduino motor driver, i dont think it can microstep so its a bit jerky it seems | |||
**probably could slow down a little | |||
**also noticing that the gap between the cut plates and the wall could be smaller | |||
*Casted on for the first time | |||
**did pretty good for a few rounds but started to miss a few needles | |||
**the thread bunched up on the yarn holders, i think more weight is needed to pull down | |||
*tried using a series of paperclips to attach weights. used a cordless drill as a weight | |||
**seemed to work, but diameter seems to shrink as it lowers, need to maintain width | |||
**will test different layouts | |||
[[Image:CKpics-20190228.png]] | |||
===February 23, 2019=== | |||
*Got most of the mechanical parts assembled | |||
*Still need to build a weight and paperclip system to pull down | |||
*ended up using 1x1" square aluminum tubing for base support, seems pretty good | |||
*Need to figure out stepper driver setup | |||
**Using arduino and a sparkfun AutoDriver | |||
[[Image:CK-pics.JPG]] | |||
===February 19, 2019=== | |||
*Got parts in from 3Dhubs and Sculpteo. Everything looks good. | |||
*Should get bearings and bolts later this week. | |||
*Discovered an obvious bug with the current design. | |||
**Needle unable to slide easily into slots | |||
**Thankfully can twist into position on this print. Will use. But also tweak design for future prints. | |||
**Need to raise/trim the top of groove on p3, or cut into base a little bit | |||
[[Image:CK-Bug-Needlebutt.png|400px]] | |||
===February 15, 2019=== | ===February 15, 2019=== | ||
Latest revision as of 03:46, 24 March 2019
Attempting to build a OSE CircularKnitic v18.03 machine. Updating the design files along the way.
BOM
Tools
Nuts & Bolts
- M3 x 25 - Fastenal
- M3 x 20 - Fastenal
- M3 x 12 - Fastenal
- M3 x 10 - Fastenal
- Square Nuts M3 - Fastenal
- M2 x 12 - Fastenal
- M2 Nuts
Bearings
Electronics
- https://www.mouser.com/ProductDetail/Cosel/PBA75F-12-N?qs=7%252b9h8EK%252bkyuJ0545jeaWQA%3D%3D
- https://store.arduino.cc/usa/arduino-motor-shield-rev3
- https://store.arduino.cc/usa/arduino-uno-rev3
Stepper - PKP243D08A2 - Oriental Motor
Build Log
March 23, 2019
- changed how the aluminum angle is mounted to the mountain
- incrased the thickness of the p4 yard holder base
- still trying to get the end of the groove to transition smoothly to pPspace
March 10, 2019
- Updating OSE_CircularKnitic_v18.03#To_Do list based on notes from this build
- Going to start build of larger diameter machine with these updates
- Documenting here User:Dorkmo/Builds/CircularKnitic-Grande
March 9, 2019
- think it might be good to use Flat socket cap screws so that the the head doesnt protrude and block the removal of plates
March 3, 2019
- Noticed that the mountain shelf didnt seem to fit perfectly
- measured cut plates from sculpteo, theyre measure at about 0.134inch / 3.40mm. A little bit thicker than 1/8" (0.125)inch.
- i think this may have caused a little bit of the seperation under the mountain
- by sandwiching the mountain wings i think this will make it more tolerant of imperfect measurements of plates
March 2, 2019
- I had these motors for something else and decided to use them, but i think they might be overkill
- Arduino Motor Shield seems to be overheating when connected to one, acting sporadically
- Steppers are rated at 1.5amp per phase, Motor Shield rated at 2amp per channel, but no active cooling
- As a stopgap solution i stacked 4 Motor Shields, and pointed a fan at the stack. (Sounds like competitive CPU Overclocking, but for motor sheilds, lol)
- ran 1 phase off of each of the two bi-polar motors to its own motor shield
- Seems to be able to run continously now
- used paperclips for weighing down threads
- bent a paperclip in half, creating a hook on each end
- hang smaller side off of thread
- connected two of the paperclips to an unaltered paperclp, then added about 4 more.
- connected all of the bottom clips to a keychain ring
- placed a plastic bowl in the center, filled a plastic bag with water, placed in bowl
- While running, it seems that occasionally a loop will not come up to the top of the needle as it moves down
- This causes the loop to prevent the latch from opening, then it seems to skip the next loop
- Not sure if this is being caused by the loose fit of c2 and c3 (large c2gap), or that p4 needs to be adjusted
- in turn if p4 needs to adjust i think the travel of the needle pushdown will also need to inscrease
- Or perhaps more tension before feeder thread?
- In the video below you can see a few places where the output looks pinched
February 28, 2019
- Got steppers running
- using the arduino motor driver, i dont think it can microstep so its a bit jerky it seems
- probably could slow down a little
- also noticing that the gap between the cut plates and the wall could be smaller
- Casted on for the first time
- did pretty good for a few rounds but started to miss a few needles
- the thread bunched up on the yarn holders, i think more weight is needed to pull down
- tried using a series of paperclips to attach weights. used a cordless drill as a weight
- seemed to work, but diameter seems to shrink as it lowers, need to maintain width
- will test different layouts
February 23, 2019
- Got most of the mechanical parts assembled
- Still need to build a weight and paperclip system to pull down
- ended up using 1x1" square aluminum tubing for base support, seems pretty good
- Need to figure out stepper driver setup
- Using arduino and a sparkfun AutoDriver
February 19, 2019
- Got parts in from 3Dhubs and Sculpteo. Everything looks good.
- Should get bearings and bolts later this week.
- Discovered an obvious bug with the current design.
- Needle unable to slide easily into slots
- Thankfully can twist into position on this print. Will use. But also tweak design for future prints.
- Need to raise/trim the top of groove on p3, or cut into base a little bit
February 15, 2019
- I mistakenly assumed 5x10x4 metric bearings (MR105) would be easy to find
- I already ordered 3D prints so im married to this size for now
- McMaster only carries expensive stainless version of this size
- Some available on amazon but they all seem dodgy, will save for last resort
- Will contact local bearing shop to see if they can order in
- Went ahead and ordered from MiSUMi
February 10, 2019
- Ordred 3D printed parts from 3Dhubs.com
- very little control over print settings
- Possible that parts will have sizing issues without being able to measure between prints
Febraury 9, 2019
- ordered laser cut parts from Sculpteo.com
- Their maximum thickness available is 1/8" or ~3.175mm.
- This is thinner than the original machine's 5mm and 6mm parts
- Taking a chance and hoping this wont be a problem structurally
January 2019
- tweaked variables so that laser cut parts will fit within 380mm width.
- This seems to be an industry standard for smaller plastic stock sheets?
December 2018
- Got design in working order, begin cleaning up issues/bugs
November 2018
- Contacted Mar from CirularKnitic
- Retstarted design work
May 27, 2018
- going to make the outside diameter for p3 about 1,000mm so that it will fit within 4 feet.
- The "Mountain" part didnt like being generated for a largr diameter machine. going to have to go back a tweak a couple things.
- looking at polycarbonate prices, seems steel is almost the same price per volume.
- will probably be easier to find a steel plate laser cutter machine shop
- thinking im going to use steel where they used polycarbonate sheets.
May 22, 2018
- getting close to finishing up variable formulas that need to be calculated based on needle dimensions
- part3 "p3" rendering incorrectly.
- diameter not expanding to accomidate more needles
May 1, 2018
- Recieved needles in the mail
- used digital calipers to take measurements
- Documented here OSE_CircularKnitic_v18.03#CKneedleVars-KH260.scad
April 2018
ordered some needles from this hong kong website http://shop.sckmcl.com.hk/product_info.php?products_id=136
- KH260 for Brother Knitting Machine Main Bed Needles 413426001
- might try using 360 needles. sounds like a nice number to shoot for.