@Nicolas_Arias It was getting confusing so my variants had to get first names.
THOR-THe ORiginal
GUS-Geared Up Simpson
LISA-LInear Simpson Alternative (In the works. There is a concept video.)
BOB-BOltless and Bearingless (Planned in my mind only.)
@Nicholas_Seward awesome, thanks!
@Nicholas_Seward Cool re: parts list. Looks like ~24 printed parts in all and yeah a number of them are BIG parts.
I’ll also slice them and report back on the amount of filament it’ll take so people have a closer idea of time and amount of filament required.
I love the names, great project.
I am printing out one of the “Motor Gears” right now. So far it is looking like a really good print. Pronterface is saying it will take 7hrs, got around 3hrs left. Downside is it looks like it will take ~48hrs or so of printing for all of the parts.
@Derek_Tracy IIRC one arm takes me from 4.5-7 hours depending on tweaks. One interesting note is that doing 2 or 3 at a time doesn’t take 2 or 3 times longer. Of course you have to have a big enough printer and you have to trust it and the prints. Good luck!
I seam to have a problem with the 608 bearing holes being to small…
I tested the sizing of the printer and it’s correct…
@Auzze_Auzze I put the parts in a oven on low. I take them out every minute and tap them to listen for the tap to turn to a thud. At that point you should be able to press the bearings in. I have heard that a bearing on a hot plate or the part in boiling water will work.
@Nicholas_Seward do you have to do a similar procedure with Wally’s arms and the like?
@Shane_Graber yes if the bearings require any force to get in. It is a little extra work but the “press” fit is worth it.
Ok I just sliced all the files. For this one, it’s my understanding the recommendation is to slice them at:
- 0.3mm layer height
- 3 solid layers top and bottom
- 3 perimeters
- 25% infill for all parts
With three exceptions:
- 50% infill and 0.2mm layer height for HUB BOTTOM.stl, BOWDEN NUT.stl, LOCK NUT.stl due to threads and the fact that HUB BOTTOM.stl holds the entire arm assembly together. That one parts needs to be strong.
Using the above parameters, I come up with 41 hours of printing and 765 grams of PLA filament.
Also, @Nicholas_Seward uploaded a BOM last night: https://github.com/NicholasSeward/ConceptFORGE/blob/master/GUS%20Simpson/BOM.csv
@Shane_Graber I just finished printing one of the arms (motor and slave) I did it at .2520 layer height and 20% infill. I can atest that the parts are stronger than I thought they would be. Right now I am debating printing out the rest (only have one spool of filament), love the design but still need to talk the wife into letting me buy the electronics (unless someone knows of a willing sponsor)