Unofficial File parts/60932.dat
part image
File Header:
0 ~Constraction Ball Cannon Housing
0 Name: 60932.dat
0 Author: Santeri Piippo [arezey]
0 !LDRAW_ORG Unofficial_Part
0 !LICENSE Redistributable under CCAL version 2.0 : see CAreadme.txt

0 BFC CERTIFY CCW

Status:
2 subfiles aren't certified. (SSN)
Size: 1196 bytes
Reviewers' certifications:
(no current reviews for this file)
Required (unofficial) subfiles:
Technic Axle Hole Hint
Status: Needs more votes. (CN)
Download: p/axlehol0.dat
~Constraction Ball Cannon Housing - Half
Status: 1 subfile isn't certified. (SN)
Related (unofficial) subfiles:
Constraction Ball Cannon (Relaxed)
Status: 5 subfiles aren't certified. (SSSSSN)
Constraction Ball Cannon (Contracted)
Status: 5 subfiles aren't certified. (SSSSSN)
File reviews and updates:
At Tue Jan 2 13:15:00 2018, the file was initially submitted.
Submitted by: arezey
Comments:
Phew!!! it is done at last! Yeah, I pretty much spent all free time of my entire christmas leave on this part. Modeling this part has been my long term goal ever since I got into ldraw in 2009..!

A few notes:

- a lot of what looks like cylinders are actually cones! Not even the top axlehole top part is flat... who designed this?!
- the ventilation holes should've been their own subfile but I didn't think it through all the way, so I wound up doing them *last*, which means that if I now subfile them it's probably going to leave a ton of inaccuracies all around. I should've modeled the holes from the get go... which is the primary reason that the subfile is so huge!
- edger will probably create a lot of unmatched edges at the ventilation holes again because of the slight inaccuracies. I threw Unificator at it but even at 0.01 threshold it didn't budge...
- the ventilation holes were done by first mapping the holes as a flat pattern, projecting it with slicerpro and then making the tubes by extruding the edges and cutting with intersector, the last part is probably responsible for the inaccuracies.
- the business end of the part is very intricate from the inside. I tried to model it as accurately as I could and I got most of the details but had to omit a couple of them to get it done. Peeking inside this was hard enough as it is and it being black most certainly didn't help! But since it's black I don't think that many people will complain that there's a slight detail missing... that you can't really even see if you don't disassemble the skyblaster.
- the backmost top axlehole is made out of quads, there's no hope modeling it with primitives. Maybe it should be hinted with an invisible axlehole primitive for connection-seeking applications?
- the caliper really helped get this right but I still can't help but imagine that the front claws (the ones with the triangles) are a bit too wide... oh well, I think it looks fine nevertheless.

At Tue Jan 2 14:15:01 2018, the following review was posted:

Reviewer: Philo
Certification: novote
Comments:
Looks very good! A hell of a job ;)

"- a lot of what looks like cylinders are actually cones! Not even the top axlehole top part is flat... who designed this?! "
To allow a piece to get out of a mold, there is a little slant in to ease the operation (Draft angle). This is the reason...

At Tue Jan 2 18:10:00 2018, the following review was posted:

Reviewer: Steffen
Certification: novote
Comments:
amazing....

At Wed Jan 3 09:05:00 2018, the following review was posted:

Reviewer: arezey
Certification: novote
Comments:
Thanks much! The other components will get done shortly...

At Sat Jan 20 15:20:01 2018, a new version of the file was submitted.
Submitted by: arezey
Comments:
Axlehole hint added.

Existing certification-votes were deleted.
At Fri Apr 27 07:25:01 2018, a new version of the file was submitted.
Submitted by: arezey
Comments:
Recategorized into Constraction